Today if an Elasticsearch node reaches a disk watermark then it will repeatedly
emit logging about it, which implies that some action needs to be taken by the
administrator. This is misleading. Elasticsearch strives to keep nodes under
the high watermark, but it is normal to have a few nodes occasionally exceed
this level. Nodes may be over the low watermark for an extended period without
any ill effects.
This commit enhances the logging emitted by the `DiskThresholdMonitor` to be
less misleading. The expected case of hitting the high watermark and
immediately relocating one or more shards that to bring the node back under the
watermark again is reduced in severity to `INFO`. Additionally, `INFO` messages
are not emitted repeatedly.
Fixes#48038
The logic for handling empty segment files has been
unnecessary ever since #24021 which removes the support
for these files in 6.x -> we can safely remove the
support for restoring these from 7.x+ to simplify the code.
* Slow log must use separate underlying logger for each index (#47234)
SlowLog instances should not share the same underlying logger, as it would cause different indexes override each other levels. When creating underlying logger, unique per index identifier should be used. Name + IndexSettings.UUID
Closes#42432
There is no reason to still resolve the
fallback `IndexId` here. It only applies to
`2.x` repos and those we can't read anymore
anyway because they use an `/index` instead of
an `/index-N` blob at the repo root for which
at least 7.x+ does not contain the logic to find
it.
Adds `GET /_script_context`, returning a `contexts` object with each
available context as a key whose value is an empty object. eg.
```
{
"contexts": {
"aggregation_selector": {},
"aggs": {},
"aggs_combine": {},
...
}
}
```
refs: #47411
We were not closing repositories on Node shutdown.
In production, this has little effect but in tests
shutting down a node using `MockRepository` and is
currently stuck in a simulated blocked-IO situation
will only unblock when the node's threadpool is
interrupted. This might in some edge cases (many
snapshot threads and some CI slowness) result
in the execution taking longer than 5s to release
all the shard stores and thus we fail the assertion
about unreleased shard stores in the internal test cluster.
Regardless of tests, I think we should close repositories
and release resources associated with them when closing
a node and not just when removing a repository from the CS
with running nodes as this behavior is really unexpected.
Fixes#47689
This PR fixes (#47593). Stored scripts with the old-style id of lang#id are
saved through the upgrade process but are no longer accessible in recent
versions. This fix will drop those scripts altogether since there is no way for
a user to access them.
which is backport merge and adds a new ingest processor, named enrich processor,
that allows document being ingested to be enriched with data from other indices.
Besides a new enrich processor, this PR adds several APIs to manage an enrich policy.
An enrich policy is in charge of making the data from other indices available to the enrich processor in an efficient manner.
Related to #32789
This change modifies the local execution of the `can_match` phase to **not** apply
the plugin's reader wrapper (if it is configured) when acquiring the searcher.
We must ensure that the phase runs quickly and since we don't know the cost
of applying the wrapper it is preferable to avoid it entirely. The can_match
phase can aford false positives so it is also safe for the builtin plugins
that use this functionality.
Closes#46817
With this change, shard allocation prefers allocating replicas on a node
that already has a copy of the shard that is as close as possible to the
primary, so that it is as cheap as possible to bring the new replica in
sync with the primary. Furthermore, if we find a copy that is identical
to the primary then we cancel an ongoing recovery because the new copy
which is identical to the primary needs no work to recover as a replica.
We no longer need to perform a synced flush before performing a rolling
upgrade or full cluster start with this improvement.
Closes#46318
This change should reduce refreshes for a use-case where we perform
multiple realtime gets at the same time on an active index. Currently,
we only call refresh if the index operation is still on the versionMap.
However, at the time we call refresh, that operation might be already or
will be included in the latest reader. Hence, we do not need to refresh.
Adding another lock here is not an issue as the refresh is already
sequential.
If we roll translog but do not index, then a flush without force is a
noop. In this case, the number of retained translog files will be higher
than the value specified by the retention policy.
Closes#4741
Joda was using ResolverStyle.STRICT when parsing. This means that date will be validated to be a correct year, year-of-month, day-of-month
However, we also want to make it works with Year-Of-Era as Joda used to, hence custom temporalquery.localdate in DateFormatters.from
Within DateFormatters we use the correct uuuu year instead of yyyy year of era
worth noting: if yyyy(without an era) is used in code, the parsing result will be a TemporalAccessor which will fail to be converted into LocalDate. We mostly use DateFormatters.from so this takes care of this. If possible the uuuu format should be used.
Today the `elasticsearch-shard remove-corrupted-data` tool will only truncate a
translog it determines to be corrupt. However there may be other cases in which
it is desirable to truncate the translog, for instance if an operation in the
translog cannot be replayed for some reason other than corruption. This commit
adds a `--truncate-clean-translog` option to skip the corruption check on the
translog and blindly truncate it.
Shrink would set `max_retries=1` in order to avoid retrying. This
however sticks to the shrunk index afterwards, causing issues when a
shard copy later fails to allocate just once.
Avoiding a retry of a shrink makes sense since there is no new node
to allocate to and a retry will likely fail again. However, the downside of
having max_retries=1 afterwards outweigh the benefit of not retrying
the failed shrink a few times. This change ensures shrink no longer
sets max_retries and also makes all resize operations (shrink, clone,
split) leave the setting at default value rather than copy it from source.
Enable partial parsing of date part. This is making the behaviour in java.time implementation the same as with joda.
2018, 2018-01 and 2018-01-01 are all valid dates for date_optional_time or strict_date_optional_time
closes#45284closes#47473
SiblingPipelineAggregator is a public interfaces,
but the ctor was package-private. These should be protected so that
plugin authors can extend and implement their own sibling pipeline agg.
Today built-in highlighter and plugins have access to the SearchContext through the
highlighter context. However most of the information exposed in the SearchContext are not needed and a QueryShardContext
would be enough to perform highlighting. This change replaces the SearchContext by the informations that are absolutely
required by highlighter: a QueryShardContext and the SearchContextHighlight. This change allows to reduce the exposure of the
complex SearchContext and remove the needs to clone it in the percolator sub phase.
Relates #47198
Relates #46523
This change fixes a bug that can occur when a shard failure is detected while we build
the search response and accept partial failures in set to false. In this case we currently
call onFailure on the provided listener but also continue the search as if the failure didn't
occur. This can lead to a listener called twice, once with onFailure and once with onSuccess
which is forbidden by design.
This commit is similar to the optimization made in #45765. With this
change, we fsync most of the data of the current generation without
holding writeLock when trimming unreferenced readers.
Relates #45765
Especially in the snapshot code there's a lot
of logic chaining `ActionRunnables` in tricky
ways now and the code is getting hard to follow.
This change introduces two convinience methods that
make it clear that a wrapped listener is invoked with
certainty in some trickier spots and shortens the code a bit.
This is the first iteration in improving of handling of out of
bounds geopoints with a latitude outside of the -90 - +90 range
and a longitude outside of the -180 - +180 range.
Relates to #43916
LINESTRING (0 0, 720 20) is now decomposed into 3 strings:
multilinestring (
(0.0 0.0, 180.0 5.0),
(-180.0 5.0, 180 15),
(-180.0 15.0, 0 20)
)
It also fixes issues with linestrings that intersect antimeridian
more than 5 times.
Fixes#43837Fixes#43826
Currently in the x content serialization tests we compare the exception
messages that are serialized. These exceptions messages are not
equivalent because the exception often changes when serialized to x
content. This commit removes this assertion.
Currently there are two issues with serializing BulkByScrollResponse.
First, when deserializing from XContent, indexing exceptions and search
exceptions are switched. Additionally, search exceptions do no retain
the appropriate RestStatus code, so you must evaluate the status code
from the exception. However, the exception class is not always correctly
retained when serialized.
This commit adds tests in the failure case. Additionally, fixes the
swapping of failure types and adds the rest status code to the search
failure.
Similar to #47507. We are throwing `SnapshotException` when
you (and SLM tests) would expect a `SnapshotMissingException`
for concurrent snapshot status and snapshot delete operations
with a very low probability.
Fixed the exception type and added a test for this scenario.
We're needlessly wrapping a `SnapshotMissingException` which
itself is a `SnapshotException` when trying to load a missing
snapshot. This leads to failure #47442 which expects a
`SnapshotMissingException` in this case.
Closes#47442
Importing dangling indices with aliases risks breaking functionalities
using those aliases. For instance, writing to an alias may break if
there is no is_write_index indication on the existing alias and the
dangling index import adds a second index to the alias. Or an
application could have an assumption about the alias only ever pointing
to one index and suddenly seeing the alias also linked to an old index
could break it. With this change we strip aliases of the index meta data
found before importing a dangling index.
Setting `cluster.routing.allocation.disk.include_relocations` to `false` is a
bad idea since it will lead to the kinds of overshoot that were otherwise fixed
in #46079. This commit deprecates this setting so it can be removed in the next
major release.
this commit introduces a geo-match enrich processor that looks up a specific
`geo_point` field in the enrich-index for all entries that have a geo_shape match field
that meets some specific relation criteria with the input field.
For example, the enrich index may contain documents with zipcodes and their respective
geo_shape. Ingesting documents with a geo_point field can be enriched with which zipcode
they associate according to which shape they are contained within.
this commit also refactors some of the MatchProcessor by moving a lot of the shared code to
AbstractEnrichProcessor.
Closes#42639.
This change removes the special path for deleting
the index metadata blobs and moves deleting them to
the bulk delete of unreferenced blobs at the end of
the snapshot delete process.
This saves N RPC calls for a snapshot containing N
indices and simplifies the code.
Also, this change moves the unreferenced data cleanup up
the stack to make it more obvious that any exceptions during
this pahse will be ignored and not fail the delete request.
Lastly, this change removes the needless chaining of
first deleting unreferenced data from the snapshot delete
and then running the stale data cleanup (that would also run
from the cleanup endpoint) and simply fires off the cleanup
right after updating the repository data (index-N) in parallel
to the other delete operations to speed up the delete some more.
* Add IT for Snapshot Issue in 47552 (#47627)
Adding a specific integration test that reproduces the problem
fixed in #47552. The issue fixed only reproduces in the snapshot
resiliency otherwise which are not available in 6.8 where the
fix is being backported to as well.
Assert given input shards and indices are consistent.
Also, fixed the equality check for SnapshotsInProgress.
Before this change the tests never had more than a single waiting
shard per index so they never failed as a result of the
waiting shards list not being ordered.
Follow up to #47552
Historically, we have two base classes for search actions that generally need to fan out to multiple shards and then move on to the following phase: InitialSearchPhase and AbstractSearchAsyncAction that extends it. Practically, every search action extends the latter, and there are no direct subclasses of InitialSearchPhase in our codebase.
This commit folds InitialSearchPhase into AbstractSearchAsyncAction in the attempt of simplifying things and making the search code running on the coordinating node easier to reason about.
This fixes missing to marking shard snapshots as failures when
multiple data-nodes are lost during the snapshot process or
shard snapshot failures have occured before a node left the cluster.
The problem was that we were simply not adding any shard entries for completed
shards on node-left events. This has no effect for a successful shard, but
for a failed shard would lead to that shard not being marked as failed during
snapshot finalization. Fixed by corectly keeping track of all previous completed
shard states as well in this case.
Also, added an assertion that without this fix would trip on almost every run of the
resiliency tests and adjusted the serialization of SnapshotsInProgress.Entry so
we have a proper assertion message.
Closes#47550
If a shard gets closed we properly abort its snapshot
before closing it. We should in thise case make sure to
not throw a confusing exception about trying to increment
the reference on an already closed shard in the async tasks
if the snapshot is already aborted.
Also, added an assertion to make sure that aborts are in
fact the only situation in which we run into a concurrently
closed store.
Rollover previously requested index stats for all indices in the
provided alias, which causes an exception when there is a closed index
with that alias.
This commit adjusts the IndicesOptions used on the index stats
request so that closed indices are ignored, rather than throwing
an exception.
This commit lifts the validation of the monitoring hosts setting into
the setting itself, rather than when the setting is used. This prevents
a scenario where an invalid value for the setting is accepted, but then
later fails while applying a cluster state with the invalid setting.
This adds a default for the `slm.retention_schedule` setting, setting it
to `0 30 1 * * ?` which is 1:30am every day.
Having retention unset meant that it would never be invoked and clean up
snapshots. We determined it would be better to have a default than never
to be run. When coming to a decision, we weighed the option of an
absolute time (such as 1:30am) versus a periodic invocation (like every
12 hours). In the end we decided on the absolute time because it has
better predictability and consistency than a periodic invocation, which
would rely on when the master node were elected or restarted.
Relates to #43663
We don't need to read the SnapshotInfo for a
snapshot to determine the indices that need to
be updated when it is deleted as the `RepositoryData`
contains that information already.
This PR makes it so the `RepositoryData` is used to
determine which indices to update and also removes
the special handling for deleting snapshot metadata
and the CS snapshot blob and has those simply be
deleted as part of the deleting of other unreferenced
blobs in the last step of the delete.
This makes the snapshot delete a little faster and
more resilient by removing two RPC calls
(the separate delete and the get).
Also, this shortens the diff with #46250 as a
side-effect.
While function scores using scripts do allow explanations, they are only
creatable with an expert plugin. This commit improves the situation for
the newer script score query by adding the ability to set the
explanation from the script itself.
To set the explanation, a user would check for `explanation != null` to
indicate an explanation is needed, and then call
`explanation.set("some description")`.
Today we control the extra translog (when soft-deletes is disabled) for
peer recoveries by size and age. If users manually (force) flush many
times within a short period, we can keep many small (or empty) translog
files as neither the size or age condition is reached. We can protect
the cluster from running out of the file descriptors in such a situation
by limiting the number of retaining translog files.
If we fail to read the global metadata in a snapshot
we would throw `SnapshotMissingException` but wouldn't
do so for the index metadata.
This is breaking SLM tests at a low rate because they
use `SnapshotMissingException` thrown from snapshot status APIs
to wait for a snapshot being gone.
Also, we should be consistent here in general and not leak the
`NoSuchFileException` to the transport layer for index meta.
Closes#46508
Since the property defaulted to `true` this deprecation logging
runs every time unless its set to `false` manually (in which case
it should've also logged but didn't).
I didn't add a tests and removed the tests we had in `7.x` that
covered this logging. I did move the check out of the `if (InetAddresses.isInetAddress(hostString) == false) {` condition so this is sort-of covered by the REST tests.
IMO, any unit-test of this would be somewhat redundant and would've forced
adding a field that just indicates that the deprecated property was used to
every instance which seemed pointless.
Closes#47436
* Remove eclipse conditionals
We used to have some meta projects with a `-test` prefix because
historically eclipse could not distinguish between test and main
source-sets and could only use a single classpath.
This is no longer the case for the past few Eclipse versions.
This PR adds the necessary configuration to correctly categorize source
folders and libraries.
With this change eclipse can import projects, and the visibility rules
are correct e.x. auto compete doesn't offer classes from test code or
`testCompile` dependencies when editing classes in `main`.
Unfortunately the cyclic dependency detection in Eclipse doesn't seem to
take the difference between test and non test source sets into account,
but since we are checking this in Gradle anyhow, it's safe to set to
`warning` in the settings. Unfortunately there is no setting to ignore
it.
This might cause problems when building since Eclipse will probably not
know the right order to build things in so more wirk might be necesarry.
* Fix Snapshot Finalization not Waiting for Index Metadata
We were mixing up the listeners here which led to the final listener
that should be called after all the metadata has been written
to be called before that.
I fixed this by removing the one redundant listener and flattening
the logic out.
* Closes#47425
Today when settings validate, they can only validate against settings
that are of the same type. While this strong-type is convenient from a
development perspective, it is too limiting in that some settings need
to validate against settings of a different type. For example, the list
setting xpack.monitoring.exporters.<namespace>.host wants to validate
that it is non-empty if and only if the string setting
xpack.monitoring.exporters.<namespace>.type is "http". Today this is
impossible since the settings validation framework only allows that
setting to validate against other list settings. This commit increases
the flexibility here to validate against settings of arbitrary type, at
the expense of losing strong-typing during development.
The passage formatter that the unified highlighter use doesn't handle terms with overlapping offsets.
For tokenizer that provides multiple segmentation of the same terms (edge ngram for instance) the formatter
should select the largest span in order to highlight the term only once. This change implements this logic.
Changes auto-id index requests to use optype CREATE, making it compliant with our docs.
This will also make these auto-id index requests compatible with the new "create-doc" index
privilege (which is based on the optype), the default optype is changed to create, just as it is
already documented.
The autoGeneratedTimestamp field is internally used to speed up indexing of operations with
auto-ids, as we can rule out duplicates. Setting this field externally can make the index
inconsistent, resulting in duplicate documents with same id.
Adds support for handling auto-id requests with optype CREATE. Also simplifies the code
handling this by using the standard indexing path when dealing with possible retry conflicts.
Relates #47169
Bulk requests currently do not allow adding "create" actions with auto-generated IDs.
This commit allows using the optype CREATE for append-only indexing operations. This is
mainly the user facing aspect of it.
Synonym queries (when two tokens/paths start at the same position) use the alias field instead
of the concrete field to build Lucene queries. This commit fixes this bug by resolving the alias field upfront in order to provide the concrete field to the actual query parser.
Today, we don't clear the shard info of the primary shard when a new
node joins; then we might risk of making replica allocation decisions
based on the stale information of the primary. The serious problem is
that we can cancel the current recovery which is more advanced than the
copy on the new node due to the old info we have from the primary.
With this change, we ensure the shard info from the primary is not older
than any node when allocating replicas.
Relates #46959
This work was done by Henning in #42518.
Co-authored-by: Henning Andersen <henning.andersen@elastic.co>
This commit adjusts randomization for the cluster shard limit tests so
that there is often more of a gap left between the limit and the size of
the first index. This allows the same randomization to be used for all
tests, and alleviates flakiness in
`testIndexCreationOverLimitFromTemplate`.
Today the comment boldly claims that this line of code keeps nodes above the
10-byte low watermark when in fact this is not true at all. This change fixes
this so that it really does keep nodes above the low watermark.
Fixes#45338. Again.
This is a preliminary of #46250 making the snapshot
delete work by doing all the metadata updates first
and then bulk deleting all of the now unreferenced
blobs.
Before this change, the metadata updates for each shard
and subsequent deletion of the blobs that have become unreferenced
due to the delete would happen sequentially shard-by-shard
parallelising only over all the indices in the snapshot.
This change makes it so the all the metadata updates
happen in parallel on a shard level first.
Once all of the updates of shard-level metadata have finished,
all the now unreferenced blobs are deleted in bulk.
This has two benefits (outside of making #46250 a smaller change):
* We have a lower likelihood of failing to update shard level metadata because
it happens with priority and a higher degree of parallelism
* Deleting of unreferenced data in the shards should go much faster in many cases (rolling indices, large number of indices with many unchanged shards) as well because a number of small bulk deletions (just two blobs for `index-N` and `snap-` for each unchanged shard) are grouped into larger bulk deletes of `100-1000` blobs depending on Cloud provider (even though the final bulk deletes are happening sequentially this should be much faster in almost all cases as you'd parallelism of 50 (GCS) to 500 (S3) snapshot threads to achieve the same delete rates when deleting from unchanged shards).
We cancel ongoing peer recoveries if a node joins the cluster with a completely
up-to-date copy of a shard, because we can use such a copy to recover a replica
instantly. However, today we only look for recoveries to cancel while there are
unassigned shards in the cluster. This means that we do not contemplate the
cancellation of the last few recoveries since recovering shards are not
unassigned. It might take much longer for these recoveries to complete than
would be necessary if they were cancelled.
This commit fixes this by checking for cancellable recoveries even if all
shards are assigned.
As a result of #45689 snapshot finalization started to
take significantly longer than before. This may be a
little unfortunate since it increases the likelihood
of failing to finalize after having written out all
the segment blobs.
This change parallelizes all the metadata writes that
can safely run in parallel in the finalization step to
speed the finalization step up again. Also, this will
generally speed up the snapshot process overall in case
of large number of indices.
This is also a nice to have for #46250 since we add yet
another step (deleting of old index- blobs in the shards
to the finalization.
The method Setting#getRaw leaks implementation details about settings,
namely that they are backed by strings. We do not want code to rely upon
this, so this commit makes Setting#getRaw private as a first step
towards hiding the implementaton details of settings from the rest of
the codebase.
Today plugins may provide upgraders for custom metadata and index metadata, but
these upgraders are bypassed during a rolling restart. Fortunately this
extension mechanism is unused by all known plugins. This commit removes these
extension points.
Relates #47297
Today if you create an index in a cluster without any data nodes then it will
report yellow health because it never attempts to assign any shards if there
are no data nodes, so the new shards remain at `AllocationStatus.NO_ATTEMPT`.
This commit moves the new primaries to `AllocationStatus.DECIDERS_NO` in this
situation, causing the cluster health to move to red.
Fixes#41073
Fixes a bug related to how "closed replicated indices" (introduced in 7.2) interact with the index
metadata storage mechanism, which has special handling for closed indices (but incorrectly
handles replicated closed indices). On non-master-eligible data nodes, it's possible for the
node's manifest file (which tracks the relevant metadata state that the node should persist) to
become out of sync with what's actually stored on disk, leading to an inconsistency that is then
detected at startup, refusing for the node to start up.
Closes#47276
Currently DateMathParser with roundUp = true is relying on the DateFormatter build with
combined optional sub parsers with defaulted fields (depending on the formatter).
That means that for yyyy-MM-dd'T'HH:mm:ss||yyyy-MM-dd'T'HH:mm:ss.SSS
Java.time implementation expects optional parsers in order from most specific to
least specific (reverse in the example above).
It is causing a problem because the first parsing succeeds but does not consume the full input.
The second parser should be used.
We can work around this with keeping a list of RoundUpParsers and iterate over them choosing
the one that parsed full input. The same approach we used for regular (non date math) in
relates #40100
The jdk is not considering this to be a bug https://bugs.openjdk.java.net/browse/JDK-8188771
Those below will expect this change first
relates #46242
relates #45284
backport #46654
Backport of #45794 to 7.x. Convert most `awaitBusy` calls to
`assertBusy`, and use asserts where possible. Follows on from #28548 by
@liketic.
There were a small number of places where it didn't make sense to me to
call `assertBusy`, so I kept the existing calls but renamed the method to
`waitUntil`. This was partly to better reflect its usage, and partly so
that anyone trying to add a new call to awaitBusy wouldn't be able to find
it.
I also didn't change the usage in `TransportStopRollupAction` as the
comments state that the local awaitBusy method is a temporary
copy-and-paste.
Other changes:
* Rework `waitForDocs` to scale its timeout. Instead of calling
`assertBusy` in a loop, work out a reasonable overall timeout and await
just once.
* Some tests failed after switching to `assertBusy` and had to be fixed.
* Correct the expect templates in AbstractUpgradeTestCase. The ES
Security team confirmed that they don't use templates any more, so
remove this from the expected templates. Also rewrite how the setup
code checks for templates, in order to give more information.
* Remove an expected ML template from XPackRestTestConstants The ML team
advised that the ML tests shouldn't be waiting for any
`.ml-notifications*` templates, since such checks should happen in the
production code instead.
* Also rework the template checking code in `XPackRestTestHelper` to give
more helpful failure messages.
* Fix issue in `DataFrameSurvivesUpgradeIT` when upgrading from < 7.4
This commit replaces some uses of Setting#getRaw in the throttling
allocation decider settings. Instead, these settings should be using
fallback settings.
This commit removes some leniency that exists in getting the allow
rebalance setting. Fortunately, that leniency is dead code, this can
never happen. The reason this can never happen is because the settings
infrastructure will not allow setting an invalid value for this
setting. If you try to set this in the elasticsearch.yml, then the node
will fail to start, since parsing the setting will fail. If you try to
set this via an update settings API call, then parsing the setting will
fail and the settings update will be rejected. Therefore, this leniency
can never be activated, so we remove it.
This commit is the first of a few in an attempt to remove the public
uses of Setting#getRaw.
This is the Java side of https://github.com/elastic/ml-cpp/pull/593
with a fallback so that ml-cpp bundles with either the
new or old directory structure work for the time being.
A few days after merging the C++ changes a followup to
this change will be made that removes the fallback.
This change merges the `ShardSearchTransportRequest` and `ShardSearchLocalRequest`
into a single `ShardSearchRequest` that can be used to create a SearchContext.
Relates #46523
Backport of #46241
This PR changes the ingest executing to be non blocking
by adding an additional method to the Processor interface
that accepts a BiConsumer as handler and changing
IngestService#executeBulkRequest(...) to ingest document
in a non blocking fashion iff a processor executes
in a non blocking fashion.
This is the second PR that merges changes made to server module from
the enrich branch (see #32789) into the master branch.
The plan is to merge changes made to the server module separately from
the pr that will merge enrich into master, so that these changes can
be reviewed in isolation.
This change originates from the enrich branch and was introduced there
in #43361.
Today if metadata persistence is excessively slow on a master-ineligible node
then the `ClusterApplierService` emits a warning indicating that the
`GatewayMetaState` applier was slow, but gives no further details. If it is
excessively slow on a master-eligible node then we do not see any warning at
all, although we might see other consequences such as a lagging node or a
master failure.
With this commit we emit a warning if metadata persistence takes longer than a
configurable threshold, which defaults to `10s`. We also emit statistics that
record how much index metadata was persisted and how much was skipped since
this can help distinguish cases where IO was slow from cases where there are
simply too many indices involved.
Backport of #47005.
Currently the logic to check if a connection to a remote discovery node
exists and otherwise create a proxy connection is mixed with the
collect nodes, cluster connection lifecycle, and other
RemoteClusterConnection logic. This commit introduces a specialized
RemoteConnectionManager class which handles the open connections.
Additionally, it reworks the "round-robin" proxy logic to create the list
of potential connections at connection open/close time, opposed to each
time a connection is requested.
We can have a large number of shard copies in this test. For example,
the two recent failures have 24 and 27 copies respectively and all
replicas have to copy segment files as their stores are corrupted. Our
CI needs more than 30 seconds to start all these copies.
Note that in two recent failures, the cluster was green just after the
cluster health timed out.
Closes#41899
* Wait for snapshot completion in SLM snapshot invocation
This changes the snapshots internally invoked by SLM to wait for
completion. This allows us to capture more snapshotting failure
scenarios.
For example, previously a snapshot would be created and then registered
as a "success", however, the snapshot may have been aborted, or it may
have had a subset of its shards fail. These cases are now handled by
inspecting the response to the `CreateSnapshotRequest` and ensuring that
there are no failures. If any failures are present, the history store
now stores the action as a failure instead of a success.
Relates to #38461 and #43663
We should not be quietly ignoring a corrupted shard-level index-N
blob. Simply creating a new empty shard-level index-N and moving
on means that all snapshots of that shard show `SUCESS` as their
state at the repository root but are in fact broken.
This change at least makes it visible to the user that they can't
snapshot the given shard any more and forces the user to move on
to a new repository since the current one is broken and will not
allow snapshotting the inconsistent shard again.
Also, this change stops the delete action for shards with broken
index-N blobs instead of simply deleting all blobs in the path
containing the broken index-N. This prevents a temporarily
broken/missing index-N blob from corrupting all snapshots of
that shard.
Simplify `SnapshotResiliencyTests` to more closely
match the structure of `AbstractCoordinatorTestCase` and allow for
future drying up between the two classes:
* Make the test cluster nodes a nested-class in the test cluster itself
* Remove the needless custom network disruption implementation and
simply track disconnected node ids like `AbstractCoordinatorTestCase`
does
Today we log and swallow exceptions during cluster state application, but such
an exception should not occur. This commit adds assertions of this fact, and
updates the Javadocs to explain it.
Relates #47038
We emit a debug log message whenever a child circuit breaker trips (in
`ChildMemoryCircuitBreaker#circuitBreak(String, long)`) but we never
emit a log message when the parent circuit breaker trips. As this is
more likely to happen with the real memory circuit breaker it is not
possible to detect this in the logs. With this commit we add a log
message on the same log level (debug) when the parent circuit breaker
trips.
We speculatively added support for `regexp` queries on the `_index` field in
#34089 (this functionality was not actually requested by a user). Supporting
regex logic adds complexity to the `_index` field for not much gain, so we
would like to remove it.
From an end-to-end test it turns out this functionality never even worked in
the first place because of an error in how regex flags were interpreted! For
this reason, we can remove support for `regexp` on `_index` without a
deprecation period.
Relates to #46640.
Currently in the ConnectionManager we lock around the node id. This is
odd because we key connections by the ephemeral id. Upon further
investigation it appears to me that we do not need the locking. Using
the concurrent map, we can ensure that only one connection attempt
completes. There is a very small chance that a new connection attempt
will proceed right as another connection attempt is completing. However,
since the whole process is asynchronous and event oriented
(lightweight), that does not seem to be an issue.
Due to recent changes in the nio transport, a failure to bind the server
channel has started to be logged at an error level. This exception leads
to an automatic retry on a different port, so it should only be logged
at a trace level.
Today the `LeaderChecker` rejects checks from nodes that are not in the current
cluster with the exception message `leader check from unknown node` which
offers no information about why the node is unknown. In fact the node must have
been in the cluster in the recent past, so it might help guide the user to a
more useful log message if we describe it as a `removed node` instead of an
`unknown node`. This commit changes the exception message like this, and also
tidies up a few other loose ends in the `LeaderChecker`.
Today `GatewayMetaState` implements `PersistedState` but it's an error to use
it as a `PersistedState` before it's been started, or if the node is
master-ineligible. It also holds some fields that are meaningless on nodes that
do not persist their states. Finally, it takes responsibility for both loading
the original cluster state and some of the high-level logic for writing the
cluster state back to disk.
This commit addresses these concerns by introducing a more specific
`PersistedState` implementation for use on master-eligible nodes which is only
instantiated if and when it's appropriate. It also moves the fields and
high-level persistence logic into a new `IncrementalClusterStateWriter` with a
more appropriate lifecycle.
Follow-up to #46326 and #46532
Relates #47001
Previously, queries on the _index field were not able to specify index aliases.
This was a regression in functionality compared to the 'indices' query that was
deprecated and removed in 6.0.
Now queries on _index can specify an alias, which is resolved to the concrete
index names when we check whether an index matches. To match a remote shard
target, the pattern needs to be of the form 'cluster:index' to match the
fully-qualified index name. Index aliases can be specified in the following query
types: term, terms, prefix, and wildcard.
This commit replaces the SearchContext used in AbstractQueryTestCase with
a QueryShardContext in order to reduce the visibility of search contexts.
Relates #46523
`testLogsWarningPeriodicallyIfClusterNotFormed` simulates a leader failure and
waits for long enough that a failing leader check is scheduled. However it does
not wait for the failing check to actually fail, which requires another two
actions and therefore might take up to 200ms more. Unlucky timing would result
in this test failing, for instance:
./gradle ':server:test' \
--tests "org.elasticsearch.cluster.coordination.CoordinatorTests.testLogsWarningPeriodicallyIfClusterNotFormed" \
-Dtests.jvm.argline="-Dhppc.bitmixer=DETERMINISTIC" \
-Dtests.seed=F18CDD0EBEB5653:E9BC1A8B062E697A
This commit adds the extra delay needed for the leader failure to complete as
expected.
Fixes#46920
This at a very low rate and with the force merge in place
before checking the cache size it's not clear why the cache
is not of size `0` -> seems something else
must be happening here that is unexpected.
-> add debug logging to this test to find out
Relates #46701
We were repeatedly trying to send shard state updates for aborted
snapshots on every cluster state update.
This is simply dead-code since those updates are already safely
sent in the callbacks passed to `SnapshotShardsService#snapshot`.
On master failover, we ensure that the status update is resent
via `SnapshotShardsService#syncShardStatsOnNewMaster`.
=> there is no need for trying to send updates here over and over
and this logic can safely be removed
This assertion was added during the development of required
pipelines. In the initial version of that work, the notion of whether or
not a request was forwarded from the coordinating node to an ingest node
was introduced. It was realized later that instead we needed to track
whether or not the pipeline for the request was resolved. When that
change was made, this assertion, while not incorrect, was left behind
and only applied if the coordnating node was forwarding the
request. Instead, the assertion applies whether or not the request is
being forwarded. This commit addresses that by moving the assertion and
renaming some variables.
This commit adds the ability to require an ingest pipeline on an
index. Today we can have a default pipeline, but that could be
overridden by a request pipeline parameter. This commit introduces a new
index setting index.required_pipeline that acts similarly to
index.default_pipeline, except that it can not be overridden by a
request pipeline parameter. Additionally, a default pipeline and a
request pipeline can not both be set. The required pipeline can be set
to _none to ensure that no pipeline ever runs for index requests on that
index.
This test is broken with a very low failure rate after recent changes.
Particularly after #45689 which does not check for duplicate snapshot
uuids during snapshot finalization any more.
The check for duplicate uuids during finalization was removed
conciously since it lead to problems during master failover.
This test fails because it increments the repository state id in an
unexpected manner now, starting from the impossible situation of having
the same snapshot UUID for two different repository state ids.
This situation can't normally be reached, but we manually crafted it here.
This test didn't do anything before though, because the manually crafted
cluster state would simply result in an error during finalization before
and nothing but a normal snapshot delete would be tested.
=> removing this test here, it doesn't test anything.
Closes#46843
When using auto-generated IDs + the ingest drop processor (which looks to be used by filebeat
as well) + coordinating nodes that do not have the ingest processor functionality, this can lead
to a NullPointerException.
The issue is that markCurrentItemAsDropped() is creating an UpdateResponse with no id when
the request contains auto-generated IDs. The response serialization is lenient for our
REST/XContent format (i.e. we will send "id" : null) but the internal transport format (used for
communication between nodes) assumes for this field to be non-null, which means that it can't
be serialized between nodes. Bulk requests with ingest functionality are processed on the
coordinating node if the node has the ingest capability, and only otherwise sent to a different
node. This means that, in order to reproduce this, one needs two nodes, with the coordinating
node not having the ingest functionality.
Closes#46678
In #46250 we will have to move to two different delete
paths for BwC. Both paths will share the initial
reads from the repository though so I extracted/separated the
delete logic away from the initial reads to significantly simplify
the diff against #46250 here.
Also, I added some JavaDoc from #46250 here as well which makes the
code a little easier to follow even ignoring #46250 I think.
Suppress the reasonable-history check in this test to guarantee we're always getting ops based recovery even after a background sync.
Closes#45953
Co-Authored-By: David Turner <david.turner@elastic.co>
In the case that an ingest processor factory relies on other configuration
in the cluster state in order to construct a processor instance then
it is currently undetermined if a processor facotry can be notified about
a change if multiple cluster state updates are bundled together and
if a processor implement `ClusterStateApplier` interface.
(IngestService implements this interface too)
The idea with ingest cluster state listener is that it is guaranteed to
update the processor factory first before the ingest service creates
a pipeline with their respective processor instances.
Currently this concept is used in the enrich branch:
https://github.com/elastic/elasticsearch/blob/enrich/x-pack/plugin/enrich/src/main/java/org/elasticsearch/xpack/enrich/EnrichProcessorFactory.java#L21
In this case it a processor factory is interested in enrich indices' _meta
mapping fields.
This is the third PR that merges changes made to server module from
the enrich branch (see #32789) into the master branch.
Changes to the server module are merged separately from the pr that will
merge enrich into master, so that these changes can be reviewed in isolation.
Reenable this test since it was fixed by #45689 in production
code (specifically, the fact that we write the `snap-` blobs
without overwrite checks now).
Only required adding the assumed blocking on index file writes
to test code to properly work again.
* Closes#25281
* Write metadata during snapshot finalization after segment files to prevent outdated metadata in case of dynamic mapping updates as explained in #41581
* Keep the old behavior of writing the metadata beforehand in the case of mixed version clusters for BwC reasons
* Still overwrite the metadata in the end, so even a mixed version cluster is fixed by this change if a newer version master does the finalization
* Fixes#41581
Without replicas we won't actually get any relocations
going when removing the node constraints in this test.
Adjusted the code to force relocations by forbidding
nodes that hold primaries instead.
Also, fixed the timeouts and asserted that we actually
get relocations.
Fixes#46276
* [ILM] Add date setting to calculate index age
Add the `index.lifecycle.origination_date` to allow users to configure a
custom date that'll be used to calculate the index age for the phase
transmissions (as opposed to the default index creation date).
This could be useful for users to create an index with an "older"
origination date when indexing old data.
Relates to #42449.
* [ILM] Don't override creation date on policy init
The initial approach we took was to override the lifecycle creation date
if the `index.lifecycle.origination_date` setting was set. This had the
disadvantage of the user not being able to update the `origination_date`
anymore once set.
This commit changes the way we makes use of the
`index.lifecycle.origination_date` setting by checking its value when
we calculate the index age (ie. at "read time") and, in case it's not
set, default to the index creation date.
* Make origination date setting index scope dynamic
* Document orignation date setting in ilm settings
(cherry picked from commit d5bd2bb77ee28c1978ab6679f941d7c02e389d32)
Signed-off-by: Andrei Dan <andrei.dan@elastic.co>
* Parallelize Repository Cleanup Actions
Deleting root blobs and unreferenced indices can safely happen in parallel,
no need to have both operations run sequentially when they preclude all other
repository operations.
We added docs for proxy mode in #40281 but on reflection we should not be
documenting this setting since it does not play well with all proxies and we
can't recommend its use. This commit removes those docs and expands its Javadoc
instead.
We renew the CCR retention lease at a fixed interval, therefore it's
possible to have more than one in-flight renewal requests at the same
time. If requests arrive out of order, then the assertion is violated.
Closes#46416Closes#46013
Synced-flush consists of three steps: (1) force-flush on every active
copy; (2) check for ongoing indexing operations; (3) seal copies if
there's no change since step 1. If some indexing operations are
completed on the primary but not replicas, then Lucene commits from step
1 on replicas won't be the same as the primary's. And step 2 would pass
if it's executed when all pending operations are done. Once step 2
passes, we will incorrectly emit the "out of sync" warning message
although nothing wrong here.
Relates #28464
Relates #30244
There's nothing wrong in the logs from these failures. I think 30
seconds might not be enough to relocate shards with many documents as CI
is quite slow. This change increases the timeout to 60 seconds for these
relocation tests. It also dumps the hot threads in case of timed out.
Closes#46526Closes#46439
This change delays the creation of the SubSearchContext for nested and parent/child inner_hits
to the fetch sub phase in order to ensure that a SearchContext can built entirely from a
QueryShardContext. This commit also adds a validation step to the inner hits builder that ensures that we fail the request early if the inner hits path is invalid.
Relates #46523
Fixes that way linestrings that are crossing the antimeridian are
indexed due to a normalization bug these lines were decomposed into
a line segment that was stretching entire globe.
Fixes#43775
This makes the AllocatedPersistentTask#init() method protected so that
implementing classes can perform their initialization logic there,
instead of the constructor. Rollup's task is adjusted to use this
init method.
It also slightly refactors the methods to se a static logger in the
AllocatedTask instead of passing it in via an argument. This is
simpler, logged messages come from the task instead of the
service, and is easier for tests
This commit replaces the `SearchContext` with the `QueryShardContext` when building aggregator factories. Aggregator factories are part of the `SearchContext` so they shouldn't require a `SearchContext` to create them.
The main changes here are the signatures of `AggregationBuilder#build` that now takes a `QueryShardContext` and `AggregatorFactory#createInternal` that passes the `SearchContext` to build the `Aggregator`.
Relates #46523
* Fix Path comparisons for Windows tests
The test NodeEnvironmentTests#testCustonDataPaths worked just fine on
Darwin and Linux, but the comparison was breaking in Windows because one
path had the "C:\" prefix and the other one didn't. The simple fix is to
compare absolute paths rather than potentially relative ones.
Currently we allow `_field_names` fields to be disabled explicitely, but since
the overhead is negligible now we decided to keep it turned on by default and
deprecate the `enable` option on the field type. This change adds a deprecation
warning whenever this setting is used, going forward we want to ignore and finally
remove it.
Closes#27239
* More Efficient Ordering of Shard Upload Execution (#42791)
* Change the upload order of of snapshots to work file by file in parallel on the snapshot pool instead of merely shard-by-shard
* Inspired by #39657
* Cleanup BlobStoreRepository Abort and Failure Handling (#46208)
This commit replaces the `SearchContext` with the `QueryShardContext` when building collapsing conteext
Collapse context is part of the `SearchContext` so it shouldn't require a `SearchContext` to create one.
Relates #46523
This change adds an IndexSearcher and the node's BigArrays in the QueryShardContext.
It's a spin off of #46527 as this change is required to allow aggregation builder to solely use the
query shard context.
Relates #46523
Obviously we have to run the status request again to busy wait for
the `STARTED` state, just busy waiting on an existing response
won't do anything.
Closes#45917
* Add retention to Snapshot Lifecycle Management (#46407)
This commit adds retention to the existing Snapshot Lifecycle Management feature (#38461) as described in #43663. This allows a user to configure SLM to automatically delete older snapshots based on a number of criteria.
An example policy would look like:
```
PUT /_slm/policy/snapshot-every-day
{
"schedule": "0 30 2 * * ?",
"name": "<production-snap-{now/d}>",
"repository": "my-s3-repository",
"config": {
"indices": ["foo-*", "important"]
},
// Newly configured retention options
"retention": {
// Snapshots should be deleted after 14 days
"expire_after": "14d",
// Keep a maximum of thirty snapshots
"max_count": 30,
// Keep a minimum of the four most recent snapshots
"min_count": 4
}
}
```
SLM Retention is run on a scheduled configurable with the `slm.retention_schedule` setting, which supports cron expressions. Deletions are run for a configurable time bounded by the `slm.retention_duration` setting, which defaults to 1 hour.
Included in this work is a new SLM stats API endpoint available through
``` json
GET /_slm/stats
```
That returns statistics about snapshot taken and deleted, as well as successful retention runs, failures, and the time spent deleting snapshots. #45362 has more information as well as an example of the output. These stats are also included when retrieving SLM policies via the API.
* Add base framework for snapshot retention (#43605)
* Add base framework for snapshot retention
This adds a basic `SnapshotRetentionService` and `SnapshotRetentionTask`
to start as the basis for SLM's retention implementation.
Relates to #38461
* Remove extraneous 'public'
* Use a local var instead of reading class var repeatedly
* Add SnapshotRetentionConfiguration for retention configuration (#43777)
* Add SnapshotRetentionConfiguration for retention configuration
This commit adds the `SnapshotRetentionConfiguration` class and its HLRC
counterpart to encapsulate the configuration for SLM retention.
Currently only a single parameter is supported as an example (we still
need to discuss the different options we want to support and their
names) to keep the size of the PR down. It also does not yet include version serialization checks
since the original SLM branch has not yet been merged.
Relates to #43663
* Fix REST tests
* Fix more documentation
* Use Objects.equals to avoid NPE
* Put `randomSnapshotLifecyclePolicy` in only one place
* Occasionally return retention with no configuration
* Implement SnapshotRetentionTask's snapshot filtering and delet… (#44764)
* Implement SnapshotRetentionTask's snapshot filtering and deletion
This commit implements the snapshot filtering and deletion for
`SnapshotRetentionTask`. Currently only the expire-after age is used for
determining whether a snapshot is eligible for deletion.
Relates to #43663
* Fix deletes running on the wrong thread
* Handle missing or null policy in snap metadata differently
* Convert Tuple<String, List<SnapshotInfo>> to Map<String, List<SnapshotInfo>>
* Use the `OriginSettingClient` to work with security, enhance logging
* Prevent NPE in test by mocking Client
* Allow empty/missing SLM retention configuration (#45018)
Semi-related to #44465, this allows the `"retention"` configuration map
to be missing.
Relates to #43663
* Add min_count and max_count as SLM retention predicates (#44926)
This adds the configuration options for `min_count` and `max_count` as
well as the logic for determining whether a snapshot meets this criteria
to SLM's retention feature.
These options are optional and one, two, or all three can be specified
in an SLM policy.
Relates to #43663
* Time-bound deletion of snapshots in retention delete function (#45065)
* Time-bound deletion of snapshots in retention delete function
With a cluster that has a large number of snapshots, it's possible that
snapshot deletion can take a very long time (especially since deletes
currently have to happen in a serial fashion). To prevent snapshot
deletion from taking forever in a cluster and blocking other operations,
this commit adds a setting to allow configuring a maximum time to spend
deletion snapshots during retention. This dynamic setting defaults to 1
hour and is best-effort, meaning that it doesn't hard stop a deletion
at an hour mark, but ensures that once the time has passed, all
subsequent deletions are deferred until the next retention cycle.
Relates to #43663
* Wow snapshots suuuure can take a long time.
* Use a LongSupplier instead of actually sleeping
* Remove TestLogging annotation
* Remove rate limiting
* Add SLM metrics gathering and endpoint (#45362)
* Add SLM metrics gathering and endpoint
This commit adds the infrastructure to gather metrics about the different SLM actions that a cluster
takes. These actions are stored in `SnapshotLifecycleStats` and perpetuated in cluster state. The
stats stored include the number of snapshots taken, failed, deleted, the number of retention runs,
as well as per-policy counts for snapshots taken, failed, and deleted. It also includes the amount
of time spent deleting snapshots from SLM retention.
This commit also adds an endpoint for retrieving all stats (further commits will expose this in the
SLM get-policy API) that looks like:
```
GET /_slm/stats
{
"retention_runs" : 13,
"retention_failed" : 0,
"retention_timed_out" : 0,
"retention_deletion_time" : "1.4s",
"retention_deletion_time_millis" : 1404,
"policy_metrics" : {
"daily-snapshots2" : {
"snapshots_taken" : 7,
"snapshots_failed" : 0,
"snapshots_deleted" : 6,
"snapshot_deletion_failures" : 0
},
"daily-snapshots" : {
"snapshots_taken" : 12,
"snapshots_failed" : 0,
"snapshots_deleted" : 12,
"snapshot_deletion_failures" : 6
}
},
"total_snapshots_taken" : 19,
"total_snapshots_failed" : 0,
"total_snapshots_deleted" : 18,
"total_snapshot_deletion_failures" : 6
}
```
This does not yet include HLRC for this, as this commit is quite large on its own. That will be
added in a subsequent commit.
Relates to #43663
* Version qualify serialization
* Initialize counters outside constructor
* Use computeIfAbsent instead of being too verbose
* Move part of XContent generation into subclass
* Fix REST action for master merge
* Unused import
* Record history of SLM retention actions (#45513)
This commit records the deletion of snapshots by the retention component
of SLM into the SLM history index for the purposes of reviewing operations
taken by SLM and alerting.
* Retry SLM retention after currently running snapshot completes (#45802)
* Retry SLM retention after currently running snapshot completes
This commit adds a ClusterStateObserver to wait until the currently
running snapshot is complete before proceeding with snapshot deletion.
SLM retention waits for the maximum allowed deletion time for the
snapshot to complete, however, the waiting time is not factored into
the limit on actual deletions.
Relates to #43663
* Increase timeout waiting for snapshot completion
* Apply patch
From 2374316f0d.patch
* Rename test variables
* [TEST] Be less strict for stats checking
* Skip SLM retention if ILM is STOPPING or STOPPED (#45869)
This adds a check to ensure we take no action during SLM retention if
ILM is currently stopped or in the process of stopping.
Relates to #43663
* Check all actions preventing snapshot delete during retention (#45992)
* Check all actions preventing snapshot delete during retention run
Previously we only checked to see if a snapshot was currently running,
but it turns out that more things can block snapshot deletion. This
changes the check to be a check for:
- a snapshot currently running
- a deletion already in progress
- a repo cleanup in progress
- a restore currently running
This was found by CI where a third party delete in a test caused SLM
retention deletion to throw an exception.
Relates to #43663
* Add unit test for okayToDeleteSnapshots
* Fix bug where SLM retention task would be scheduled on every node
* Enhance test logging
* Ignore if snapshot is already deleted
* Missing import
* Fix SnapshotRetentionServiceTests
* Expose SLM policy stats in get SLM policy API (#45989)
This also adds support for the SLM stats endpoint to the high level rest client.
Retrieving a policy now looks like:
```json
{
"daily-snapshots" : {
"version": 1,
"modified_date": "2019-04-23T01:30:00.000Z",
"modified_date_millis": 1556048137314,
"policy" : {
"schedule": "0 30 1 * * ?",
"name": "<daily-snap-{now/d}>",
"repository": "my_repository",
"config": {
"indices": ["data-*", "important"],
"ignore_unavailable": false,
"include_global_state": false
},
"retention": {}
},
"stats": {
"snapshots_taken": 0,
"snapshots_failed": 0,
"snapshots_deleted": 0,
"snapshot_deletion_failures": 0
},
"next_execution": "2019-04-24T01:30:00.000Z",
"next_execution_millis": 1556048160000
}
}
```
Relates to #43663
* Rewrite SnapshotLifecycleIT as as ESIntegTestCase (#46356)
* Rewrite SnapshotLifecycleIT as as ESIntegTestCase
This commit splits `SnapshotLifecycleIT` into two different tests.
`SnapshotLifecycleRestIT` which includes the tests that do not require
slow repositories, and `SLMSnapshotBlockingIntegTests` which is now an
integration test using `MockRepository` to simulate a snapshot being in
progress.
Relates to #43663Resolves#46205
* Add error logging when exceptions are thrown
* Update serialization versions
* Fix type inference
* Use non-Cancellable HLRC return value
* Fix Client mocking in test
* Fix SLMSnapshotBlockingIntegTests for 7.x branch
* Update SnapshotRetentionTask for non-multi-repo snapshot retrieval
* Add serialization guards for SnapshotLifecyclePolicy
Today we load the metadata from disk while constructing the node. However there
is no real need to do so, and this commit moves that code to run later while
the node is starting instead.
Registering two different http methods on the same path using different
wildcard names would result in the last wildcard name being active only.
Now throw an exception instead.
Closes#46482
The cuckoofilters could be randomly created with too small of
capacity or precision, which means that they can only absorb a few
values before collisions start to make all filters look identical.
This increases the size of filters we generate (capacity >> than
the test cases) and lower fpp rate.
Today when the membership of the cluster changes we log messages that describe
the change like this:
added {{node-1}{OPdaTIGmSxaEXXOyg3o96w}{127.0.0.1}{127.0.0.1:9301}{di},}
The trailing comma suggests there is some missing string that might contain
extra information, but in fact it's an artefact of how these messages are
constructed. This commit removes the trailing comma from these lists.
I couldn't find a test for this, as it seems we only get
into this error handler on a bug. Regardless, we are
executing the snapshot finalization on the master update
thread here which shouldn't happen and will make
debugging a production issue resulting from this
trickier than it has to be (because we probably also
get a cluster state apply is slow warning in addition
to the original bug).
Used the generic pool here instead of the snapshot pool
because we're resolving the user callback here as
well and the generic pool seemed like the safer bet for
that.
Previously, we ignore replication for noop updates because they do not
have sequence numbers. Since #44603, we started assigning sequence
numbers to noop updates leading them to be replicated to replicas.
This bug occurs only on 8.0 for it requires #41065 and #44603.
Closes#46366
Following performance optimisations to the adjacency_matrix aggregation we no longer require this setting. Marked as deprecated and due for removal in 8.0
Related #46324
This is a follow up of #19191 for 7.x.
This change adds a system property called "es.routing.search_ignore_awareness_attributes" that when set to true will
effectively ignore allocation awareness attributes when routing search and get requests. This is now the default in 8.x so this
commit adds a way to opt-in to this new behavior in a minor version of 7.x.
Relates #45735
When the Elasticsearch process does not have write permissions to
upgrade the Elasticsearch keystore, we bail with an error message that
indicates there is a filesystem permissions problem. This commit
clarifies that error message by pointing out the directory where write
permissions are required, or that the user can also run the
elasticsearch-keystore upgrade command manually before starting the
Elasticsearch process. In this case, the upgrade would not be needed at
runtime, so the permissions would not be needed then.
* Support geotile_grid aggregation in composite agg sources (#45810)
Adds support for `geotile_grid` as a source in composite aggs.
Part of this change includes adding a new docFormat of `GEOTILE` that formats a hashed `long` value into a geotile formatting string `zoom/x/y`.
In order to track down #46091:
* Enables debug logging in REST tests for `master` and `coordination` packages
since we suspect that issues are caused by failed and then retried publications
These were actually never intended to be logged at the warning level but made visible by a refactoring in #19991, which introduced a new exception type but forgot to adapt some of the consumers of the exception.
This PR merges the `vectors-optimize-brute-force` feature branch, which makes
the following changes to how vector functions are computed:
* Precompute the L2 norm of each vector at indexing time. (#45390)
* Switch to ByteBuffer for vector encoding. (#45936)
* Decode vectors and while computing the vector function. (#46103)
* Use an array instead of a List for the query vector. (#46155)
* Precompute the normalized query vector when using cosine similarity. (#46190)
Co-authored-by: Mayya Sharipova <mayya.sharipova@elastic.co>
Unfortunately, with this change, we won't clean up all unreferenced
generations when reopening. We assume that there's at most one
unreferenced generation when reopening translog. The previous
implementation guarantees this assumption by syncing translog every time
after we remove a translog reader. This change, however, only syncs
translog once after we have removed all unreferenced readers (can be
more than one) and breaks the assumption.
Closes#46267
This reverts commit fd8183ee51d7cf08d9def58a2ae027714beb60de.
This commit is a follow-up to a change that fixed that multi-get was not
triggering a shard to become search active. In that change, we added a
test that multi-get properly triggers a shard to become search
active. This commit is a follow-up to that change which adds a test for
the get case. While get is already handled correctly in production code,
there was not a test for it. This commit adds one. Additionally, we
factor all the search idle tests from IndexShardIT into a separate test
class, as an effort to keep related tests together instead of a single
large test class containing a jumble of tests, and also to keep test
classes smaller for better parallelization.
Avoid pre-allocating ((N * N) - N) / 2 “BitsIntersector” objects given N filters.
Most adjacency matrices will be sparse and we typically don’t need to allocate all of these objects - can save a lot of allocations when the number of filters is high.
Closes#46212
Previously, we send recovery requests using CancellableThreads because
we send requests and wait for responses in a blocking manner. With async
recovery, we no longer need to do so. Moreover, if we fail to submit a
request, then we can release the Store using an interruptible thread
which can risk invalidating the node lock.
This PR is the first step to avoid forking when releasing the Store.
Relates #45409
Relates #46178
An exception from the DefaultSearchContext constructor could leak a
searcher, causing future issues like shard lock obtained exceptions. The
underlying cause of the exception in the constructor has been fixed, but
as a safety precaution we also fix the exception handling in
createContext.
Closes#45378
If a primary as being relocated, then the global checkpoint and
retention lease background sync can emit unnecessary warning logs.
This side effect was introduced in #42241.
Relates #40800
Relates #42241
When a shard has fallen search idle, and a non-realtime multi-get
request is executed, today such requests do not wait for the shard to
become search active and therefore such requests do not wait for a
refresh to see the latest changes to the index. This also prevents such
requests from triggering the shard as non-search idle, influencing the
behavior of scheduled refreshes. This commit addresses this by attaching
a listener to the shard search active state for multi-get requests. In
this way, when the next scheduled refresh is executed, the multi-get
request will then proceed.
testSyncFailsIfOperationIsInFlight could fail due to the index request
spawing a GCP sync (new since 7.4). Test now waits for it to finish
before testing that flushed sync fails.
With this change, we can avoid blocking writing threads when trimming
unreferenced readers; hence improving the translog writing performance
in async durability mode.
Close#46201
* Wait for all Rec. to Stop on Node Close
* This issue is in the `RecoverySourceHandler#acquireStore`. If we submit the store release to the generic threadpool while it is getting shut down we never complete the futue we wait on (in the generic pool as well) and fail to ever release the store potentially.
* Fixed by waiting for all recoveries to end on node close so that we aways have a healthy thread pool here
* Closes#45956
This is the first PR that merges changes made to server module from
the enrich branch (see #32789) into the master branch.
The plan is to merge changes made to the server module separately from
the pr that will merge enrich into master, so that these changes can
be reviewed in isolation.
When recovering a shard locally, we use a translog snapshot from
newSnapshotFromGen which consists of all readers from a certain
generation. In the test, we use newSnapshotFromMinSeqNo for the
expectation. The snapshot of this method includes only readers
containing operations in the requesting range.
Closes#46022
If a node is misconfigured to talk to remote node HTTP port (instead of
transport port) eventually it will receive an HTTP response from the
remote node on transport port (this happens when a node sends
accidentally line terminating byte in a transport request).
If this happens today it results in a non-friendly log message and a
long stack trace.
This commit adds a check if a malformed response is HTTP response. In
this case, a concise log message would appear.
(cherry picked from commit 911d02b7a9c3ce7fe316360c127a935ca4b11f37)
When a query contains a mandatory clause that doesn't track the max score per
block, we disable the max score optimization. Previously, we were doing this by
wrapping the collector with a FilterCollector that always returned
ScoreMode.COMPLETE.
However we weren't adjusting totalHitsThreshold, so the collector could still
call Scorer#setMinCompetitiveScore. It is against the method contract to call
setMinCompetitiveScore when the score mode is COMPLETE, and some scorers like
ReqOptSumScorer throw an error in this case.
This commit tries to disable the optimization by always setting
totalHitsThreshold to max int, as opposed to wrapping the collector.
Today we might carry on a big merge uncommitted and therefore
occupy a significant amount of diskspace for quite a long time
if for instance indexing load goes down and we are not quickly
reaching the translog size threshold. This change will cause a
flush if we hit a significant merge (512MB by default) which
frees diskspace sooner.
We only sync translog if the given offset hasn't synced yet. We can't
verify the global checkpoint from the latest translog checkpoint unless
a sync has occurred.
Closes#46065
Relates #45634
Today the `DiskThresholdDecider` attempts to account for already-relocating
shards when deciding how to allocate or relocate a shard. Its goal is to stop
relocating shards onto a node before that node exceeds the low watermark, and
to stop relocating shards away from a node as soon as the node drops below the
high watermark.
The decider handles multiple data paths by only accounting for relocating
shards that affect the appropriate data path. However, this mechanism does not
correctly account for _new_ relocating shards, which are unwittingly ignored.
This means that we may evict far too many shards from a node above the high
watermark, and may relocate far too many shards onto a node causing it to blow
right past the low watermark and potentially other watermarks too.
There are in fact two distinct issues that this PR fixes. New incoming shards
have an unknown data path until the `ClusterInfoService` refreshes its
statistics. New outgoing shards have a known data path, but we fail to account
for the change of the corresponding `ShardRouting` from `STARTED` to
`RELOCATING`, meaning that we fail to find the correct data path and treat the
path as unknown here too.
This PR also reworks the `MockDiskUsagesIT` test to avoid using fake data paths
for all shards. With the changes here, the data paths are handled in tests as
they are in production, except that their sizes are fake.
Fixes#45177
Today we assume that document failures can not occur for deletes. This
assumption is bogus, as they can fail for a variety of reasons such as
the Lucene index having reached the document limit. Because of this
assumption, we were asserting that such a document-level failure would
never happen. When this bogus assertion is violated, we fail the node, a
catastrophe. Instead, we need to treat this as a fatal engine exception.
Today we assume that document failures can not occur for no-ops. This
assumption is bogus, as they can fail for a variety of reasons such as
the Lucene index having reached the document limit. Because of this
assumption, we were asserting that such a document-level failure would
never happen. When this bogus assertion is violated, we fail the node, a
catastrophe. Instead, we need to treat this as a fatal engine exception.
Backport of 1a0dddf4ad24b3f2c751a1fe0e024fdbf8754f94 (AKA #445395)
* Add support for a Range field ValuesSource, including decode logic for range doc values and exposing RangeType as a first class enum
* Provide hooks in ValuesSourceConfig for aggregations to control ValuesSource class selection on missing & script values
* Branch aggregator creation in Histogram and DateHistogram based on ValuesSource class, to enable specialization based on type. This is similar to how Terms aggregator works.
* Prioritize field type when available for selecting the ValuesSource class type to use for an aggregation
Searching with `allowPartialSearchResults=false` could still return
partial search results during recovery. If a shard copy fails
with a "shard not available" exception, the failure would be ignored and
a partial result returned. The one case where this is known to happen
is when a shard copy is recovering when searching, since
`IllegalIndexShardStateException` is considered a "shard not available"
exception.
Relates to #42612
Since #45473, we trim translog below the local checkpoint of the safe
commit immediately if soft-deletes enabled. In
testRestoreLocalHistoryFromTranslog, we should have a safe commit after
recoverFromTranslog is called; then we will trim translog files which
contain only operations that are at most the global checkpoint.
With this change, we relax the assertion to ensure that we don't put
operations to translog while recovering history from the local translog.
If two translog syncs happen concurrently, then one can return before
its operations are marked as persisted. In general, this should not be
an issue; however, peer recoveries currently rely on this assumption.
Closes#29161
Today we create new engines under IndexShard#mutex. This is not ideal
because it can block the cluster state updates which also execute under
the same mutex. We can avoid this problem by creating new engines under
a separate mutex.
Closes#43699
This commit starts from the simple premise that the use of node settings
in blob store repositories is a mistake. Here we see that the node
settings are used to get default settings for store and restore throttle
rates. Yet, since there are not any node settings registered to this
effect, there can never be a default setting to fall back to there, and
so we always end up falling back to the default rate. Since this was the
only use of node settings in blob store repository, we move them. From
this, several places fall out where we were chaining settings through
only to get them to the blob store repository, so we clean these up as
well. That leaves us with the changeset in this commit.
This adds a pipeline aggregation that calculates the cumulative
cardinality of a field. It does this by iteratively merging in the
HLL sketch from consecutive buckets and emitting the cardinality up
to that point.
This is useful for things like finding the total "new" users that have
visited a website (as opposed to "repeat" visitors).
This is a Basic+ aggregation and adds a new Data Science plugin
to house it and future advanced analytics/data science aggregations.
Backport of #45799
This PR modifies the logic in IngestService to preserve the original content type
on the IndexRequest, such that when a document with a content type like SMILE
is submitted to a pipeline, the resulting document that is persisted will remain in
the original content type (SMILE in this case).
This is essentially the same issue fixed in #43362 but for http request
version instead of the request method. We have to deal with the
case of not being able to parse the request version, otherwise
channel closing fails.
Fixes#43850
The snapshot status when blocking can still be INIT in rare cases when
the new cluster state that has the snapshot in `STARTED` hasn't yet
become visible.
Fixes#45917
This commit enhances logging for 2 cases:
1. If non-TLS enabled node receives transport message from TLS enabled
node on transport port.
2. If non-TLS enabled node receives HTTPs request on transport port.
(cherry picked from commit 4f52ebd32eb58526b4c8022f8863210bf88fc9be)
Closing a `RemoteClusterConnection` concurrently with trying to connect
could result in double invoking the listener.
This fixes
RemoteClusterConnectionTest#testCloseWhileConcurrentlyConnecting
Closes#45845
In case of an in-progress snapshot this endpoint was broken because
it tried to execute repository operations in the callback on a
transport thread which is not allowed (only generic or snapshot
pool are allowed here).
This commit namespaces the existing processors setting under the "node"
namespace. In doing so, we deprecate the existing processors setting in
favor of node.processors.
Since #45136, we use soft-deletes instead of translog in peer recovery.
There's no need to retain extra translog to increase a chance of
operation-based recoveries. This commit ignores the translog retention
policy if soft-deletes is enabled so we can discard translog more
quickly.
Backport of #45473
Relates #45136
Today, when rolling a new translog generation, we block all write
threads until a new generation is created. This choice is perfectly
fine except in a highly concurrent environment with the translog
async setting. We can reduce the blocking time by pre-sync the
current generation without writeLock before rolling. The new step
would fsync most of the data of the current generation without
blocking write threads.
Close#45371
Follow up on #32806.
The system property es.http.cname_in_publish_address is deprecated
starting from 7.0.0 and deprecation warning should be added if the
property is specified.
This PR will go to 7.x and master.
Follow-up PR to remove es.http.cname_in_publish_address property
completely will go to the master.
(cherry picked from commit a5ceca7715818f47ec87dd5f17f8812c584b592b)
* There is no point in listing out every shard over and over when the `index-N` blob in the shard contains a list of all the files
* Rebuilding the `index-N` from the `snap-${uuid}.dat` blobs does not provide any material benefit. It only would in the corner case of a corrupted `index-N` but otherwise uncorrupted blobs since we neither check the correctness of the content of all segment blobs nor do we do a similar recovery at the root of the repository.
* Also, at least in version `6.x` we only mark a shard snapshot as successful after writing out the updated `index-N` blob so all snapshots that would work with `7.x` and newer must have correct `index-N` blobs
=> Removed the rebuilding of the `index-N` content from `snap-${uuid}.dat` files and moved to only listing `index-N` when taking a snapshot instead of listing all files
=> Removed check of file existence against physical blob listing
=> Kept full listing on the delete side to retain full cleanup of blobs that aren't referenced by the `index-N`
This PR introduces a mechanism to cancel a search task when its corresponding connection gets closed. That would relief users from having to manually deal with tasks and cancel them if needed. Especially the process of finding the task_id requires calling get tasks which needs to call every node in the cluster.
The implementation is based on associating each http channel with its currently running search task, and cancelling the task when the previously registered close listener gets called.
Today we can release a Store using CancellableThreads. If we are holding
the last reference, then we will verify the node lock before deleting
the store. Checking node lock performs some I/O on FileChannel. If the
current thread is interrupted, then the channel will be closed and the
node lock will also be invalid.
Closes#45237
* Add is_write_index column to cat.aliases (#44772)
Aliases have had the option to set `is_write_index` since 6.4,
but the cat.aliases action was never updated.
* correct version bounds to 7.4
Most of our CLI tools use the Terminal class, which previously did not provide methods for writing to standard output. When all output goes to standard out, there are two basic problems. First, errors and warnings are "swallowed" in pipelines, making it hard for a user to know when something's gone wrong. Second, errors and warnings are intermingled with legitimate output, making it difficult to pass the results of interactive scripts to other tools.
This commit adds a second set of print commands to Terminal for printing to standard error, with errorPrint corresponding to print and errorPrintln corresponding to println. This leaves it to developers to decide which output should go where. It also adjusts existing commands to send errors and warnings to stderr.
Usage is printed to standard output when it's correctly requested (e.g., bin/elasticsearch-keystore --help) but goes to standard error when a command is invoked incorrectly (e.g. bin/elasticsearch-keystore list-with-a-typo | sort).
* Repository Cleanup Endpoint (#43900)
* Snapshot cleanup functionality via transport/REST endpoint.
* Added all the infrastructure for this with the HLRC and node client
* Made use of it in tests and resolved relevant TODO
* Added new `Custom` CS element that tracks the cleanup logic.
Kept it similar to the delete and in progress classes and gave it
some (for now) redundant way of handling multiple cleanups but only allow one
* Use the exact same mechanism used by deletes to have the combination
of CS entry and increment in repository state ID provide some
concurrency safety (the initial approach of just an entry in the CS
was not enough, we must increment the repository state ID to be safe
against concurrent modifications, otherwise we run the risk of "cleaning up"
blobs that just got created without noticing)
* Isolated the logic to the transport action class as much as I could.
It's not ideal, but we don't need to keep any state and do the same
for other repository operations
(like getting the detailed snapshot shard status)
This change adds a new option called user_dictionary_rules to
Kuromoji's tokenizer. It can be used to set additional tokenization rules
to the Japanese tokenizer directly in the settings (instead of using a file).
This commit also adds a check that no rules are duplicated since this is not allowed
in the UserDictionary.
Closes#25343
Backports PR #45737:
Similar to PR #45030 integration test testDontCacheScripts() was moved to unit test AvgAggregatorTests#testDontCacheScripts.
AvgIT class was removed.
If the background refresh is running, but not finished yet then the
document might not be visible to the next search. Thus, if
scheduledRefresh returns false, we need to wait until the background
refresh is done.
Closes#45571
`OsProbe` fetches cgroup data from the filesystem, and has asserts that
check for missing values. This PR changes most of these asserts into
runtime checks, since at least one user has reported an NPE where
a piece of cgroup data was missing.
Backport of #45606 to 7.x.
If a scheduled task of an AbstractAsyncTask starts after it was closed,
then isScheduledOrRunning can remain true forever although no task is
running or scheduled.
Closes#45576
The elasticsearch keystore was originally backed by a PKCS#12 keystore, which had several limitations. To overcome some of these limitations in encoding, the setting names existing within the keystore were limited to lowercase alphanumberic (with underscore). Now that the keystore is backed by an encrypted blob, this restriction is no longer relevant. This commit relaxes that restriction by allowing uppercase ascii characters as well.
closes#43835
Changes the order of parameters in Geometries from lat, lon to lon, lat
and moves all Geometry classes are moved to the
org.elasticsearch.geomtery package.
Backport of #45332Closes#45048
This commit adds an explicit error message when a create index request
contains a settings key that is not a json object. Prior to this change
the user would be given a ClassCastException with no explanation of what
went wrong.
closes#45126
The current idiom is to have the InternalAggregator find all the
buckets sharing the same key, put them in a list, get the first bucket
and ask that bucket to reduce all the buckets (including itself).
This a somewhat confusing workflow, and feels like the aggregator should
be reducing the buckets (since the aggregator owns the buckets), rather
than asking one bucket to do all the reductions.
This commit basically moves the `Bucket.reduce()` method to the
InternalAgg and renames it `reduceBucket()`. It also moves the
`createBucket()` (or equivalent) method from the bucket to the
InternalAgg as well.
This commit adds CNAME reporting for transport.publish_address same way
it's done for http.publish_address.
Relates #32806
Relates #39970
(cherry picked from commit e0a2558a4c3a6b6fbfc6cd17ed34a6f6ef7b15a9)
* Since we're buffering network reads to the heap and then deserializing them it makes no sense to buffer a message that is 90% of the heap size since we couldn't deserialize it anyway
* I think `30%` is a more reasonable guess here given that we can reasonably assume that the deserialized message will be larger than the serialized message itself and processing it will take additional heap as well
When a persistent task attempts to register an allocated task locally,
this creates the Task object and starts tracking it locally. If there
is a failure while initializing the task, this is handled by a catch
and subsequent error handling (canceling, unregistering, etc).
But if the task fails to be created because an exception is thrown
in the tasks ctor, this is uncaught and fails the cluster update
thread. The ramification is that a persistent task remains in the
cluster state, but is unable to create the allocated task, and the
exception prevents other tasks "after" the poisoned task from starting
too.
Because the allocated task is never created, the cancellation tools
are not able to remove the persistent task and it is stuck as a
zombie in the CS.
This commit adds exception handling around the task creation,
and attempts to notify the master if there is a failure (so the
persistent task can be removed). Even if this notification fails,
the exception handling means the rest of the uninitialized tasks
can proceed as normal.
* Painless generates a ton of duplicate strings and empty `Hashmap` instances wrapped as unmodifiable
* This change brings down the static footprint of Painless on an idle node by 20MB (after running the PMC benchmark against said node)
* Since we were looking into ways of optimizing for smaller node sizes I think this is a worthwhile optimization
Moves methods added in #44213 and uses them to configure the port range
for `ExternalTestCluster` too.
These were still using `9300-9400` ( teh default ) and running into
races.
* Fixing this for two reasons:
1. Why not verify that the seed we wrote is actually there when we can
2. The AWS S3 SDK started to log a bunch of WARN messages about not fully reading the stream now that we started to abuse the read blob as an `exists` check after removing that method from the blob container
* Introduce Spatial Plugin (#44389)
Introduce a skeleton Spatial plugin that holds new licensed features coming to
Geo/Spatial land!
* [GEO] Refactor DeprecatedParameters in AbstractGeometryFieldMapper (#44923)
Refactor DeprecatedParameters specific to legacy geo_shape out of
AbstractGeometryFieldMapper.TypeParser#parse.
* [SPATIAL] New ShapeFieldMapper for indexing cartesian geometries (#44980)
Add a new ShapeFieldMapper to the xpack spatial module for
indexing arbitrary cartesian geometries using a new field type called shape.
The indexing approach leverages lucene's new XYShape field type which is
backed by BKD in the same manner as LatLonShape but without the WGS84
latitude longitude restrictions. The new field mapper builds on and
extends the refactoring effort in AbstractGeometryFieldMapper and accepts
shapes in either GeoJSON or WKT format (both of which support non geospatial
geometries).
Tests are provided in the ShapeFieldMapperTest class in the same manner
as GeoShapeFieldMapperTests and LegacyGeoShapeFieldMapperTests.
Documentation for how to use the new field type and what parameters are
accepted is included. The QueryBuilder for searching indexed shapes is
provided in a separate commit.
* [SPATIAL] New ShapeQueryBuilder for querying indexed cartesian geometry (#45108)
Add a new ShapeQueryBuilder to the xpack spatial module for
querying arbitrary Cartesian geometries indexed using the new shape field
type.
The query builder extends AbstractGeometryQueryBuilder and leverages the
ShapeQueryProcessor added in the previous field mapper commit.
Tests are provided in ShapeQueryTests in the same manner as
GeoShapeQueryTests and docs are updated to explain how the query works.
* It's in the title, follow up to #45233
* Flatten more listeners into `StepListener`
* Remove duplication from repo and index bootstrap and asserting that the steps execute successfully
* If `counter.onResult` throws an exception we might leak a transport task because the failure is not handled as a phase failure (instead it bubbles up in the transport service eventually hitting the `onFailure` callback again and couting down the `counter` twice).
Co-authored-by: Jim Ferenczi <jim.ferenczi@elastic.co>
Currently, when adding a new mapping, we attempt to parse + merge it before
checking whether its top-level document type matches the existing type. So when
a user attempts to introduce a new mapping type, we may give a confusing error
message around merging instead of complaining that it's not possible to add
more than one type ("Rejecting mapping update to [my-index] as the final
mapping would have more than 1 type...").
This PR moves the type validation to the start of
`MetaDataMappingService#applyRequest` so that we make sure the type matches
before performing any mapper merging.
We already partially addressed this issue in #29316, but the tests there
focused on `MapperService` and did not catch this problem with end-to-end
mapping updates.
Addresses #43012.
We accidentally introduced this bug when adding a typeless version of the
rollover request. The bug is not present if include_type_name is set to true.
The previous hasProcessors method would validate if a processor was
present within a pipeline, but would not return the contents of the
processors. This does not allow a consumer to inspect the processor for
specific metadata. The method now returns the list of processors based
on the class of the processor passed in.
Because auto-date-histo can perform multiple reductions while
merging buckets, we need to ensure that the intermediate reductions
are done with a `finalReduce` set to false to prevent Pipeline aggs
from generating their output.
Once all the buckets have been merged and the output is stable,
a mostly-noop reduction can be performed which will allow pipelines
to generate their output.
This commit makes sure that mapping parameters to `CreateIndex` and
`PutIndexTemplate` are keyed by the type name.
`IndexCreationTask` expects mappings to be keyed by the type name.
It asserts this for template mappings but not for the mappings in the request.
The `CreateIndexRequest` and `RestCreateIndexAction` mostly make it sure
that the mapping is keyed by a type name, but not always.
When building the create-index request outside of the REST handler, there are
a few methods to set the mapping for the request. Some of them add the type
name some of them do not.
For example, `CreateIndexRequest#mapping(String type, Map<String, ?> source)`
adds the type name, but
`CreateIndexRequest#mapping(String type, XContentBuilder source)` does not.
This PR asserts the type name in the request mapping inside `IndexCreationTask`
and makes all `CreateIndexRequest#mapping` methods add the type name.
testShouldFlushAfterPeerRecovery was added #28350 to make sure the
flushing loop triggered by afterWriteOperation eventually terminates.
This test relies on the fact that we call afterWriteOperation after
making changes in translog. In #44756, we roll a new generation in
RecoveryTarget#finalizeRecovery but do not call afterWriteOperation.
Relates #28350
Relates #45073
Today, if an operation-based peer recovery occurs, we won't trim
translog but leave it as is. Some unacknowledged operations existing in
translog of that replica might suddenly reappear when it gets promoted.
With this change, we ensure trimming translog above the starting
sequence number of phase 2. This change can allow us to read translog
forward.
* Follow up to #44949
* Stop using a special code path for multi-line JSON and instead handle its detection like that of other XContent types when creating the request
* Only leave a single path that holds a reference to the full REST request
* In the next step we can move the copying of request content to happen before the actual request handling and make it conditional on the handler in question to stop copying bulk requests as suggested in #44564
* Reduces complicated callback relations in `testSuccessfulSnapshotAndRestore` to flat steps of sequential actions
* Will refactor the other tests in this suit as a follow up
* This format certainly makes it easier to create more complicated tests that involve multiple subsequent snapshots as it would allow adding loops
When having a cluster state from 6.x, display the metadata version as the cluster state version.
Avoids confusion where a cluster state from 6.x is displayed as version 0 even if has some actual
content.
Currently the msearch api is used to execute buffered search requests;
however the msearch api doesn't deal with search requests in an intelligent way.
It basically executes each search separately in a concurrent manner.
This api reuses the msearch request and response classes and executes
the searches as one request in the node holding the enrich index shard.
Things like engine.searcher and query shard context are only created once.
Also there are less layers than executing a regular msearch request. This
results in an interesting speedup.
Without this change, in a single node cluster, enriching documents
with a bulk size of 5000 items, the ingest time in each bulk response
varied from 174ms to 822ms. With this change the ingest time in each
bulk response varied from 54ms to 109ms.
I think we should add a change like this based on this improvement in ingest time.
However I do wonder if instead of doing this change, we should improve
the msearch api to execute more efficiently. That would be more complicated
then this change, because in this change the custom api can only search
enrich index shards and these are special because they always have a single
primary shard. If msearch api is to be improved then that should work for
any search request to any indices. Making the same optimization for
indices with more than 1 primary shard requires much more work.
The current change is isolated in the enrich plugin and LOC / complexity
is small. So this good enough for now.
Today if a shard is not fully allocated we maintain a retention lease for a
lost peer for up to 12 hours, retaining all operations that occur in that time
period so that we can recover this replica using an operations-based recovery
if it returns. However it is not always reasonable to perform an
operations-based recovery on such a replica: if the replica is a very long way
behind the rest of the replication group then it can be much quicker to perform
a file-based recovery instead.
This commit introduces a notion of "reasonable" recoveries. If an
operations-based recovery would involve copying only a small number of
operations, but the index is large, then an operations-based recovery is
reasonable; on the other hand if there are many operations to copy across and
the index itself is relatively small then it makes more sense to perform a
file-based recovery. We measure the size of the index by computing its number
of documents (including deleted documents) in all segments belonging to the
current safe commit, and compare this to the number of operations a lease is
retaining below the local checkpoint of the safe commit. We consider an
operations-based recovery to be reasonable iff it would involve replaying at
most 10% of the documents in the index.
The mechanism for this feature is to expire peer-recovery retention leases
early if they are retaining so much history that an operations-based recovery
using that lease would be unreasonable.
Relates #41536
CellIdSource is a helper ValuesSource that encodes GeoPoint
into a long-encoded representation of the grid bucket the point
is associated with. This complicates thing as usage evolves to
support shapes that are associated with more than one bucket ordinal.
Today the test waits for one of the shards to be blocked, but this does not
mean that the block has been applied on all nodes, so a subsequent indexing
operation may still go through.
Fixes#45338
The client and remote hit sources had each their own retry mechanism,
which would do the same. Supporting resiliency we would have to expand
on the retry mechanisms and as a preparation for that, the retry
mechanism is now shared such that each sub class is only responsible for
sending requests and converting responses/failures to common format.
Part of #42612
Refreshes happening during indexing can result differen segment counts and
slightly skewed term statistics, which in turn has the potential to change
suggestion output slightly. In order to prevent this, disable refresh for the
affected tests.
Closes#43261
`newSearcher()` from lucene can randomly choose index readers which
are not compatible with our tests, like ParallelCompositeReader.
The `newIndexSearcher()` method on AggregatorTestCase is a wrapper
similar to newSearcher but compatible with our tests
This commit adds a helper method to the ingest service allowing it to
inspect a pipeline by id and verify the existence of a processor in the
pipeline. This work exposed a potential bug in that some processors
contain inner processors that are passed in at instantiation. These
processors needed a common way to expose their inner processors, so the
WrappingProcessor was created in order to expose the inner processor.
If a node exceeds the flood-stage disk watermark then we add a block to all of
its indices to prevent further writes as a last-ditch attempt to prevent the
node completely exhausting its disk space. However today this block remains in
place until manually removed, and this block is a source of confusion for users
who current have ample disk space and did not even realise they nearly ran out
at some point in the past.
This commit changes our behaviour to automatically remove this block when a
node drops below the high watermark again. The expectation is that the high
watermark is some distance below the flood-stage watermark and therefore the
disk space problem is truly resolved.
Fixes#39334
The reason field of DefaultShardOperationFailedException is lost during serialization.
This is sad because this field is checked for nullity during xcontent generation and it
means that the cause won't be included in the generated xcontent and won't be
printed in two REST API responses (Close Index API and Indices Shard Stores API).
This commit simply restores the reason from the cause during deserialization.
Adds a tighter threshold for logging a warning about slowness in the
`MasterService` instead of relying on the cluster service's 30-second warning
threshold. This new threshold applies to the computation of the cluster state
update in isolation, so we get a warning if computing a new cluster state
update takes longer than 10 seconds even if it is subsequently applied quickly.
It also applies independently to the length of time it takes to notify the
cluster state tasks on completion of publication, in case any of these
notifications holds up the master thread for too long.
Relates #45007
Backport of #45086
This commit adds a deprecation warning in 7.x for the Force Merge API
when both only_expunge_deletes and max_num_segments are set in a request.
Relates #44761
This commit applies a normalization process to environment paths, both
in how they are stored internally, also their settings values. This
normalization is done via two means:
- we make the paths absolute
- we remove redundant name elements from the path (what Java calls
"normalization")
This change ensures that when we compare and refer to these paths within
the system, we are using a common ground. For example, prior to the
change if the data path was relative, we would not compare it correctly
to paths from disk usage. This is because the paths in disk usage were
being made absolute.
Uses JDK 11's per-socket configuration of TCP keepalive (supported on Linux and Mac), see
https://bugs.openjdk.java.net/browse/JDK-8194298, and exposes these as transport settings.
By default, these options are disabled for now (i.e. fall-back to OS behavior), but we would like
to explore whether we can enable them by default, in particular to force keepalive configurations
that are better tuned for running ES.
This adjusts the `buckets_path` parser so that pipeline aggs can
select specific buckets (via their bucket keys) instead of fetching
the entire set of buckets. This is useful for bucket_script in
particular, which might want specific buckets for calculations.
It's possible to workaround this with `filter` aggs, but the workaround
is hacky and probably less performant.
- Adjusts documentation
- Adds a barebones AggregatorTestCase for bucket_script
- Tweaks AggTestCase to use getMockScriptService() for reductions and
pipelines. Previously pipelines could just pass in a script service
for testing, but this didnt work for regular aggs. The new
getMockScriptService() method fixes that issue, but needs to be used
for pipelines too. This had a knock-on effect of touching MovFn,
AvgBucket and ScriptedMetric
Introduce shift field to MovingFunction aggregation.
By default, shift = 0. Behavior, in this case, is the same as before.
Increasing shift by 1 moves starting window position by 1 to the right.
To simply include current bucket to the window, use shift = 1
For center alignment (n/2 values before and after the current bucket), use shift = window / 2
For right alignment (n values after the current bucket), use shift = window.
* Resolve TODO in `readString` by moving to reading chunks of `byte[]` instead of going byte by byte
* Motivated by `readString` showing up as a significant user of CPU time on the IO thread in Rally PMC benchmark
* Benchmarking this:
* Could not reproduce a slowdown in the potential worst case (one or two non-ascii chars) since in this case the cost of creating the string itself exceeds the read times anyway
* Speedup for 50%+ for reading 200 char ascii strings from `ByteBuf` or pages bytes backed streams
* Longer strings obviously get bigger speedups
* More ascii chars -> more speedup
This commit switches to using the full hash to build into the JAR
manifest, which is used in node startup and the REST main action to
display the build hash.
Currently in the transport-nio work we connect and bind channels on the
a thread before the channel is registered with a selector. Additionally,
it is at this point that we set all the socket options. This commit
moves these operations onto the event-loop after the channel has been
registered with a selector. It attempts to set the socket options for a
non-server channel at registration time. If that fails, it will attempt
to set the options after the channel is connected. This should fix
#41071.
Introduce shift field to MovingFunction aggregation.
By default, shift = 0. Behavior, in this case, is the same as before.
Increasing shift by 1 moves starting window position by 1 to the right.
To simply include current bucket to the window, use shift = 1
For center alignment (n/2 values before and after the current bucket), use shift = window / 2
For right alignment (n values after the current bucket), use shift = window.
Today we recover a replica by copying operations from the primary's translog.
However we also retain some historical operations in the index itself, as long
as soft-deletes are enabled. This commit adjusts peer recovery to use the
operations in the index for recovery rather than those in the translog, and
ensures that the replication group retains enough history for use in peer
recovery by means of retention leases.
Reverts #38904 and #42211
Relates #41536
Backport of #45136 to 7.x.
* Stop Passing Around REST Request in Multiple Spots
* Motivated by #44564
* We are currently passing the REST request object around to a large number of places. This works fine since we simply copy the full request content before we handle the rest itself which is needlessly hard on GC and heap.
* This PR removes a number of spots where the request is passed around needlessly. There are many more spots to optimize in follow-ups to this, but this one would already enable bypassing the request copying for some error paths in a follow up.
Sparse role queries are executed differently than other queries in order
to account for the fact that most of the documents are filtered from search.
However this special execution does not set the scorer for the query so any
collector that needs to access the score of a document fails with an NPE.
This change fixed this bug by setting the scorer before collecting any hits
when intersecting the main query and the sparse role.
The Settings#processSetting method is intended to take a setting map and add a
setting to it, adjusting the keys as it goes in case of "conflicts" where the
new setting implies an object where there is currently a string, or vice
versa. processSetting was failing in two cases: adding a setting two levels
under a string, and adding a setting two levels under a string and four levels
under a map. This commit fixes the bug and adds test coverage for the
previously faulty edge cases.
* fix issue #43791 about settings
* add unit test in testProcessSetting()
We keep adding the current primary term to operations for which we do not assign a sequence
number. This does not make sense anymore as all operations which we care about have
sequence numbers now. The goal of this commit is to clean things up in InternalEngine and
reduce the complexity.
* There's no need to have the trie iterator hold another reference to the request object (which could be huge, see #44564)
* Also removed unused boolean field from trie node
Previously, we use ThreadPoolStats to ensure that the scheduledRefresh
triggered by the internal refresh setting update is executed before we
index a new document. With that change (#40387), this test did not fail for
the last 3 months. However, using ThreadPoolStats is not entirely watertight
as both "active" and "queue" count can be 0 in a very small interval
when ThreadPoolExecutor pulls a task from the queue but before marking
the corresponding worker as active (i.e., lock it).
Closes#39565
Adds a `waitForEvents(Priority.LANGUID)` to the cluster health request in
`ESIntegTestCase#waitForRelocation()` to deal with the case that this health
request returns successfully despite the fact that there is a pending reroute task which
will relocate another shard.
Relates #44433Fixes#45003
Today the lag detector may remove nodes from the cluster if they fail to apply
a cluster state within a reasonable timeframe, but it is rather unclear from
the default logging that this has occurred and there is very little extra
information beyond the fact that the removed node was lagging. Moreover the
only forewarning that the lag detector might be invoked is a message indicating
that cluster state publication took unreasonably long, which does not contain
enough information to investigate the problem further.
This commit adds a good deal more detail to make the issues of slow nodes more
prominent:
- after 10 seconds (by default) we log an INFO message indicating that a
publication is still waiting for responses from some nodes, including the
identities of the problematic nodes.
- when the publication times out after 30 seconds (by default) we log a WARN
message identifying the nodes that are still pending.
- the lag detector logs a more detailed warning when a fatally-lagging node is
detected.
- if applying a cluster state takes too long then the cluster applier service
logs a breakdown of all the tasks it ran as part of that process.
* Dry up code for creating simple `ActionRunnable` a little
* Shorten some other code around `ActionListener` usage, in particular
when wrapping it in a `TransportResponseListener`
* As a result of #44096 this test shouldn't fail anymore on `master` and `7.4`+ so we should reenable it there
* For older versions we won't backport that change so the tests should stay disabled there
* Closes#44671
Reading up on #33673 it looks like parts of these tests have been reworked and
there is no intention to fix the remains on 7.x, so I think we can remove the
entire test.
The task that TaskManager#register returns cannot be null. The method
enforces that it is not null after calling request#createTask. It is
then needless to check for null in the listener later. Also, added the
call to the delegate listener in a finally block, just to make sure.
* We shouldn't be recreating wrapped REST handlers over and over for every request. We only use this hook in x-pack and the wrapper there does not have any per request state.
This is inefficient and could lead to some very unexpected memory behavior
=> I made the logic create the wrapper on handler registration and adjusted the x-pack wrapper implementation to correctly forward the circuit breaker and content stream flags
When finding nodes in a connected cluster for cross cluster
search the requests to get cluster state on the connected
cluster should be made in the system context because
logically they are equivalent to checking a single detail
in the local cluster state and should not require that the
user who made the request that is using this method in its
implementation is authorized to view the entire cluster
state.
Fixes#43974
Today closing a `ClusterNode` in an `AbstractCoordinatorTestCase` uses
`onNode()` so has no effect if the node is not in the current list of nodes.
It also discards the `Runnable` it creates without having run it, so has no
effect anyway.
This commit makes these tests much stricter about properly closing the nodes
started during `Coordinator` tests, by tracking the persisted states that are
opened, and adds an assertion to catch the trappy requirement that the closing
node still belongs to the cluster.
This commit fixes a bug when a deferred aggregator tries to early terminate the collection. In such case the CollectionTerminatedException is not caught and
the search fails on the shard. This change makes sure that we catch the exception in order to continue the deferred collection on the next leaf.
Fixes#44909
Replaying operations from the local translog must never fail as those
operations were processed successfully on the primary before and the
mapping is up to update already. This change removes leniency during
resetting engine from translog in IndexShard and InternalEngine.
This is a temporary fix during the Joda to Java datetime transition. This will
implicitly cast a JodaCompatibleZonedDateTime to a ZonedDateTime for
both def and static types. This is necessary to insulate users from needing
to know about JodaCompatibleZonedDateTime explicitly.
TaskListener accepts today Throwable in its onFailure method. Though
looking at where it is called (TransportAction), it can never be
notified of a Throwable.
This commit changes the signature of TaskListener#onFailure so that it
accepts an `Exception` rather than a `Throwable` as second argument.
We currently block the transport thread on startup, which has caused test failures. I think this is
some kind of deadlock situation. I don't think we should even block a transport thread, and
there's also no need to do so. We can just reject requests as long we're not fully set up. Note
that the HTTP layer is only started much later (after we've completed full start up of the
transport layer), so that one should be completely unaffected by this.
Closes#41745
Fixes an issue where a call to openConnection was not properly guarded, allowing an exception
to bubble up to the uncaught exception handler, causing test failures.
Closes#44912
SimpleClusterStateIT testIndicesOptions failed in #44817 because it tries to close
an index at the beginning of the test. With random index settings, it is possible that
the index has a high number of shards (10) and replicas (1), which means that on
CI this index can take time to be fully allocated.
The close index request can fail in the case where replicas are still recovering operations.
Thiscommit adds a simple ensureGreen() at the beginning of the test to be sure that all
replicas are started before trying to close the index.
closes#44817
The test ShrinkIndexIT.testShrinkThenSplitWithFailedNode sometimes fails
because the resize operation is not acknowledged (see #44736). This resize
operation creates a new index "splitagain" and it results in a cluster state
update (TransportResizeAction uses MetaDataCreateIndexService.createIndex()
to create the resized index). This cluster state update is expected to be
acknowledged by all nodes (see IndexCreationTask.onAllNodesAcked()) but
this is not always true: the data node that was just stopped in the test before
executing the resize operation might still be considered as a "faulty" node
(and not yet removed from the cluster nodes) by the FollowersChecker. The
cluster state is then acked on all nodes but one, and it results in a non
acknowledged resize operation.
This commit adds an ensureStableCluster() check after stopping the node in
the test. The goal is to ensure that the data node has been correctly removed
from the cluster and that all nodes are fully connected to each before moving
forward with the resize operation.
Closes#44736
Today the processors setting is permitted to be set to more than the
number of processors available to the JVM. The processors setting
directly sizes the number of threads in the various thread pools, with
most of these sizes being a linear function in the number of
processors. It doesn't make any sense to set processors very high as the
overhead from context switching amongst all the threads will overwhelm,
and changing the setting does not control how many physical CPU
resources there are on which to schedule the additional threads. We have
to draw a line somewhere and this commit deprecates setting processors
to more than the number of available processors. This is the right place
to draw the line given the linear growth as a function of processors in
most of the thread pools, and that some are capped at the number of
available processors already.
With this change, we will return primary_term and seq_no of the current
document if an update is detected as a noop. We already return the
version; hence we should also return seq_no and primary_term.
Relates #42497
Adds an API to clone an index. This is similar to the index split and shrink APIs, just with the
difference that the number of primary shards is kept the same. In case where the filesystem
provides hard-linking capabilities, this is a very cheap operation.
Indexing cloning can be done by running `POST my_source_index/_clone/my_target_index` and it
supports the same options as the split and shrink APIs.
Closes#44128
While joda no longer exists in the apis for 7.x, the compatibility layer
still exists with helper methods mimicking the behavior of joda for
ZonedDateTime objects returned for date fields in scripts. This layer
was originally intended to be removed in 7.0, but is now likely to exist
for the lifetime of 7.x.
This commit adds missing methods from ChronoZonedDateTime to the compat
class. These methods were not part of joda, but are needed to act like a
real ZonedDateTime.
relates #44411
This PR makes two changes to FetchSourceSubPhase when _source is disabled and
we're in a nested context:
* If no source filters are provided, return early to avoid an NPE.
* If there are source filters, make sure to throw an exception.
The behavior was chosen to match what currently happens in a non-nested context.
Refactors GeoShapeQueryBuilder to derive from a new AbstractGeometryQueryBuilder that provides common parsing and build logic for spatial geometries. This will allow development of custom geometry queries by extending AbstractGeometryQueryBuilder preventing duplication of common spatial query logic.
The problem is that RemoteClusterConnection closes the connection manager asynchronously, which races with the threadpool being shutdown at the end of the test.
Closes#44339Closes#44610
Removes unnecessary now timeline decompositions from shape builders
and deprecates ShapeBuilders in QueryBuilder in favor of libs/geo
shapes.
Relates to #40908
This test can fail (super-rarely) if it generates a list of length 11
containing a duplicate, because the `.distinct()` reduces the list length to 10
and then it is not abbreviated any more. This change generalises the test to
cover lists of any random length.
* In both fake connection validators we were potentially executing the listener twice. This lead to the situation that the locking via `connectionLock` that ensures that each listener is only executed once ever
would fail and the lister would run twice (in which case the listeners for that node are already `null` and we get an NPE)
* The fact that two different tests fail is due to the fact that we weren't safely shutting down the threadpool which meant the the task that trips the assertion (on the generic pool) would leak into the next test and fail it
* Closes#44758
We have some old permissions lying around, granted to untrusted code
from the days of yore when we supported Groovy and Javascript
scripting. This commit removes these stale permissions.
Today our systemd service defaults to a service type of simple. This
means that systemd assumes Elasticsearch is ready as soon as the
ExecStart (bin/elasticsearch) process is forked off. This means that the
service appears ready long before it actually is, so before it is ready
to receive requests. It also means that services that want to depend on
Elasticsearch being ready to start can not as there is not a reliable
mechanism to determine this. This commit changes the service type to
notify. This requires that Elasticsearch sends a notification message
via libsystemd sd_notify method. This commit does that by using JNA to
invoke this native method. Additionally, we use this integration to also
notify systemd when we are stopping.
* Fix this test randomly failing when running into async translog persistence edge case and failing to successfully close index
* Also, slightly improve debug logging on close failure
* Closes#44681
Switches to more robust way of generating random test geometries by
reusing lucene's GeoTestUtil. Removes duplicate random geometry
generators by moving them to the test framework.
Closes#37278
The `elasticsearch-node override-version` command fails if it cannot read the
existing node metadata file. However, it reads this file strictly and fails if
there are any unknown fields, which means it will not be useful if we add
another field in future.
This commit adds leniency to this command, allowing it to ignore any unknown
fields and proceed with the downgrade. A downgrade is already unsafe, and the
user is already copiously warned about this, so being lenient in this case does
not make things much worse.
Today when creating an index and checking cluster shard limits, we check
the number of shards before applying index templates. At this point, we
do not know the actual number of shards that will be used to create the
index. In a case when the defaults are used and a template would
override, we could be grossly underestimating the number of shards that
would be created, and thus incorrectly applying the limits. This commit
addresses this by checking the shard limits after applying index
templates.
We often start testing with early access versions of new Java
versions and this have caused minor issues in our tests
(i.e. #43141) because the version string that the JVM reports
cannot be parsed as it ends with the string -ea.
This commit changes how we parse and compare Java versions to
allow correct parsing and comparison of the output of java.version
system property that might include an additional alphanumeric
part after the version numbers
(see [JEP 223[(https://openjdk.java.net/jeps/223)). In short it
handles a version number part, like before, but additionally a
PRE part that matches ([a-zA-Z0-9]+).
It also changes a number of tests that would attempt to parse
java.specification.version in order to get the full version
of Java. java.specification.version only contains the major
version and is thus inappropriate when trying to compare against
a version that might contain a minor, patch or an early access
part. We know parse java.version that can be consistently
parsed.
Resolves#43141
This commit removes the method AllocationService.reroute(ClusterState, String, boolean)
in favor of AllocationService.reroute(ClusterState, String).
Motivations are:
there are already 3 other reroute methods in this class
this method is always called with the debug parameter set to false
almost all tests use the method reroute(ClusterState, String)
* As a result of #44665 the collections returned by the deserialization methods on `StreamInput` may be either mutable or immutable now,
this PR adds documentation for that fact
In 7.x we cannot start a new master-eligible node before the cluster has formed
since we first try and update minimum_master_nodes and this is blocked. This
commit changes the test to start a data-only node so that no such adjustment is
necessary.
Relates #44685
Add more logging to indexRandom
Seems that asynchronous indexing from indexRandom sometimes indexes
the same document twice, which will mess up the expected score calculations.
For example, indexing:
{ "index" : {"_id" : "1" } }
{"important" :"phrase match", "less_important": "nothing important"}
{ "index" : {"_id" : "2" } }
{"important" :"nothing important", "less_important" :"phrase match"}
Produces the expected scores: 13.8 for doc1, and 1.38 for doc2
indexing:
{ "index" : {"_id" : "1" } }
{"important" :"phrase match", "less_important": "nothing important"}
{ "index" : {"_id" : "2" } }
{"important" :"nothing important", "less_important" :"phrase match"}
{ "index" : {"_id" : "3" } }
{"important" :"phrase match", "less_important": "nothing important"}
Produces scores: 9.4 for doc1, and 1.96 for doc2 which are found in the
error logs.
Relates to #43144
Fields in JSON logs should be an escaped JSON fields. It is a broken json value at the moment
"stats": "["group1", "group2"]", -> "stats": "[\"group1\", \"group2\"]",
This should later be refactored into a JSON array of strings (the same as types in 7.x)
Today we block access to the pending tasks API before the cluster has recovered
its state. There's no real need to do so, and the master does meaningful work
even before performing state recovery so it might sometimes be useful to allow
access to this API. This commit changes this API to ignore all cluster blocks.
Fixes#44652
The field has to be defined in log4j2.properties and should be an
escaped JSON for now (it is a broken JSON at the moment). This should later be refactored into a JSON array
of strings.
Deprecation logger was filtering log entries by key, that means that if two log messages with the same key are logged from different users, then the second log messages will be filtered.
This change allows to log deprecation message with the same key by different users.
relates #41354
backport #44587
* It seems redundant to synchronize here and check that the map hasn't checked via the `isRunning` under the mutex
* The map won't change if under the mutex that locks on all the updates to it
* Without the mutex it's very unlikely to change inside the method call relative to the likelihood of changing until the generic pool where we check for `isRunning` again anyway
-> just remove the synchronization (it's on the IO loop) and check since we do check the running state on the generic pool under the mutex anyway when we actually fail it
We have to copy the field names otherwise we either have a handle of a
list that a caller might mutate or we might mutate when they aren't
expecting it, or worse, a handle of a list that is not mutable (and we
end up mutating the list).
Relates #44665
* Mute failing test
tracked in #44552
* mute EvilSecurityTests
tracking in #44558
* Fix line endings in ESJsonLayoutTests
* Mute failing ForecastIT test on windows
Tracking in #44609
* mute BasicRenormalizationIT.testDefaultRenormalization
tracked in #44613
* fix mute testDefaultRenormalization
* Increase busyWait timeout windows is slow
* Mute failure unconfigured node name
* mute x-pack internal cluster test windows
tracking #44610
* Mute JvmErgonomicsTests on windows
Tracking #44669
* mute SharedClusterSnapshotRestoreIT testParallelRestoreOperationsFromSingleSnapshot
Tracking #44671
* Mute NodeTests on Windows
Tracking #44256
* We only had the `size == 0` optimization in some but not all spots of deserializing collections in this class, fixed the remaining spots.
* Also fixed the a similar spot when deserializing `ThreadContextStruct` that could now be simplified (it was apparently doing it's own version of this optimization for the first map it deserialized before ... but not for the second map -> made it not instantiate anything if both maps are empty since it's always the same object here anyway)
* Optimize some StreamOutput Operations
* Writing numbers byte by byte adds a lot of unnecessary bounds checks to serialization
* Serializing to a threadlocal `byte[]` instead and bulk writing gives about a 50% speedup on `long` and `vlong` (for large numbers) writes and 30% for `int`, `vint` on Linux on an i9
* Using a threadlocal of the maximum string buffer size we used to allocate before also removes allocations when writing strings in general since we now never have to allocate a `byte[]` for that
* And don't have to GC one either resolving the TODO removed here
This commit converts all remaining TransportRequest and
TransportResponse classes to implement Writeable, and disallows
Streamable implementations.
relates #34389
* We shouldn't just swallow the interrupt here quietly and keep going on the IO thread
* Currently interrupt continues here just the same way an invocation of `acceptIncomingRequests` woudl have made things continue
* Relates #44610
NamedAnalyzer should return the same AnalysisMode than any custom analyzer it
wraps, otherwise AnalysisMode.ALL. This used to be only CustomAnalyzer in the
past, but with the introduction of the ReloadableCustomAnalyzer this needs to be
added as an option where the analysis mode gets propagated.
Closes#44625
This commit removes support for the translog checkpoint format from versions
before 6.0.0 since 7.x versions are incompatible with indices from these
versions.
Relates #44720Fixes#44210
By mistake in 7.x types field was removed from slow logs. Types are
still present in that version, so this have to be present as a JSON
field
relates #41354
backport that was causing this #44178
This commit converts several utility classes that implement Streamable
to have StreamInput constructors. It also adds a default version of
readFrom to Streamable so that overriding to throw UOE is not necessary.
relates #34389
This commit converts several more classes from streamable to writeable
in server, mostly within the o.e.index and o.e.persistent packages.
relates #34389
This commit converts subclasses of ShardOperationFailedException to
implement ctors with StreamInput instead of readFrom. It also simplifies
IndicesShardStoresResponse.Failure to serialize its shardId after the
super data.
relates #34389
A tool to work with snapshots.
Co-authored by @original-brownbear.
This commit adds snapshot tool and the single command cleanup, that
cleans up orphaned files for S3.
Snapshot tool lives in x-pack/snapshot-tool.
(cherry picked from commit fc4aed44dd975d83229561090f957a95cc76b287)
Today we reroute the cluster as part of the process of starting a shard, which
runs at `URGENT` priority. In large clusters, rerouting may take some time to
complete, and this means that a mere trickle of shard-started events can cause
starvation for other, lower-priority, tasks that are pending on the master.
However, it isn't really necessary to perform a reroute when starting a shard,
as long as one occurs eventually. This commit removes the inline reroute from
the process of starting a shard and replaces it with a deferred one that runs
at `NORMAL` priority, avoiding starvation of higher-priority tasks.
Backport of #44433 and #44543.
Multi search accepts multiple search requests and runs them as
independent requests, each one as part of their own search task. Today
they don't get associated though with their parent multi search task,
which would be useful to monitor which msearch a certain search was part
of, if any, and also to cancel all of the sub-requests in case the
parent msearch gets cancelled (though this will also require making
the multi search task cancellable as a follow-up).
Today the long list of `BUILT_IN_CLUSTER_SETTINGS` is indented differently
between `master` and `7.x`. This sometimes makes backporting painful. This
commit adjusts the indentation of earlier branches to match that in `master`.
* Many messages deserialized from a `StreamInput` only contain short strings, some use-cases of instantiating a `StreamInput` don't deserialize any strings
* Don't allocate `CharsRef` for small strings to save some allocations (especially on the IO threads)
* Lazily allocate a larger `CharsRef` if needed for larger strings like we did before and have it live as long as the `StreamInput` like before as well
This commit deprecates all constructors of HandledTransportAction
that take in a Supplier instead of a Writeable.Reader for response
objects.
in addition to the deprecation, the following modules were updated to
leverage Writeable
- modules:ingest-common
- modules:lang-mustache
relates #34389.
this commit removes usage of the deprecated
constructor with a single argument and no Writeable.Reader.
The purpose of this is to reduce the boilerplate necessary for
properly implementing a new action, as well as reducing the
chances of using the incorrect super constructor while classes
are being migrated to Writeable
relates #34389.
This commit converts all remaining ActionType response classes to
writeable in xpack core. It also converts a few from server which were
used by xpack core.
relates #34389
Today we have an annotation for controlling logging levels in
tests. This annotation serves two purposes, one is to control the
logging level used in tests, when such control is needed to impact and
assert the behavior of loggers in tests. The other use is when a test is
failing and additional logging is needed. This commit separates these
two concerns into separate annotations.
The primary motivation for this is that we have a history of leaving
behind the annotation for the purpose of investigating test failures
long after the test failure is resolved. The accumulation of these stale
logging annotations has led to excessive disk consumption. Having
recently cleaned this up, we would like to avoid falling into this state
again. To do this, we are adding a link to the test failure under
investigation to the annotation when used for the purpose of
investigating test failures. We will add tooling to inspect these
annotations, in the same way that we have tooling on awaits fix
annotations. This will enable us to report on the use of these
annotations, and report when stale uses of the annotation exist.
This commit adds constructors to AcknolwedgedRequest subclasses to
implement Writeable.Reader, and ensures all future subclasses implement
the same.
relates #34389
Large histories can be problematic and have the linearizability checker occasionally run OOM. As it's
very difficult to bound the size of the histories just right, this PR will let it instead run for 10 seconds
on large histories and then abort.
Closes#44429
Changes in #44187 introduced some optimization in the way shapes are
generated. These changes were not captured in GeoWKTShapeParserTests.
Relates #44187
Extracts dateline decomposition logic from ShapeBuilder into a separate
utility class that is used on the indexing side. The search side
will be handled as part of another PR at this time we will remove
the decomposition logic from ShapeBuilders as well. This PR also doesn't
change any existing logic including bugs.
Relates to #40908
Due to https://issues.apache.org/jira/browse/LUCENE-8916, when you
try to use a synonym filter with the index_phrases option on a text field,
you can end up with null values in a Phrase query, leading to weird
exceptions further down the querying chain. As a workaround, this commit
disables the index_phrases optimization for queries that produce token
graphs.
Fixes#43976
Zen 1 stops pinging threads in ZenDiscovery by calling Thread.interrupt(). This is incompatible with
the CancellableThreads that only allow threads to be interrupted through cancellation. The use of
CancellableThreads was introduced in #42844 and added to UnicastZenPing as part of the
backport, as both Zen1 and Zen2 share the same SeedHostsResolver implementation. This commit
effectively undoes the change in the backport while still allowing to share same implementation.
Closes#44425
BucketScript was using the old-style parser and could easily be
converted over to the newer static parser.
Also adds a test for GapPolicy enum serialization
Today we report an exception on a handshake failure (e.g. cluster name
mismatch) but the message does not include all the details of the mismatch. If
the mismatch is something subtle like `my-cluster` instead of `my_cluster` then
we cannot diagnose this from the message alone. This commit adds the details of
the local cluster to the message, along with the details of the remote cluster,
improving the utility of the exception message if reported in isolation.
* Fix Incorrect Uncompressed Error Handling in InboundMessage
* CompressorFactory.compressor does not throw uncompressed exception on uncompressed bytes, it merely returns `null` in this case if the bytes are at least XContent so the current catch and re-throw logic is dead code
* Made it work again by throwing on a `null` return so we get a real error message instead of an NPE
* We only use this method in one place in production code and can replace that with a read -> remove it to simplify the interface
* Keep it as an implementation detail in the Azure repository
In #44348 we changed the cluster health action so that it sometimes uses the
cluster state directly from the master service rather than from the cluster
applier. If the state is not recovered then this is inappropriate, because
prior to state recovery the state available to the cluster applier contains no
indices. This commit moves us back to using the state from the applier.
Fixes#44416.
Today when the cluster health changes the `AllocationService` reports at most
ten shards that were started or failed, and always ends its message with `...`
suggesting that the list is truncated. This commit adjusts these messages to be
clearer about whether the list is truncated or not. When debug logging is
enabled the list is not truncated; if the list is truncated then its length is
logged, and if it is not truncated then no `...` is included in the message.
This commit converts the request and response classes for broadcast
actions to implement ctors for Writeable.Reader and forces all future
implementations to implement the same.
relates #34389
This commit moves the config that stores Cors options into the server
package. Currently both nio and netty modules must have a copy of this
config. Moving it into server allows one copy and the tests to be in a
common location.
The contract for MappedFieldType#fielddataBuilder is to throw an
IllegalArgumentException if fielddata is not supported. The rank feature mappers
were instead throwing an UnsupportedOperationException, which caused
MappedFieldType#isAggregatable to fail.
The versioning of Update API doesn't rely on version number anymore (and
rather on sequence number). But in rest api level we ignored the
"version" and "version_type" parameter, so that the server cannot raise
the exception when whey were set.
This PR restores "version" and "version_type" parsing in Update Rest API
so that we can get the appropriate errors.
Relates to #42497
* Add Snapshot Lifecycle Management (#43934)
* Add SnapshotLifecycleService and related CRUD APIs
This commit adds `SnapshotLifecycleService` as a new service under the ilm
plugin. This service handles snapshot lifecycle policies by scheduling based on
the policies defined schedule.
This also includes the get, put, and delete APIs for these policies
Relates to #38461
* Make scheduledJobIds return an immutable set
* Use Object.equals for SnapshotLifecyclePolicy
* Remove unneeded TODO
* Implement ToXContentFragment on SnapshotLifecyclePolicyItem
* Copy contents of the scheduledJobIds
* Handle snapshot lifecycle policy updates and deletions (#40062)
(Note this is a PR against the `snapshot-lifecycle-management` feature branch)
This adds logic to `SnapshotLifecycleService` to handle updates and deletes for
snapshot policies. Policies with incremented versions have the old policy
cancelled and the new one scheduled. Deleted policies have their schedules
cancelled when they are no longer present in the cluster state metadata.
Relates to #38461
* Take a snapshot for the policy when the SLM policy is triggered (#40383)
(This is a PR for the `snapshot-lifecycle-management` branch)
This commit fills in `SnapshotLifecycleTask` to actually perform the
snapshotting when the policy is triggered. Currently there is no handling of the
results (other than logging) as that will be added in subsequent work.
This also adds unit tests and an integration test that schedules a policy and
ensures that a snapshot is correctly taken.
Relates to #38461
* Record most recent snapshot policy success/failure (#40619)
Keeping a record of the results of the successes and failures will aid
troubleshooting of policies and make users more confident that their
snapshots are being taken as expected.
This is the first step toward writing history in a more permanent
fashion.
* Validate snapshot lifecycle policies (#40654)
(This is a PR against the `snapshot-lifecycle-management` branch)
With the commit, we now validate the content of snapshot lifecycle policies when
the policy is being created or updated. This checks for the validity of the id,
name, schedule, and repository. Additionally, cluster state is checked to ensure
that the repository exists prior to the lifecycle being added to the cluster
state.
Part of #38461
* Hook SLM into ILM's start and stop APIs (#40871)
(This pull request is for the `snapshot-lifecycle-management` branch)
This change allows the existing `/_ilm/stop` and `/_ilm/start` APIs to also
manage snapshot lifecycle scheduling. When ILM is stopped all scheduled jobs are
cancelled.
Relates to #38461
* Add tests for SnapshotLifecyclePolicyItem (#40912)
Adds serialization tests for SnapshotLifecyclePolicyItem.
* Fix improper import in build.gradle after master merge
* Add human readable version of modified date for snapshot lifecycle policy (#41035)
* Add human readable version of modified date for snapshot lifecycle policy
This small change changes it from:
```
...
"modified_date": 1554843903242,
...
```
To
```
...
"modified_date" : "2019-04-09T21:05:03.242Z",
"modified_date_millis" : 1554843903242,
...
```
Including the `"modified_date"` field when the `?human` field is used.
Relates to #38461
* Fix test
* Add API to execute SLM policy on demand (#41038)
This commit adds the ability to perform a snapshot on demand for a policy. This
can be useful to take a snapshot immediately prior to performing some sort of
maintenance.
```json
PUT /_ilm/snapshot/<policy>/_execute
```
And it returns the response with the generated snapshot name:
```json
{
"snapshot_name" : "production-snap-2019.04.09-rfyv3j9qreixkdbnfuw0ug"
}
```
Note that this does not allow waiting for the snapshot, and the snapshot could
still fail. It *does* record this information into the cluster state similar to
a regularly trigged SLM job.
Relates to #38461
* Add next_execution to SLM policy metadata (#41221)
* Add next_execution to SLM policy metadata
This adds the next time a snapshot lifecycle policy will be executed when
retriving a policy's metadata, for example:
```json
GET /_ilm/snapshot?human
{
"production" : {
"version" : 1,
"modified_date" : "2019-04-15T21:16:21.865Z",
"modified_date_millis" : 1555362981865,
"policy" : {
"name" : "<production-snap-{now/d}>",
"schedule" : "*/30 * * * * ?",
"repository" : "repo",
"config" : {
"indices" : [
"foo-*",
"important"
],
"ignore_unavailable" : true,
"include_global_state" : false
}
},
"next_execution" : "2019-04-15T21:16:30.000Z",
"next_execution_millis" : 1555362990000
},
"other" : {
"version" : 1,
"modified_date" : "2019-04-15T21:12:19.959Z",
"modified_date_millis" : 1555362739959,
"policy" : {
"name" : "<other-snap-{now/d}>",
"schedule" : "0 30 2 * * ?",
"repository" : "repo",
"config" : {
"indices" : [
"other"
],
"ignore_unavailable" : false,
"include_global_state" : true
}
},
"next_execution" : "2019-04-16T02:30:00.000Z",
"next_execution_millis" : 1555381800000
}
}
```
Relates to #38461
* Fix and enhance tests
* Figured out how to Cron
* Change SLM endpoint from /_ilm/* to /_slm/* (#41320)
This commit changes the endpoint for snapshot lifecycle management from:
```
GET /_ilm/snapshot/<policy>
```
to:
```
GET /_slm/policy/<policy>
```
It mimics the ILM path only using `slm` instead of `ilm`.
Relates to #38461
* Add initial documentation for SLM (#41510)
* Add initial documentation for SLM
This adds the initial documentation for snapshot lifecycle management.
It also includes the REST spec API json files since they're sort of
documentation.
Relates to #38461
* Add `manage_slm` and `read_slm` roles (#41607)
* Add `manage_slm` and `read_slm` roles
This adds two more built in roles -
`manage_slm` which has permission to perform any of the SLM actions, as well as
stopping, starting, and retrieving the operation status of ILM.
`read_slm` which has permission to retrieve snapshot lifecycle policies as well
as retrieving the operation status of ILM.
Relates to #38461
* Add execute to the test
* Fix ilm -> slm typo in test
* Record SLM history into an index (#41707)
It is useful to have a record of the actions that Snapshot Lifecycle
Management takes, especially for the purposes of alerting when a
snapshot fails or has not been taken successfully for a certain amount of
time.
This adds the infrastructure to record SLM actions into an index that
can be queried at leisure, along with a lifecycle policy so that this
history does not grow without bound.
Additionally,
SLM automatically setting up an index + lifecycle policy leads to
`index_lifecycle` custom metadata in the cluster state, which some of
the ML tests don't know how to deal with due to setting up custom
`NamedXContentRegistry`s. Watcher would cause the same problem, but it
is already disabled (for the same reason).
* High Level Rest Client support for SLM (#41767)
* High Level Rest Client support for SLM
This commit add HLRC support for SLM.
Relates to #38461
* Fill out documentation tests with tags
* Add more callouts and asciidoc for HLRC
* Update javadoc links to real locations
* Add security test testing SLM cluster privileges (#42678)
* Add security test testing SLM cluster privileges
This adds a test to `PermissionsIT` that uses the `manage_slm` and `read_slm`
cluster privileges.
Relates to #38461
* Don't redefine vars
* Add Getting Started Guide for SLM (#42878)
This commit adds a basic Getting Started Guide for SLM.
* Include SLM policy name in Snapshot metadata (#43132)
Keep track of which SLM policy in the metadata field of the Snapshots
taken by SLM. This allows users to more easily understand where the
snapshot came from, and will enable future SLM features such as
retention policies.
* Fix compilation after master merge
* [TEST] Move exception wrapping for devious exception throwing
Fixes an issue where an exception was created from one line and thrown in another.
* Fix SLM for the change to AcknowledgedResponse
* Add Snapshot Lifecycle Management Package Docs (#43535)
* Fix compilation for transport actions now that task is required
* Add a note mentioning the privileges needed for SLM (#43708)
* Add a note mentioning the privileges needed for SLM
This adds a note to the top of the "getting started with SLM"
documentation mentioning that there are two built-in privileges to
assist with creating roles for SLM users and administrators.
Relates to #38461
* Mention that you can create snapshots for indices you can't read
* Fix REST tests for new number of cluster privileges
* Mute testThatNonExistingTemplatesAreAddedImmediately (#43951)
* Fix SnapshotHistoryStoreTests after merge
* Remove overridden newResponse functions that have been removed
* Fix compilation for backport
* Fix get snapshot output parsing in test
* [DOCS] Add redirects for removed autogen anchors (#44380)
* Switch <tt>...</tt> in javadocs for {@code ...}
* Follow up to #44165
* We should just catch all exceptions here and not return errors after the index-N update went through since a subsequent delete attempt by the user would fail with SnapshotMissingException since the snapshot now appears deleted. Also, `SnapshotException` isn't even thrown in the changed spot it seems in the first place and certainly not the only exception possible.
Today a cluster health request can wait on a selection of conditions, but it
does not guarantee that all of these conditions have ever held simultaneously
when it returns. More specifically, if a request sets `waitForEvents()` along
with some other conditions then Elasticsearch will respond when the master has
processed all the expected pending tasks _and then_ the cluster satisfied the
other conditions, but it may be that at the time the cluster satisfied the
other conditions there were undesired pending tasks again.
This commit adjusts the behaviour of `waitForEvents()` to wait for all the
required events to be processed and then, if the resulting cluster state does
not satisfy the other conditions, it will wait until there is a cluster state
that does and then retry the wait-for-events too.
Today the `BatchedRerouteService` submits its delayed reroute task at `HIGH`
priority, but in some cases a lower priority would be more appropriate. This
commit adds the facility to submit delayed reroute tasks at different
priorities, such that each submitted reroute task runs at a priority no lower
than the one requested. It does not change the fact that all delayed reroute
tasks are submitted at `HIGH` priority, but at least it makes this explicit.
This commit creates new base classes for master node actions whose
response types still implement Streamable. This simplifies both finding
remaining classes to convert, as well as creating new master node
actions that use Writeable for their responses.
relates #34389
Today we do not throw a `TranslogCorruptedException` in certain cases of
translog corruption, such as for a corrupted checkpoint file or when an
expected file (either checkpoint or translog) is completely missing. This means
that `elasticsearch-shard` will not truncate the translog in those cases.
This commit strengthens the translog corruption tests to corrupt and/or delete
both translog and checkpoint files, and ensures that a
`TranslogCorruptedException` is thrown in all cases. It also sometimes
simulates a recovery after a crash while rolling the translog generation,
including cases where the rolled checkpoint contains incorrect data.
It also adjusts (and renames) `RemoveCorruptedShardDataCommandIT.getDirs()` to
return only a single path, since in practice this was the only thing that could
happen and yet we were relying on its callers to verify this and not all
callers were doing so.
* Stronger Cleanup Shard Snapshot Directory on Delete
* Use `RepositoryData` to clean up unreferenced `snap-${uuid}.dat` blobs
from shard directories (and index-N) and as a result also clean up data
blobs that are only referenced by them
* Stop cleaning up anything but index-N on shard snapshot creation to
align behavior of shard index-N handling with root path index-N
handling
The responses super.writeTo() method was removed in #44092, so the corresponding
contructor that reads from a stream shouldn't call super itself, even though its
implementation is currently empty.
* Avoid Needless Set Instantiation in InboundMessage
* When `features` is empty (when there's no xpack) we constantly and needless instantiated a few objects here for the empty set on every message
* At least all the way back to 6.x we never use anything but `SMILE` in
production code with this class so I removed the more general
constructor and removed the format leniency from the deserialization
* HLRC: Fix '+' Not Correctly Encoded in GET Req.
* Encode `+` correctly as `%2B` in URL paths
* Keep encoding `+` as space in URL parameters
* Closes#33077
An indexing on a replica should never fail after it was successfully
indexed on a primary. Hence, we should fail an engine if we hit any
failure (document level or tragic failure) when processing an indexing
on a replica.
Relates #43228Closes#40435
Currently we loose information about whether a token list in an AnalyzeAction
response is null or an empty list, because we write a 0 value to the stream in
both cases and deserialize to a null value on the receiving side. This change
fixes this so we write an additional flag indicating whether the value is null
or not, followed by the size of the list and its content.
Closes#44078
This commit moves the Supplier variant of HandledTransportAction to have
a different ordering than the Writeable.Reader variant. The Supplier
version is used for the legacy Streamable, and currently having the
location of the Writeable.Reader vs Supplier in the same place forces
using casts of Writeable.Reader to select the correct super constructor.
This change in ordering allows easier migration to Writeable.Reader.
relates #34389
This is a refactor to current JSON logging to make it more open for extensions
and support for custom ES log messages used inDeprecationLogger IndexingSlowLog , SearchSLowLog
We want to include x-opaque-id in deprecation logs. The easiest way to have this as an additional JSON field instead of part of the message is to create a custom DeprecatedMessage (extends ESLogMEssage)
These messages are regular log4j messages with a text, but also carry a map of fields which can then populate the log pattern. The logic for this lives in ESJsonLayout and ESMessageFieldConverter.
Similar approach can be used to refactor IndexingSlowLog and SearchSlowLog JSON logs to contain fields previously only present as escaped JSON string in a message field.
closes#41350
backport #41354
* With the removal of the incompatible snapshots list in RepositoryData
the get snapshots and get all snapshots methods are equivalent so I
removed one of them
* The assertion added in #44214 is tripped by tests running dedicated
test clusters per test needlessly.This breaks existing tests like the one in #44245.
* Closes#44245
* Safer Shard Snapshot Delete
* We shouldn't delete the snapshot meta file before we update the index
in the shard folder. If we fail to update the index-N after deleting the
existing index-N is broken because the snap- blob it references is gone.
Today if a master-eligible node is converted to a master-ineligible node it may
remain in the voting configuration, meaning that the master node may count its
publish responses as an indication that it has properly persisted the cluster
state. However master-ineligible nodes do not properly persist the cluster
state, so it is not safe to count these votes.
This change adjusts `CoordinationState` to take account of this from a safety
point of view, and also adjusts the `Coordinator` to prevent such nodes from
joining the cluster. Instead, it triggers a reconfiguration to remove from the
voting configuration a node that now appears to be master-ineligible before
processing its join.
Backport of #43688, see #44260.
* We don't have to calculate the start and end times form the shards for the status API, we have the start time available from the CS or the `SnapshotInfo` in the repo and can either take the end time form the `SnapshotInfo` or
take the most recent time from the shard stats for in progress snapshots
* Closes#43074
For this test, we randomize the CLUSTER_MAX_CLAUSE_COUNT on test setup
(@BeforeClass) between 50 and 100. Some queries in the test generate 56 clauses
which hasn't been an issue before LUCENE-8811, but we slightly need to increase
the minimal possible clause count now.
Closes#44192
This will help in investigations where the real memory circuit breaker is tripped to better understand
on what the actual memory is used, i.e. whether it's a temporary thing (e.g. requests) in contrast to
more permanently allocated memory (e.g. accounting).
* Cleans up all root level temp., snap-%s.dat, meta-%s.dat blobs that aren't referenced by any snapshot to deal with dangling blobs left behind by delete and snapshot finalization failures
* The scenario that get's us here is a snapshot failing before it was finalized or a delete failing right after it wrote the updated index-(N+1) that doesn't reference a snapshot anymore but then fails to remove that snapshot
* Not deleting other dangling blobs since that don't follow the snap-, meta- or tempfile naming schemes to not accidentally delete blobs not created by the snapshot logic
* Follow up to #42189
* Same safety logic, get list of all blobs before writing index-N blobs, delete things after index-N blobs was written
* Fix ShrinkIndexIT
* Move this test suit to cluster scope. Currently, `testShrinkThenSplitWithFailedNode` stops a random node which randomly turns out to be the only shared master node so the cluster reset fails on account of the fact that no shared master node survived.
* Closes#44164
In some cases we need to parse some XContent that is already parsed into
a map. This is currently happening in handling source in SQL and ingest
processors as well as parsing null_value values in geo mappings. To avoid
re-serializing and parsing the value again or writing another map-based
parser this commit adds an iterator that iterates over a map as if it was
XContent. This makes reusing existing XContent parser on maps possible.
Relates to #43554
With connection management now being non-blocking, we can make NodeConnectionsService
avoid the use of MANAGEMENT threads that are blocked during the connection attempts.
I had to fiddle a bit with the tests as testPeriodicReconnection was using both the mock Threadpool
from the DeterministicTaskQueue as well as the real ThreadPool initialized at the test class level,
which resulted in races.
* Reduce Number of List Calls During Snapshot Create and Delete
Some obvious cleanups I found when investigation the API call count
metering:
* No need to get the latest generation id after loading latest
repository data
* Loading RepositoryData already requires fetching the latest
generation so we can reuse it
* Also, reuse list of all root blobs when fetching latest repo
generation during snapshot delete like we do for shard folders
* Lastly, don't try and load `index--1` (N = -1) repository data, it
doesn't exist -> just return the empty repo data initially
Simplifies AbstractSimpleTransportTestCase to use JVM-local ports and also adds an assertion so
that cases like #44134 can be more easily debugged. The likely reason for that one is that a test,
which was repeated again and again while always spawning a fresh Gradle worker (due to Gradle
daemon) kept increasing Gradle worker IDs, causing an overflow at some point.
* Improve Repository Consistency Check in Tests (#44099)
* Check that index metadata as well as snapshot metadata always exists
when referenced by other metadata
* Fix SnapshotResiliencyTests on ExtraFS (#44113)
* As a result of #44099 we're now checking more directories and have to
ignore the `extraN` folders for those like we do for indices already
* Closes#44112
* The incompatible snapshots logic was created to track 1.x snapshots that
became incompatible with 2.x
* It serves no purpose at this point
* It adds an additional GET request to every loading of
RepositoryData (from loading the incompatible snapshots blob)
By default, we don't check ranges while indexing geo_shapes. As a
result, it is possible to index geoshapes that contain contain
coordinates outside of -90 +90 and -180 +180 ranges. Such geoshapes
will currently break SQL and ML retrieval mechanism. This commit removes
these restriction from the validator is used in SQL and ML retrieval.
The base classes for transport requests and responses currently
implement Streamable and Writeable. The writeTo method on these base
classes is implemented with an empty implementation. Not only does this
complicate subclasses to think they need to call super.writeTo, but it
also can lead to not implementing writeTo when it should have been
implemented, or extendiong one of these classes when not necessary,
since there is nothing to actually implement.
This commit removes the empty writeTo from these base classes, and fixes
subclasses to not call super and in some cases implement an empty
writeTo themselves.
relates #34389
AggregatorFactory was generic over itself, but it doesn't appear we
use this functionality anywhere (e.g. to allow the super class
to declare arguments/return types generically for subclasses to
override). Most places use a wildcard constraint, and even when a
concrete type is specified it wasn't used.
But since AggFactories are widely used, this led to
the generic touching many pieces of code and making type signatures
fairly complex
PrimaryAllocationIT#testForceStaleReplicaToBePromotedToPrimary
relies on the flushing when a shard is no long assigned. This behavior,
however, can be randomly disabled in MockInternalEngine.
Closes#44049
The `ShardFailedClusterStateTaskExecutor` fails some shards, which performs a
reroute, but then sometimes schedules a followup reroute. It's not clear from
the code why this followup is necessary, so this commit adds a short comment
describing why it's necessary.
This commit replaces usages of Streamable with Writeable for the
MultiSearchRequest class.
I ran into this when developing a custom action that reuses
MultiSearchRequest in the enrich branch.
Relates to #34389
Today the `ClusterInfoService` requires the `DiskThresholdMonitor` at
construction time so that it can notify it when nodes report changes in their
disk usage, but this is awkward to construct: the `DiskThresholdMonitor`
requires a `RerouteService` which requires an `AllocationService` which comees
from the `ClusterModule` which requires the `ClusterInfoService`.
Today we break the cycle with a `LazilyInitializedRerouteService` which is
itself a little ugly. This commit replaces this with a more traditional
subject/observer relationship between the `ClusterInfoService` and the
`DiskThresholdMonitor`.
Today `testOnlyBlocksOnConnectionsToNewNodes` fails (extremely rarely) if the
last attempt to connect to `node0` is delayed for so long that the test runs
`nodeConnectionsBlocks.clear()` before the connection attempt obtains the
expected connection block. We can turn this into a reliable failure with this
delay:
```diff
diff --git a/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java b/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java
index f48413824d3..9a1d0336bcd 100644
--- a/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java
+++ b/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java
@@ -300,6 +300,13 @@ public class NodeConnectionsService extends AbstractLifecycleComponent {
private final Runnable connectActivity = () -> threadPool.executor(ThreadPool.Names.MANAGEMENT).execute(new AbstractRunnable() {
@Override
protected void doRun() {
+
+ try {
+ Thread.sleep(500);
+ } catch (InterruptedException e) {
+ throw new AssertionError("unexpected", e);
+ }
+
assert Thread.holdsLock(mutex) == false : "mutex unexpectedly held";
transportService.connectToNode(discoveryNode);
consecutiveFailureCount.set(0);
```
This commit reverts the extra logging introduced in #43979 and fixes this
failure by waiting for the connection attempt to hit the barrier before
removing it.
Fixes#40170
Since #42636 we no longer treat connections specially when simulating a
blackholed connection. This means that at the end of the safety phase we may
have just started a connection attempt which will time out, but the default
timeout is 30 seconds, much longer than the 2 seconds we normally allow for
post-safety-phase discovery. This commit adds time for such a connection
attempt to time out.
It also fixes some spurious logging of `this` that now refers to an object with
an unhelpful `toString()` implementation introduced in #42636.
Fixes#44073
Refactor ScrollableHitSource to pump data out and have a simplified
interface (callers should no longer call startNextScroll, instead they
simply mark that they are done with the previous result, triggering a
new batch of data). This eases making reindex resilient, since we will
sometimes need to rerun search during retries.
Relates #43187 and #42612
Today the `index.routing.allocation.initial_recovery._id` setting can only be
set on indices that are the result of a shrink, but the filtered allocation
decider also applies this filter to shards with a recovery source of
`EMPTY_STORE`. The only way to have this setting set while the recovery source
is `EMPTY_STORE` is to force-allocate an empty primary, but such a forced
allocation ignores this allocation decider.
This commit simplifies the allocation decider so that the `initial_recovery`
setting only applies to shards with a recovery source of `LOCAL_SHARDS`.
* Fix DedicatedClusterSnapshotRestoreIT testSnapshotWithStuckNode
* See comment in the test: The problem is that when the snapshot delete works out partially on master failover and the retry fails on `SnapshotMissingException` no repository cleanup is run => we still failed even with repo cleanup logic in the delete path now
* Fixed the test by rerunning a create snapshot and delete loop to clean up the repo before verifying file counts
* Closes#39852
* Missed this one in #42189 and it randomly runs into a situation where the broken mock repo is broken such that we can't get to a consistent end state via a delete
* Closes#43498
Today we prevent any index that is actively snapshotted or restored to be closed.
This verification is done during the execution of the first phase of index closing
(ie before blocking the indices).
We should also do this verification again in the last phase of index closing
(ie after the shard sanity checks and right before actually changing the index
state and the routing table) because a snapshot/restore could sneak in while
the shards are verified-before-close.
Provides a hook for aggregations to introspect the `ValuesSourceType` for a user supplied Missing value on an unmapped field, when the type would otherwise be `ANY`. Mapped field behavior is unchanged, and still applies the `ValuesSourceType` of the field. This PR just provides the hook for doing this, no existing aggregations have their behavior changed.
* In the current codebase it is hardly obvious what code operates on a shard and is run by a datanode what code operates on the global metadata and is run on master
* Fixed by adjusting the method names accordingly
* The nested context classes don't add much if any value, they simply spread out the parameters that go into a shard snapshot create or delete all over the place since their
constructors can be inlined in all spots
* Fixed by flattening the nested classes into BlobStoreRepository
* Also:
* Inlined the other single use inner classes
* Remove some obvious dead code
* Move assert methods that were only used in a single test class to the child they belong to
* Inline some redundant methods
If an index is the result of a shrink then it will have a value set for
`index.routing.allocation.initial_recovery._id`. If this index is subsequently
split then this value will be copied over, forcing the initial allocation of
the split shards to occur on the node on which the shrink took place. Moreover
if this node no longer exists then the split will fail. This commit suppresses
the copying of this setting when splitting an index.
Fixes#43955
* Use ability to list child "folders" in the blob store to implement recursive delete on all stale index folders when cleaning up instead of using the diff between two `RepositoryData` instances to cover aborted deletes
* Runs after ever delete operation
* Relates #13159 (fixing most of this issues caused by unreferenced indices, leaving some meta files to be cleaned up only)
Joda allowed for date_optional_time and strict_date_optional_time a decimal point to be . dot or , comma
For our java.time implementation we should also extend this for strict_date_optional_time-nanos
the approach to fix this is the same as in iso8601 parser
closes#43730
This PR enables the indexing optimization using sequence numbers on
replicas. With this optimization, indexing on replicas should be faster
and use less memory as it can forgo the version lookup when possible.
This change also deactivates the append-only optimization on replicas.
Relates #34099
This commit converts the ConnectionManager's openConnection and connectToNode methods to
async-style. This will allow us to not block threads anymore when opening connections. This PR also
adapts the cluster coordination subsystem to make use of the new async APIs, allowing to remove
some hacks in the test infrastructure that had to account for the previous synchronous nature of the
connection APIs.
These assertions do not hold true when a master fails during publication and quickly becomes
master again, publishing a new cluster state in a higher term which races against the previous
cluster state publication to self (which does not matter anyway).
Relates #43994Closes#44012
This commit ensures that cluster state publications to self also go through the transport layer. This
allows voting-only nodes to intercept the publication to self.
Fixes an issue discovered by a test failure where a voting-only node, which was the only
bootstrapped node, would not step down as master after state transfer because publishing to self
would succeed.
Closes#43631
Today `RetentionLeaseSyncAction.Request` and
`RetentionLeaseBackgroundSyncAction.Request` both describe themselves as
`Request{...}` in the value returned from their respective `toString()`
methods. This commit adds the name of the owning class to both so we have
something a bit easier to search for and so we can distinguish foreground from
background syncs in logs and test failures and so on.
This commit changes the way we manage refreshes in the index engines.
Instead of relying on a SearcherManager, this change uses a ReaderManager that
creates ElasticsearchDirectoryReader when needed. Searchers are now created on-demand
(when acquireSearcher is called) from the current ElasticsearchDirectoryReader.
It also slightly changes the Engine.Searcher to extend IndexSearcher in order
to simplify the usage in the consumer.
Currently we log a deprecation warning to the types removal in
RestGetIndicesAction even if the REST method is HEAD, which is used by the
indices.exists API. Since the body is empty in this case we should not need to
show the deprecation warning.
Closes#43905
The test IndexShardIT.testIndexCanChangeCustomDataPath() fails
on 7.x and 7.3 because the translog cannot be recovered.
While I can't reproduce the issue, I think it has been introduced in #43752
which changed ReadOnlyEngine so that it opens the translog in its
constructor in order to load the translog stats. This opening writes a
new checkpoint file, but because 7.x/7.3 does not wait for shards to be
started after being closed, the test immediately starts to copy shard files
to a new directory and possibly does not copy all the required translog files.
By waiting for the shards to be started after being closed, we ensure
that the shards (and engines) have been correctly initialized and that
the translog checkpoint file is not currently being written.
closes#43964
This brings TokenizerFactory into line with CharFilterFactory and TokenFilterFactory,
and removes the need to pass around tokenizer names when building custom analyzers.
As this means that TokenizerFactory is no longer a functional interface, the commit also
adds a factory method to TokenizerFactory to make construction simpler.
Disjunction over two individual terms in a phrase query with multi-word synonyms
wrongly applies a prefix query to each of these terms. This change fixes this bug
by inversing the logic to use prefixes on `phrase_prefix` queries only.
Closes#43308
This commit changes async IO processor to release the promiseSemaphore
before notifying consumers. This ensures that a bad consumer that
sometimes does blocking (or otherwise slow) operations does not halt the
processor. This should slightly increase the concurrency for shard
fsync, but primarily improves safety so that one bad piece of code has
less effect on overall system performance.
Enables libs/geo parser to return a geometry format object that can
perform both serialization and deserialization functions. This can
be useful for ingest nodes that are trying to modify an existing
geometry in the source.
Relates to #43554
This is a prerequisite of #42189:
* Add directory delete method to blob container specific to each implementation:
* Some notes on the implementations:
* AWS + GCS: We can simply exploit the fact that both AWS and GCS return blobs lexicographically ordered which allows us to simply delete in the same order that we receive the blobs from the listing request. For AWS this simply required listing without the delimiter setting (so we get a deep listing) and for GCS the same behavior is achieved by not using the directory mode on the listing invocation. The nice thing about this is, that even for very large numbers of blobs the memory requirements are now capped nicely since we go page by page when deleting.
* For Azure I extended the parallelization to the listing calls as well and made it work recursively. I verified that this works with thread count `1` since we only block once in the initial thread and then fan out to a "graph" of child listeners that never block.
* HDFS and FS are trivial since we have directory delete methods available for them
* Enhances third party tests to ensure the new functionality works (I manually ran them for all cloud providers)
IndexAnalyzers has a close() method that should iterate through all its wrapped
analyzers and close each one in turn. However, instead of delegating to the
analyzers' close() methods, it instead wraps them in a Closeable interface,
which just returns a list of the analyzers. In addition, whitespace normalizers are
ignored entirely.
When profiling a call to `AllocationService#reroute()` in a large cluster
containing allocation filters of the form `node-name-*` I observed a nontrivial
amount of time spent in `Regex#simpleMatch` due to these allocation filters.
Patterns ending in a wildcard are not uncommon, and this change treats them as
a special case in `Regex#simpleMatch` in order to shave a bit of time off this
calculation. It also uses `String#regionMatches()` to avoid an allocation in
the case that the pattern's only wildcard is at the start.
Microbenchmark results before this change:
Result "org.elasticsearch.common.regex.RegexStartsWithBenchmark.performSimpleMatch":
1113.839 ±(99.9%) 6.338 ns/op [Average]
(min, avg, max) = (1102.388, 1113.839, 1135.783), stdev = 9.486
CI (99.9%): [1107.502, 1120.177] (assumes normal distribution)
Microbenchmark results with this change applied:
Result "org.elasticsearch.common.regex.RegexStartsWithBenchmark.performSimpleMatch":
433.190 ±(99.9%) 0.644 ns/op [Average]
(min, avg, max) = (431.518, 433.190, 435.456), stdev = 0.964
CI (99.9%): [432.546, 433.833] (assumes normal distribution)
The microbenchmark in question was:
@Fork(3)
@Warmup(iterations = 10)
@Measurement(iterations = 10)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Benchmark)
@SuppressWarnings("unused") //invoked by benchmarking framework
public class RegexStartsWithBenchmark {
private static final String testString = "abcdefghijklmnopqrstuvwxyz";
private static final String[] patterns;
static {
patterns = new String[testString.length() + 1];
for (int i = 0; i <= testString.length(); i++) {
patterns[i] = testString.substring(0, i) + "*";
}
}
@Benchmark
public void performSimpleMatch() {
for (int i = 0; i < patterns.length; i++) {
Regex.simpleMatch(patterns[i], testString);
}
}
}
* Optimize Snapshot Finalization
* Delete index-N blobs and segement blobs in one single bulk delete instead of in separate ones to save RPC calls on implementations that have bulk deletes implemented
* Don't fail snapshot because deleting old index-N failed, this results in needlessly logging finalization failures and makes analysis of failures harder going forward as well as incorrect index.latest blobs
* Add Ability to List Child Containers to BlobContainer (#42653)
* Add Ability to List Child Containers to BlobContainer
* This is a prerequisite of #42189
This change fixes the name of the index_prefix sub field when the `index_prefix`
option is set on a text field that is nested under an object or a multi-field.
We don't use the full path of the parent field to set the index_prefix field name
so the field is registered under the wrong name. This doesn't break queries since
we always retrieve the prefix field through its parent field but this breaks other
APIs like _field_caps which tries to find the parent of the `index_prefix` field
in the mapping but fails.
Closes#43741
This commit allows bulk upserts to correctly read the default pipeline
for the concrete index that belongs to an alias.
Bulk upserts are modeled differently from normal index requests such that
the index request is a request inside of the update request. The update
request (outer) contains the index or alias name is not part of the (inner)
index request. This commit adds a secondary check against the update request
(outer) if the index request (inner) does not find an alias.
Currently the repsonse of the "_reload_search_analyzer" endpoint contains the
index names and nodeIds of indices were analyzers reloading was triggered. This
change add the names of the search-time analyzers that were reloaded.
Closes#43804
With Lucene rollback (#33473), we should never have more than one
primary term for each sequence number. Therefore we don't have to sort
by the primary term when reading soft-deletes.
The `RoutingService` has a confusing name, since it doesn't really have
anything to do with routing. Its responsibility is submitting reroute commands
to the master.
This commit renames this class to `BatchedRerouteService`, and extracts the
`RerouteService` interface to avoid passing `BiConsumer`s everywhere. It also
removes that `BatchedRerouteService extends AbstractLifecycleComponent` since
this service has no meaningful lifecycle. Finally, it introduces a small
wrapper class to allow for lazy initialization to deal with the dependency loop
when constructing a `Node`.
This adds a `rare_terms` aggregation. It is an aggregation designed
to identify the long-tail of keywords, e.g. terms that are "rare" or
have low doc counts.
This aggregation is designed to be more memory efficient than the
alternative, which is setting a terms aggregation to size: LONG_MAX
(or worse, ordering a terms agg by count ascending, which has
unbounded error).
This aggregation works by maintaining a map of terms that have
been seen. A counter associated with each value is incremented
when we see the term again. If the counter surpasses a predefined
threshold, the term is removed from the map and inserted into a cuckoo
filter. If a future term is found in the cuckoo filter we assume it
was previously removed from the map and is "common".
The map keys are the "rare" terms after collection is done.
This commit merges the `object-fields` feature branch. The new 'flattened
object' field type allows an entire JSON object to be indexed into a field, and
provides limited search functionality over the field's contents.
Added an additional method to the Processor interface to allow a
processor implementation to make a non blocking call.
Also added semaphore in order to avoid search thread pools from rejecting
search requests originating from the match processor. This is a temporary workaround.
Action is a class that encapsulates meta information about an action
that allows it to be called remotely, specifically the action name and
response type. With recent refactoring, the action class can now be
constructed as a static constant, instead of needing to create a
subclass. This makes the old pattern of creating a singleton INSTANCE
both misnamed and lacking a common placement.
This commit renames Action to ActionType, thus allowing the old INSTANCE
naming pattern to be TYPE on the transport action itself. ActionType
also conveys that this class is also not the action itself, although
this change does not rename any concrete classes as those will be
removed organically as they are converted to TYPE constants.
relates #34389
Today the `DiskThresholdMonitor` limits the frequency with which it submits
reroute tasks, but it might still submit these tasks faster than the master can
process them if, for instance, each reroute takes over 60 seconds. This causes
a problem since the reroute task runs with priority `IMMEDIATE` and is always
scheduled when there is a node over the high watermark, so this can starve any
other pending tasks on the master.
This change avoids further updates from the monitor while its last task(s) are
still in progress, and it measures the time of each update from the completion
time of the reroute task rather than its start time, to allow a larger window
for other tasks to run.
It also now makes use of the `RoutingService` to submit the reroute task, in
order to batch this task with any other pending reroutes. It enhances the
`RoutingService` to notify its listeners on completion.
Fixes#40174
Relates #42559
Introduces a new `ConsistentSecureSettingsValidatorService` service that exposes
a single public method, namely `allSecureSettingsConsistent`. The method returns
`true` if the local node's secure settings (inside the keystore) are equal to the
master's, and `false` otherwise. Technically, the local node has to have exactly
the same secure settings - setting names should not be missing or in surplus -
for all `SecureSetting` instances that are flagged with the newly introduced
`Property.Consistent`. It is worth highlighting that the `allSecureSettingsConsistent`
is not a consensus view across the cluster, but rather the local node's perspective
in relation to the master.
The Action base class currently works for both Streamable and Writeable
response types. This commit intorduces StreamableResponseAction, for
which only the legacy Action implementions which provide newResponse()
will extend. This eliminates the need for overriding newResponse() with
an UnsupportedOperationException.
relates #34389
Today when an index is closed all its shards are forced flushed
but the translog files are left around. As explained in #42445
we'd like to trim the translog for closed indices in order to
consume less disk space. This commit reuses the existing
AsyncTrimTranslogTask task and reenables it for closed indices.
At the time the task is executed, we should have the guarantee
that nothing holds the translog files that are going to be removed.
It also leaves a short period of time (10 min) during which translog
files of a recently closed index are still present on disk. This could
also help in some cases where the closed index is reopened
shortly after being closed (in order to update an index setting
for example).
Relates to #42445
This change removes the ability to wrap an IndexSearcher in plugins. The IndexSearcherWrapper is replaced by an IndexReaderWrapper and allows to wrap the DirectoryReader only. This simplifies the creation of the context IndexSearcher that is used on a per request basis. This change also moves the optimization that was implemented in the security index searcher wrapper to the ContextIndexSearcher that now checks the live docs to determine how the search should be executed. If the underlying live docs is a sparse bit set the searcher will compute the intersection
betweeen the query and the live docs instead of checking the live docs on every document that match the query.
This commit adds a wildcard intervals source, similar to the prefix. It
also changes the term parameter in prefix to read prefix, to bring it
in to line with the pattern parameter in wildcard.
Closes#43198
Currently changing resources (like dictionaries, synonym files etc...) of search
time analyzers is only possible by closing an index, changing the underlying
resource (e.g. synonym files) and then re-opening the index for the change to
take effect.
This PR adds a new API endpoint that allows triggering reloading of certain
analysis resources (currently token filters) that will then pick up changes in
underlying file resources. To achieve this we introduce a new type of custom
analyzer (ReloadableCustomAnalyzer) that uses a ReuseStrategy that allows
swapping out analysis components. Custom analyzers that contain filters that are
markes as "updateable" will automatically choose this implementation. This PR
also adds this capability to `synonym` token filters for use in search time
analyzers.
Relates to #29051
When we added support for TokenFilterFactories to specialise how they were used when parsing
synonym files, PreConfiguredTokenFilters were set up to either apply themselves, or be ignored.
This behaviour is a leftover from an earlier iteration, and also has an incorrect default.
This commit makes preconfigured token filters usable in synonym file parsing by default, and brings
those filters that should not be used into line with index-specific filter factories; in indexes created
before version 7 we emit a deprecation warning, and we throw an error in indexes created after.
Fixes#38793
TransportNodesAction provides a mechanism to easily broadcast a request
to many nodes, and collect the respones into a high level response. Each
node has its own request type, with a base class of BaseNodeRequest.
This base request requires passing the nodeId to which the request will
be sent. However, that nodeId is not used anywhere. It is private to the
base class, yet serialized to each node, where the node could just as
easily find the nodeId of the node it is on locally.
This commit removes passing the nodeId through to the node request
creation, and guards its serialization so that we can remove the base
request class altogether in the future.
GatewayIndexStateIT#testRecoverBrokenIndexMetadata replies on the
flushing on shutdown. This behaviour, however, can be randomly disabled
in MockInternalEngine.
Closes#43034
Adds support for the situation where only voting-only nodes are bootstrapped. In that case, they will
still try to become elected and bring full master nodes into the cluster.
Search requests executed through the SecurityIndexSearcherWrapper throw
an UnsupportedOperationException if they match a sparse role query.
When low level cancellation is activated (which is the default since #42857),
the context index searcher creates a weight that doesn't handle #scorer.
This change fixes this bug and adds a test to ensure that we check this case.
Currently `AbstractQueryTestCase#testToQuery` checks the search context cachable
flag. This is a bit fragile due to the high randomization of query builders
performed by this general test. Also we might only rarely check the
"interesting" cases because they rarely get generated when fully randomizing the
query builder.
This change moved the general checks out ot #testToQuery and instead adds
dedicated cache tests for those query builders that exhibit something other than
the default behaviour.
Closes#43200
When a named token filter or char filter is passed as part of an Analyze API
request with no index, we currently try and build the relevant filter using no
index settings. However, this can miss cases where there is a pre-configured
filter defined in the analysis registry. One example here is the elision filter, which
has a pre-configured version built with the french elision set; when used as part
of normal analysis, this preconfigured set is used, but when used as part of the
Analyze API we end up with NPEs because it tries to instantiate the filter with
no index settings.
This commit changes the Analyze API to check for pre-configured filters in the case
that the request has no index defined, and is using a name rather than a custom
definition for a filter.
It also changes the pre-configured `word_delimiter_graph` filter and `edge_ngram`
tokenizer to make their settings consistent with the defaults used when creating
them with no settings
Closes#43002Closes#43621Closes#43582
This commit adds a prefix intervals source, allowing you to search
for intervals that contain terms starting with a given prefix. The source
can make use of the index_prefixes mapping option.
Relates to #43198
This commit modifies the RemoteInfo to clarify that a search query
must always be serialized as JSON. Additionally, it adds an assertion
to ensure that this is the case. This fixes#43406.
Additionally, this PR implements AbstractXContentTestCase for the
reindex request. This is related to #43456.
A voting-only master-eligible node is a node that can participate in master elections but will not act
as a master in the cluster. In particular, a voting-only node can help elect another master-eligible
node as master, and can serve as a tiebreaker in elections. High availability (HA) clusters require at
least three master-eligible nodes, so that if one of the three nodes is down, then the remaining two
can still elect a master amongst them-selves. This only requires one of the two remaining nodes to
have the capability to act as master, but both need to have voting powers. This means that one of
the three master-eligible nodes can be made as voting-only. If this voting-only node is a dedicated
master, a less powerful machine or a smaller heap-size can be chosen for this node. Alternatively, a
voting-only non-dedicated master node can play the role of the third master-eligible node, which
allows running an HA cluster with only two dedicated master nodes.
Closes#14340
Co-authored-by: David Turner <david.turner@elastic.co>
Today the `ClusterFormationFailureHelper` says `... discovery will continue
using ... from last-known cluster state` and lists all the nodes in the
last-known cluster state. In fact we ignore the master-ineligible nodes in the
last-known cluster state during discovery. This commit fixes this by listing
only the master-eligible nodes from the cluster state in this message.
If the master removes the relocating shard, but recovery isn't aware of
it, then we can enter an invalid state where ReplicationTracker does not
include the local shard.
Today we assert that a warning is logged after no more than
`discovery.cluster_formation_warning_timeout`, but the deterministic scheduler
adds a small amount of extra randomness to the timing of future events, causing
the following build to fail:
./gradlew :server:test --tests "org.elasticsearch.cluster.coordination.CoordinatorTests.testLogsWarningPeriodicallyIfClusterNotFormed" -Dtests.seed=DF35C28D4FA9EE2D
This commit adds an allowance for this extra time.
After two recent changes (#38824 and #33888), the _cat/indices API
no longer report information for active recovering indices and
non-replicated closed indices. It also misreport replicated closed
indices that are potentially not authorized for the user.
This commit changes how the cat action works by first using the
Get Settings API in order to resolve authorized indices. It then uses
the Cluster State, Cluster Health and Indices Stats APIs to retrieve
information about the indices.
Closes#39933
Add client to processor parameters in the ingest service.
Remove the search provider function from the processor parameters.
ExactMatchProcessor and Factory converted to use client.
Remove test cases that are no longer applicable from processor.
This refactors AggregatorTestCase to allow testing mock scripts.
The main change is to QueryShardContext. This was previously mocked,
but to get the ScriptService you have to invoke a final method
which can't be mocked.
Instead, we just create a mostly-empty QueryShardContext and populate
the fields that are needed for testing. It also introduces a few
new helper methods that can be overridden to change the default
behavior a bit.
Most tests should be able to override getMockScriptService() to supply
a ScriptService to the context, which is later used by the aggs.
More complicated tests can override queryShardContextMock() as before.
Adds a test to MaxAggregatorTests to test out the new functionality.
At the end of a peer recovery the primary wants to mark the replica as in-sync. For that the
persisted local checkpoint of the replica needs to have caught up with the global checkpoint on the
primary. If translog durability is set to ASYNC, this means that information about the persisted local
checkpoint can lag on the primary and might need to be explicitly fetched through a global
checkpoint sync action. Unfortunately, that action will only be triggered after 30 seconds, and, even
worse, will only run based on what the in-sync shard copies say (see
IndexShard.maybeSyncGlobalCheckpoint). As the replica has not been marked as in-sync yet, it is
not taken into consideration, and the primary might have its global checkpoint equal to the max seq
no, so it thinks nothing needs to be done.
Closes#43486
Long and Double ValuesSource set the current document on the script
before executing, but Bytes was missing this method call. That meant
it was possible to generate an OutOfBoundsException when using
a "value" script (field + script) on keyword or other bytes
fields.
This adds in the method call, and a few yaml tests to verify correct
behavior.
This commit performs the proper restore of network disruption.
Previously disruptionScheme.stopDisrupting() was called that does not
ensure that connectivity between cluster nodes is restored. The test
was checking that the cluster has green status, but it was not checking
that connectivity between nodes is restored.
Here we switch to internalCluster().clearDisruptionScheme(true) which
performs both checks before returning.
Similar to #42798Closes#42051
(cherry picked from commit cd1ed662f847a0055ede7dfbd325e214ec4d1490)
This commit replaces usages of Streamable with Writeable for the
AcknowledgedResponse and its subclasses, plus associated actions.
Note that where possible response fields were made final and default
constructors were removed.
This is a large PR, but the change is mostly mechanical.
Relates to #34389
Backport of #43414
Unsupported HTTP methods are detected during requests dispatching
which generates an appropriate error response. Sadly, this error is
never sent back to the client because the method of the original
request is checked again in DefaultRestChannel which throws again
an IllegalArgumentException that is never handled.
This pull request changes the DefaultRestChannel so that the latest
exception is swallowed, allowing the error message to be sent back
to the client. It also eagerly adds the objects to close to the toClose
list so that resources are more likely to be released if something
goes wrong during the response creation and sending.
We currently assert that adding deletion tombstones to Lucene must always succeed if it's not a
tragic exception, and the same should also hold true for NOOP tombstones. We rely on this
assumption, as without this, we have the risk of creating gaps in the history, which will break
operation-based recoveries and CCR.
Depending on git configuration, line feed on checked out files may be
platform dependent, which causes problems to some msearch tests as the
line separator must always be `/n`. With this change we move two files
to the test code so that we control exactly what line separator is used,
given that the corresponding tests fail on windows.
Closes#43464
Removes `@TestLogging` annotations in `*DisruptionIT` tests, so that the only
tests with annotations are those with open issues. Also adds links to the open
issues in the remaining cases.
Relates #43403
The current toXContent implementation can fail when the superclasses toXContent
is called (see #43423). This change makes sure that
DefaultShardOperationFailedException#toXContent is final and implementations
need to add special fields in #innerToXContent. All implementations should write
to self-contained xContent objects. Also adding a test for xContent deserialization
to CloseIndexResponseTests.
Closes#43423
Today when searching for an exclusive range the java date math parser rounds up the value
with the granularity of the operation. So when searching for values that are greater than
"now-2M" the parser rounds up the operation to "now-1M". This behavior was introduced when
we migrated to java date but it looks like a bug since the joda math parser rounds up values
but only when a rounding is used. So "now/M" is rounded to "now-1ms" (minus 1ms to get the largest inclusive value)
in the joda parser if the result should be exclusive but no rounding is applied if the input
is a simple operation like "now-1M". This change restores the joda behavior in order to have
a consistent parsing in all versions.
Closes#43277
Currently the fromXContent logic for reindex requests is implemented in
the rest action. This is inconsistent with other requests where the
logic is implemented in the request. Additionally, it requires access to
the rest action in order to parse the request. This commit moves the
logic and tests into the ReindexRequest.
AggregatorTestCase will NPE if only a single, null MappedFieldType
is provided (which is required to simulate an unmapped field). While
it's possible to test unmapped fields by supplying other, non-related
field types... that's clunky and unnecessary. AggregatorTestCase
just needs to filter out null field types when setting up.
Today the `DisruptibleMockTransport` always allows a connection to a node to be
established, and then fails requests sent to that node such as the subsequent
handshake. Since #42342, we log handshake failures on an open connection as a
warning, and this makes the test logs rather noisy. This change fails the
connection attempt first, avoiding these unrealistic warnings.
The test needed adaption after #43205, as the ReplicationTracker now distinguishes between the
knowledge of the persisted global checkpoint and the computed global checkpoint on the primary
Follow-up to #43205
Local and global checkpoints currently do not correctly reflect what's persisted to disk. The issue is
that the local checkpoint is adapted as soon as an operation is processed (but not fsynced yet). This
leaves room for the history below the global checkpoint to still change in case of a crash. As we rely
on global checkpoints for CCR as well as operation-based recoveries, this has the risk of shard
copies / follower clusters going out of sync.
This commit required changing some core classes in the system:
- The LocalCheckpointTracker keeps track now not only of the information whether an operation has
been processed, but also whether that operation has been persisted to disk.
- TranslogWriter now keeps track of the sequence numbers that have not been fsynced yet. Once
they are fsynced, TranslogWriter notifies LocalCheckpointTracker of this.
- ReplicationTracker now keeps track of the persisted local and persisted global checkpoints of all
shard copies when in primary mode. The computed global checkpoint (which represents the
minimum of all persisted local checkpoints of all in-sync shard copies), which was previously stored
in the checkpoint entry for the local shard copy, has been moved to an extra field.
- The periodic global checkpoint sync now also takes async durability into account, where the local
checkpoints on shards only advance when the translog is asynchronously fsynced. This means that
the previous condition to detect inactivity (max sequence number is equal to global checkpoint) is
not sufficient anymore.
- The new index closing API does not work when combined with async durability. The shard
verification step is now requires an additional pre-flight step to fsync the translog, so that the main
verify shard step has the most up-to-date global checkpoint at disposition.
The RemoteClusterService should close the current
RemoteClusterConnection and should build it again if
the seeds are changed, similarly to what is done when
the ping interval or the compression settings are changed.
Closes#37799
The fact that SearchPhaseContext extends ActionListener makes it hard
to reason about when the original listener is notified and to trace
those calls. Also, the corresponding onFailure and onResponse were
only needed in two places, one each, where they can be replaced by a
more intuitive call, like sendSearchResponse for onResponse.
Today the fielddata for global ordinals re-creates docvalues readers of each segment
when building the iterator of a single segment. This is required because the lookup of
global ordinals needs to access the docvalues's TermsEnum of each segment to retrieve
the original terms. This also means that we need to create NxN (where N is the number of segment in the index) docvalues iterators
each time we want to collect global ordinal values. This wasn't an issue in previous versions since docvalues readers are stateless
before 6.0 so they are reused on each segment but now that docvalues are iterators we need to create a new instance each time
we want to access the values. In order to avoid creating too many iterators this change splits
the global ordinals fielddata in two classes, one that is used to cache a single instance per directory reader and one
that is created from the cached instance that can be used by a single consumer. The latter creates the TermsEnum of each segment
once and reuse them to create the segment's iterator. This prevents the creation of all TermsEnums each time we want to access
the value of a single segment, hence reducing the number of docvalues iterator to create to Nx2 (one iterator and one lookup per segment).
This commit removes some very old test logging annotations that appeared
to be added to investigate test failures that are long since closed. If
these are needed, they can be added back on a case-by-case basis with a
comment associating them to a test failure.
It's possible for the passed in `IndexMetaData` to be null (for
instance, cluster state passed in does not have the index in its
metadata) which in turn can cause a `NullPointerException` when
evaluating the conditions for an index. This commit adds null protection
and unit tests for this case.
Resolves#43296
While investigating memory consumption of deeply nested aggregations for #43091
the memory used to keep track of the doc ids and buckets in the BestBucketsDeferringCollector
showed up as one of the main contributor. In my tests half of the memory held in the
BestBucketsDeferringCollector is associated to segments that don't have matching docs
in the selected buckets. This is expected on fields that have a big cardinality since each
bucket can appear in very few segments. By allocating the builders lazily this change
reduces the memory consumption by a factor 2 (from 1GB to 512MB), hence reducing the
impact on gcs for these volatile allocations. This commit also switches the PackedLongValues.Builder
with a RoaringDocIdSet in order to handle very sparse buckets more efficiently.
I ran all my tests on the `geoname` rally track with the following query:
````
{
"size": 0,
"aggs": {
"country_population": {
"terms": {
"size": 100,
"field": "country_code.raw"
},
"aggs": {
"admin1_code": {
"terms": {
"size": 100,
"field": "admin1_code.raw"
},
"aggs": {
"admin2_code": {
"terms": {
"size": 100,
"field": "admin2_code.raw"
},
"aggs": {
"sum_population": {
"sum": {
"field": "population"
}
}
}
}
}
}
}
}
}
}
````
This PR is a backport a of #43214 from v8.0.0
A number of the aggregation base classes have an abstract doEquals() and doHashCode() (e.g. InternalAggregation.java, AbstractPipelineAggregationBuilder.java).
Theoretically this is so the sub-classes can add to the equals/hashCode and don't need to worry about calling super.equals(). In practice, it's mostly just confusing/inconsistent. And if there are more than two levels, we end up with situations like InternalMappedSignificantTerms which has to call super.doEquals() which defeats the point of having these overridable methods.
This PR removes the do versions and just use equals/hashCode ensuring the super when necessary.
* Follow up to #42109:
* Adjust test to only check that interface lookup by name works not actually lookup IPs which is brittle since virtual interfaces can be destroyed/created by Docker while the tests are running
Co-authored-by: Jason Tedor <jason@tedor.me>
* Return 0 for negative "free" and "total" memory reported by the OS
We've had a situation where the MX bean reported negative values for the
free memory of the OS, in those rare cases we want to return a value of
0 rather than blowing up later down the pipeline.
In the event that there is a serialization or creation error with regard
to memory use, this adds asserts so the failure will occur as soon as
possible and give us a better location for investigation.
Resolves#42157
* Fix test passing in invalid memory value
* Fix another test passing in invalid memory value
* Also change mem check in MachineLearning.machineMemoryFromStats
* Add background documentation for why we prevent negative return values
* Clarify comment a bit more
This PR reverts #35230.
Previously, we reply on soft-deletes to fill the mismatch between the
version map and the Lucene index. This is no longer needed after #43202
where we rebuild the version map when opening an engine. Moreover,
PrunePostingsMergePolicy can prune _id of soft-deleted documents out of
order; thus the lookup result including soft-deletes sometimes does not
return the latest version (although it's okay as we only use a valid
result in an engine).
With this change, we use only live documents in Lucene to resolve the
indexing strategy. This is perfectly safe since we keep all deleted
documents after the local checkpoint in the version map.
Closes#42979
Backport of: https://github.com/elastic/elasticsearch/pull/43222
This commit replaces usages of Streamable with Writeable for the
SingleShardRequest / TransportSingleShardAction classes and subclasses of
these classes.
Note that where possible response fields were made final and default
constructors were removed.
Relates to #34389
Today the `ClusterFormationFailureHelper` does not include the local node in
the list of nodes it claims to have discovered. This means that it sometimes
reports that it has not discovered a quorum when in fact it has. This commit
adds the local node to the set of discovered nodes.
Today we suppress election attempts on master-eligible nodes that are not in
the voting configuration. In fact this restriction is not necessary: any
master-eligible node can safely become master as long as it has a fresh enough
cluster state and can gather a quorum of votes. Moreover, this restriction is
sometimes undesirable: there may be a reason why we do not want any of the
nodes in the voting configuration to become master.
The reason for this restriction is as follows. If you want to shut the master
down then you might first exclude it from the voting configuration. When this
exclusion succeeds you might reasonably expect that a new master has been
elected, since the voting config exclusion is almost always a step towards
shutting the node down. If we allow nodes outside the voting configuration to
be the master then the excluded node will continue to be master, which is
confusing.
This commit adjusts the logic to allow master-eligible nodes to attempt an
election even if they are not in the voting configuration. If such a master is
successfully elected then it adds itself to the voting configuration. This
commit also adjusts the logic that causes master nodes to abdicate when they
are excluded from the voting configuration, to avoid the confusion described
above.
Relates #37712, #37802.
With this change, we will rebuild the live version map and local
checkpoint using documents (including soft-deleted) from the safe commit
when opening an internal engine. This allows us to safely prune away _id
of all soft-deleted documents as the version map is always in-sync with
the Lucene index.
Relates #40741
Supersedes #42979
This commit modifies InternalTestCluster to allow using client() and
other operations inside a RestartCallback (onStoppedNode typically).
Restarting nodes are now removed from the map and thus all
methods now return the state as if the restarting node does not exist.
This avoids various exceptions stemming from accessing the stopped
node(s).
Adds `equals()` and `hashcode()` methods to `DiscoveryNodeRole` to compare
these objects' values for equality, and adds a field to allow us to distinguish
unknown roles from known ones with the same name and abbreviation, for clearer
test failures.
Relates #43175
With this change we only have to add one line to add a new version.
The intent is to make it less error prone and easier to write a script
to automate the process.
Ignacio Vera
Takuya Kajiwara
David Turner
Armin Braun
Przemyslaw Gomulka
Stuart Tettemer
Jack Conradson
jimczi
Klemen Košir
Martijn van Groningen
Nhat Nguyen
Christoph Büscher
Alan Woodward
Henning Andersen
Zachary Tong
dengweisysu
Igor Motov
Tim Brooks
Tal Levy
Luca Cavanna
Gordon Brown
Jason Tedor
Mark Tozzi
Lee Hinman
David Roberts
Ryan Ernst
Alpar Torok
Yannick Welsch
Colin Goodheart-Smithe
Howard
Gaurav614
Rory Hunter
Tanguy Leroux
Daniel Mitterdorfer
Julie Tibshirani
Eray
Christos Soulios
Andrei Dan
William Brafford
Mayya Sharipova
markharwood
Yunfeng,Wu
Paul Sanwald
Benjamin Trent
dengweisysu
Anup
Andrey Ershov
Simon Willnauer
James Baiera
Alexander Reelsen
Jake Landis
Christos Soulios
Vega
Nick Knize
Michael Basnight
Albert Zaharovits
Dimitris Athanasiou
Bukhtawar
Nikita Glashenko
Hendrik Muhs
David Kyle
Michał Perlak
Ioannis Kakavas
Evgenia Badiyanova
Przemysław Witek
Yu
Mark Vieira
Andrei Stefan
Ryan Ernst
Mark Tozzi
Adrien Grand
paulward24
Yogesh Gaikwad
Zachary Tong
weizijun
Alan Woodward
sandmannn
synical