Switches most search behavior extensions from push (`onModule(SearchModule)`)
to pull (`implements SearchPlugin`). This effort in general gives plugin
authors a much cleaner view of how to extend Elasticsearch and starts to
set up portions of Elasticsearch as "the plugin API". This commit in
particular does that for search-time behavior like customized suggesters,
highlighters, score functions, and significance heuristics.
It also switches most such customization to being done at search module
construction time which is much, much easier to reason about from a testing
perspective. It also helps significantly in the process of de-guice-ing
Elasticsearch's startup.
There are at least two major search time extensions that aren't covered in
this commit that will simply have to wait for the next commit on the topic
because this one has already grown large: custom aggregations and custom
queries. These will likely live in the same SearchPlugin interface as well.
This change adds a createComponents() method to Plugin implementations
which they can use to return already constructed componenents/services.
Eventually this should be just services ("components" don't really do
anything), but for now it allows any object so that preconstructed
instances by plugins can still be bound to guice. Over time we should
add basic services as arguments to this method, but for now I have left
it empty so as to not presume what is a necessary service.
If the allocation decision for a primary shard was NO, this should
cause the cluster health for the shard to go RED, even if the shard
belongs to a newly created index or is part of cluster recovery.
Relates #9126
Previously, index creation would momentarily cause the cluster health to
go RED, because the primaries were still being assigned and activated.
This commit ensures that when an index is created or an index is being
recovered during cluster recovery and it does not have any active
allocation ids, then the cluster health status will not go RED, but
instead be YELLOW.
Relates #9126
this commit moves the most of the http related integ tests out into it's own
`qa/smoke-test-http` project where most of the test can run against the external cluster.
Today when a node is removed the cluster (it leaves or it fails), we
submit a cluster state update task. These cluster state update tasks are
processed serially on the master. When nodes are removed en masse (e.g.,
a rack is taken down or otherwise becomes unavailable), the master will
be slow to process these failures because of the resulting reroutes and
publishing of each subsequent cluster state. We improve this in this
commit by processing the node removals using the cluster state update
task batch processing framework.
Relates #19289
Today we have a bunch of tests that use netty transport for several reasons
these tests use it because they need to run some tcp based transport. Yet, this
couples our tests tightly to the netty implementation which should be tested on it's own.
This change adds a plain socket based blocking TcpTransport implementation that is used by
default in tests if local transport is suppressed or if network is selected.
It also adds another tcp network implementation as a showcase how the interface works.
Lucene IndexWriter asserts on files existing on the filesystem but
some tests throw IOException explicitly on those operatiosn such that
some tests trip asserts. We had this before on InternalEngine#ctor
and added some logic there to catch only a specific assertions based
on some excepition stack analysis. This change applies the same logic
to the IndexWriter#commit part of the engine since it can hit the same
issue.
This also fixes a self-suppression issue in Store.java.
Closes#19356
Several tests required http.enabled where it was unnecessary.
We also had RestMainActionIT which tests what two of our REST tests
test already so I removed it.
The explicit use of http.enabled: false is also obsolet since our
test do that by default.
The DiscoveryNodeService exists to register CustomNodeAttributes which
plugins can add. This is not necessary, since plugins can already add
additional attributes, and use the node attributes prefix.
This change removes the DiscoveryNodeService, and converts the only
consumer, the ec2 discovery plugin, to add the ec2 availability zone
in additionalSettings().
This change removes the ability for guice to have child injectors (and
the entire concept of parent injectors) from our fork of guice. The
methodology for removing was simple: I removed createChildInjector, and
continued to remove methods and members that were unused until my head
was spinning. The motivation for this change is to limit what our fork
of guice gives us access to, so we don't regress and start adding back
more complicated uses.
This adds a test that uses transport implementation and sends random requests
to 3 different nodes, the request handlers maybe forwarding the requests to yet another node
etc. until returning the response. This test basically tests that nodes are not deadlocking
in a distributed fashion.
Repository plugins currently use a lot of custom classes like
RepositoryName and RepositorySettings in order to use guice to construct
repository implementations. But repositories now only really need their
settings to be constructed. Anything else they need (eg a cloud client)
can be constructed within the plugin, instead of via guice.
This change makes repository plugins use the new pull model. It removes
guice from the construction of Repository objects (no more child
injectors) and also from all repository plugins.
This exposes a method to start an action and return a task from
`NodeClient`. This allows reindex to use the injected `Client` rather
than require injecting `TransportAction`s
Today when a thread encounters a fatal unrecoverable error that
threatens the stability of the JVM, Elasticsearch marches on. This
includes out of memory errors, stack overflow errors and other errors
that leave the JVM in a questionable state. Instead, the Elasticsearch
JVM should die when these errors are encountered. This commit causes
this to be the case.
Relates #19272
After #13834 many tests that used Groovy scripts (for good or bad reason) in their tests have been moved in the lang-groovy module and the issue #13837 has been created to track these messy tests in order to clean them up.
This commit moves more tests back in core, removes the dependency on Groovy, changes the scripts in order to use the mocked script engine, and change the tests to integration tests.
This commit moves back some messy tests that have been placed in lang-groovy module in https://github.com/elastic/elasticsearch/pull/13834. It removes the dependency on Groovy plugin as well as change back the tests to integration tests (IT suffix).
It also changes the current MockScriptEngine and MockScriptPlugin to make it easier to use.
The api for snapshot/restore was split up between two interfaces,
Repository and IndexShardRepository. There was also complex
initialization and injection between the two. However, there is always a
one to one relationship between the two.
This change moves the IndexShardRepository api into Repository, as well
as updates the API so as not to require any services to be injected for
sublcasses.
This adds a new proxy for RestHandlers and RestControllers so that requests made
to deprecated REST APIs can be automatically logged in the ES logs via the
DeprecationLogger as well as via a "Warning" header (RFC-7234) for all responses.
Calling indicesService.deleteIndex() can trip an assertion if there is an ongoing cluster state applied in
IndicesClusterStateService. This means that the index is possibly deleted after the failMissingShards
check and before we try creating new and updated shards, tripping an assertion that non-existing shards must
have shard state initializing (started in this case).
This change adds the type of the field in the fieldstats response.
It can be one of the following:
* "integer" for byte, short, integer and long
* "float" for float, half-float and double
* "date" for date
* "ip" for ip
* "text" for string, keyword and text.
Closes#17750
This adds a remote option to reindex that looks like
```
curl -POST 'localhost:9200/_reindex?pretty' -d'{
"source": {
"remote": {
"host": "http://otherhost:9200"
},
"index": "target",
"query": {
"match": {
"foo": "bar"
}
}
},
"dest": {
"index": "target"
}
}'
```
This reindex has all of the features of local reindex:
* Using queries to filter what is copied
* Retry on rejection
* Throttle/rethottle
The big advantage of this version is that it goes over the HTTP API
which can be made backwards compatible.
Some things are different:
The query field is sent directly to the other node rather than parsed
on the coordinating node. This should allow it to support constructs
that are invalid on the coordinating node but are valid on the target
node. Mostly, that means old syntax.
This commit renames writeThrowable to writeException. The situation here
stems from the fact that the StreamOutput method for serializing
Exceptions needs to accept Throwables too as Throwables can be the cause
of serialized Exceptions. Yet, we do not serialize Throwables in the
Error sub-hierarchy in a way that they can be deserialized into their
initial type. This leads to an asymmetry in the StreamOutput method for
serializing Exceptions and the StreamInput method for writing
Excpetions. Namely, the former will accept Throwables but the latter
will only return Exceptions. A goal with the stream methods has always
been symmetry in the method names so that serialization/deserialization
routines appear symmetrical in code. It is this asymmetry on the
input/output types for Exceptions on StreamOutput/StreamInput that
clashes with the desired symmetry of naming. Despite this, we should
favor symmetry in the naming of the methods. This commit renames
StreamOutput#writeThrowable to StreamOutput#writeException which leaves
us with Exception StreamInput#readException and void
StreamOutput#writeException(Throwable).
This commit modifies the initial value of the transport client
round-robin index to a random value so that initial requests are more
likely to not all hit the same node.
Relates #14143
Due to some optimization on the netty layer we had quite some code / cruft
added to the TcpTransport to allow for those optimizations. After cleaning
up BytesReference we can now move this optimization into TcpTransport and
have a simple send method on the implementation layer instead. This commit
adds a CompositeBytesReference that also allows message headers to be written
separately which simplify the header code as well since no skips are needed
anymore.
The top-level class Throwable represents all errors and exceptions in
Java. This hierarchy is divided into Error and Exception, the former
being serious problems that applications should not try to catch and the
latter representing exceptional conditions that an application might
want to catch and handle. This commit renames
org.elasticsearch.cli.UserError to org.elasticsearch.UserException to
make its name consistent with where it falls in this hierarchy.
Relates #19254
Today when reading a malformed operation from the translog, we throw an
assertion error that is immediately caught and wrapped into a translog
corrupted exception. This commit replaces this by electing to directly
throw a translog corrupted exception instead.
Additionally, this cleanup also addressed a double-wrapped translog
corrupted exception. Namely, verifying the checksum can throw a translog
corrupted exception which the existing code would catch and wrap again
in a translog corrupted exception.
Relates #19256
We've been slowly improving batch support in `ClusterService` so service won't need to implement this tricky logic themselves. These good changes are blessed but our logging infra didn't catch up and we now log things like:
```
[2016-07-04 21:51:22,318][DEBUG][cluster.service ] [node_sm0] processing [put-mapping [type1],put-mapping [type1]]:
```
Depending on the `source` string this can get quite ugly (mostly in the ZenDiscovery area).
This PR adds some infra to improve logging, keeping the non-batched task the same. As result the above line looks like:
```
[2016-07-04 21:44:45,047][DEBUG][cluster.service ] [node_s0] processing [put-mapping[type0, type0, type0]]: execute
```
ZenDiscovery waiting on join moved from:
```
[2016-07-04 17:09:45,111][DEBUG][cluster.service ] [node_t0] processing [elected_as_master, [1] nodes joined),elected_as_master, [1] nodes joined)]: execute
```
To
```
[2016-07-04 22:03:30,142][DEBUG][cluster.service ] [node_t3] processing [elected_as_master ([3] nodes joined)[{node_t2}{R3hu3uoSQee0B6bkuw8pjw}{p9n28HDJQdiDMdh3tjxA5g}{127.0.0.1}{127.0.0.1:30107}, {node_t1}{ynYQfk7uR8qR5wKIysFlQg}{wa_OKuJHSl-Oyl9Gis-GXg}{127.0.0.1}{127.0.0.1:30106}, {node_t0}{pweq-2T4TlKPrEVAVW6bJw}{NPBSLXSTTguT1So0JsZY8g}{127.0.0.1}{127.0.0.1:30105}]]: execute
```
As a bonus, I removed all `zen-disco` prefixes to sources from that area.
Node IDs are currently randomly generated during node startup. That means they change every time the node is restarted. While this doesn't matter for ES proper, it makes it hard for external services to track nodes. Another, more minor, side effect is that indexing the output of, say, the node stats API results in creating new fields due to node ID being used as keys.
The first approach I considered was to use the node's published address as the base for the id. We already [treat nodes with the same address as the same](https://github.com/elastic/elasticsearch/blob/master/core/src/main/java/org/elasticsearch/discovery/zen/NodeJoinController.java#L387) so this is a simple change (see [here](https://github.com/elastic/elasticsearch/compare/master...bleskes:node_persistent_id_based_on_address)). While this is simple and it works for probably most cases, it is not perfect. For example, if after a node restart, the node is not able to bind to the same port (because it's not yet freed by the OS), it will cause the node to still change identity. Also in environments where the host IP can change due to a host restart, identity will not be the same.
Due to those limitation, I opted to go with a different approach where the node id will be persisted in the node's data folder. This has the upside of connecting the id to the nodes data. It also means that the host can be adapted in any way (replace network cards, attach storage to a new VM). I
It does however also have downsides - we now run the risk of two nodes having the same id, if someone copies clones a data folder from one node to another. To mitigate this I changed the semantics of the protection against multiple nodes with the same address to be stricter - it will now reject the incoming join if a node exists with the same id but a different address. Note that if the existing node doesn't respond to pings (i.e., it's not alive) it will be removed and the new node will be accepted when it tries another join.
Last, and most importantly, this change requires that *all* nodes persist data to disk. This is a change from current behavior where only data & master nodes store local files. This is the main reason for marking this PR as breaking.
Other less important notes:
- DummyTransportAddress is removed as we need a unique network address per node. Use `LocalTransportAddress.buildUnique()` instead.
- I renamed `node.add_lid_to_custom_path` to `node.add_lock_id_to_custom_path` to avoid confusion with the node ID which is now part of the `NodeEnvironment` logic.
- I removed the `version` paramater from `MetaDataStateFormat#write` , it wasn't really used and was just in the way :)
- TribeNodes are special in the sense that they do start multiple sub-nodes (previously known as client nodes). Those sub-nodes do not store local files but derive their ID from the parent node id, so they are generated consistently.
Once all of these are migrated we'll be able to remove aggregation's
custom "streams" which function that same as NamedWriteable. It also
allows us to make most of the fields on aggregations final which is
rather nice.
Also starts to migrate MultiBucketAggregation.Bucket to Writeable,
allowing the buckets to have immutable parts.
Once all of these are migrated we'll be able to remove aggregation's
custom "streams" which function that same as NamedWriteable. It also
allows us to make most of the fields on aggregations final which is
rather nice.
Today throughout the codebase, catch throwable is used with reckless
abandon. This is dangerous because the throwable could be a fatal
virtual machine error resulting from an internal error in the JVM, or an
out of memory error or a stack overflow error that leaves the virtual
machine in an unstable and unpredictable state. This commit removes
catch throwable from the codebase and removes the temptation to use it
by modifying listener APIs to receive instances of Exception instead of
the top-level Throwable.
Relates #19231
Rename `fields` to `stored_fields` and add `docvalue_fields`
`stored_fields` parameter will no longer try to retrieve fields from the _source but will only return stored fields.
`fields` will throw an exception if the user uses it.
Add `docvalue_fields` as an adjunct to `fielddata_fields` which is deprecated. `docvalue_fields` will try to load the value from the docvalue and fallback to fielddata cache if docvalues are not enabled on that field.
Closes#18943
With this commit we also propagate the `canTripCircuitBreaker`
setting for the main action in TransportBroadcastByNodeAction.
Previously, we set it only on the additional action added by
this handler.
This change removes a handful of classes and methods that were simply
unused. Some of the classes were intermediate abstract classes that
added nothing to the base class they extended.
Primary relocation and indexing concurrently can currently lead to a deadlock situation as indexing operations are blocked on a (bounded) thread pool during the hand-off phase between old and new primary. This change replaces blocking of indexing operations by putting operations that cannot be executed during relocation hand-off in a queue to be executed once relocation completes.
Closes#18553.
The only reason for LifecycleComponent taking a generic type was so that
it could return that type on its start and stop methods. However, this
chaining has no practical necessity. Instead, start and stop can be
void, and a whole bunch of confusing generics disappear.
Before, a repository would maintain an index file (named 'index') per
repository, that contained the current snapshots in the repository.
This file was not atomically written, so repositories had to depend on
listing the blobs in the repository to determine what the current
snapshots are, and only rely on the index file if the repository does
not support the listBlobs operation. This could cause an incorrect view
of the current snapshots in the repository if any prior snapshot delete
operations failed to delete snapshot metadata files.
This commit introduces the atomic writing of the index file, and because
atomic writes are not guaranteed if the file already exists, we write to
a generational index file (index-N, where N is the current generation).
We also maintain an index-latest file that contains the current
generation, for those repositories that cannot list blobs.
Closes#19002
Relates #18156
These are the first aggregations with multiple `InternalAggregation`s
backing the same `AggregationBuilder`. This required a change in the
register method's signature.
NodeService has an "service attributes" map, which is only
set by HttpServer on start/stop. But the only thing it puts in this map
is already available as part of the HttpServer info which is added to
node info requests. This change removes the attributes map and removes
the dependency in HttpServer on NodeService.
BytesReference should be a really simple interface, yet it has a gazillion
ways to achieve the same this. Methods like `#hasArray`, `#toBytesArray`, `#copyBytesArray`
`#toBytesRef` `#bytes` are all really duplicates. This change simplifies the interface
dramatically and makes implementations of it much simpler. All array access has been removed
and is streamlined through a single `#toBytesRef` method. Utility methods to materialize a
compact byte array has been added too for convenience.
Migrates the `stats` and `extended_stats` aggregations and pipeline
aggregations from the special purpose aggregations streams to
`NamedWriteable`. These are the first pipeline aggregations so this
adds the infrastructure to support both streams and `NamedWriteable`s
for pipeline aggregations.
Raise IOException on deleteBlob if the blob doesn't exist
This commit raises an IOException on BlobContainer#deleteBlob
if the blob does not exist, in conformance with the BlobContainer
interface contract. Each implementation of BlobContainer now
conforms to this contract (file system, S3, Azure, HDFS). This
commit also contains blob container tests for each of the
repository implementations.
Closes#18530
We'll migrate to NamedWriteable so we can share code with the rest
of the system. So we can work on this in multiple pull requests without
breaking Elasticsearch in between the commits this change supports
*both* old style `InternalAggregations.stream` serialization and
`NamedWriteable` style serialization. As such it creates about a
half dozen `// NORELEASE` comments that will have to be removed
once the migration is complete.
This also introduces a boolean `transportClient` flag to `SearchModule`
which is used to skip inappropriate registrations for for the
transport client while still registering the things it needs. In
this case that means that the `InternalAggregation` subclasses are
registered with the `NamedWriteableRegistry` but the `AggregationBuilder`
subclasses are not.
Finally, this moves aggregation registration from guice configuration
time to `SearchModule` construction time. This will make it simpler to
work with in the future as we further clean up Elasticsearch's
extension points.
We have long worked to capture different partitioning scenarios in our testing infra. This PR adds a new variant, inspired by the Jepsen blogs, which was forgotten far - namely a partition where one node can still see and be seen by all other nodes. It also updates the resiliency page to better reflect all the work that was done in this area.
Currently there are cases when using TimeIntervalRounding#round() and date1 <
date2 that round(date2) < round(date1). These errors can happen when using a
non-fixed time zone and the values to be rounded are slightly after a time zone
offset change (e.g. DST transition).
Here is an example for the "CET" time zone with a 45 minute rounding interval.
The dates to be rounded are on the left (with utc time stamp), the rounded
values on the right. The error case is marked:
2011-10-30T01:40:00.000+02:00 1319931600000 | 2011-10-30T01:30:00.000+02:00 1319931000000
2011-10-30T02:02:30.000+02:00 1319932950000 | 2011-10-30T01:30:00.000+02:00 1319931000000
2011-10-30T02:25:00.000+02:00 1319934300000 | 2011-10-30T02:15:00.000+02:00 1319933700000
2011-10-30T02:47:30.000+02:00 1319935650000 | 2011-10-30T02:15:00.000+02:00 1319933700000
2011-10-30T02:10:00.000+01:00 1319937000000 | 2011-10-30T01:30:00.000+02:00 1319931000000 *
2011-10-30T02:32:30.000+01:00 1319938350000 | 2011-10-30T02:15:00.000+01:00 1319937300000
2011-10-30T02:55:00.000+01:00 1319939700000 | 2011-10-30T02:15:00.000+01:00 1319937300000
2011-10-30T03:17:30.000+01:00 1319941050000 | 2011-10-30T03:00:00.000+01:00 1319940000000
We should correct this by detecting that we are crossing a transition when
rounding, and in that case pick the largest valid rounded value before the
transition.
This change adds this correction logic to the rounding function and adds this
invariant to the randomized TimeIntervalRounding tests. Also adding the example
test case from above (with corrected behaviour) for illustrative purposes.
Today we have a ton of logic inside the NettyTransport* codebase. The footprint
of the code that has a direct netty dependency is large and alternative implementations
are pretty hard today since they need to know all about our proticol etc.
This change moves most of the code into TCPTransport* baseclasses and moves all
the protocol send code together. The base classes now contain the majority of the logic
while NettyTransport* classes remain to implement the glue code, configuration and optimization.
The factory for ingest processor is generic, but that is only for the
return type of the create mehtod. However, the actual consumer of the
factories only cares about Processor, so generics are not needed.
This change removes the generic type from the factory. It also removes
AbstractProcessorFactory which only existed in order pull the optional
tag from config. This functionality is moved to the caller of the
factories in ConfigurationUtil, and the create method now takes the tag.
This allows the covariant return of the implementation to work with
tests not needing casts.
Previously all rest handlers would take Client in their injected ctor.
However, it was only to hold the client around for runtime. Instead,
this can be done just once in the HttpService which handles rest
requests, and passed along through the handleRequest method. It also
should always be a NodeClient, and other types of Clients (eg a
TransportClient) would not work anyways (and some handlers can be
simplified in follow ups like reindex by taking NodeClient).
`RestHandler`s are highly tied to actions so registering them in the
same place makes sense.
Removes the need to for plugins to check if they are in transport client
mode before registering a RestHandler - `getRestHandlers` isn't called
at all in transport client mode.
This caused guice to throw a massive fit about the circular dependency
between NodeClient and the allocation deciders. I broke the circular
dependency by registering the actions map with the node client after
instantiation.
In 2f638b5a23, support for fractional time
values was removed. While this change is documented, the error message
presented does not give an indication that fractional inputs are not
supported. This commit fixes this by detecting when the input is a time
value that would successfully parse as a double but will not parse as a
long and presenting a clear error message that fractional time values
are not supported.
Relates #19158
When doing a `date_histogram` aggregation with `"format":"epoch_millis"` or
`"format" : "epoch_second"` and using a time zone other than UTC, the
`key_as_string` ouput in the response does not reflect the UTC timestamp that is
used as the key. This happens because when applying the `time_zone` in
DocValueFormat.DateTime to an epoch-based formatter, this adds the time zone
offset to the value being formated. Instead we should adjust the added display
offset to get back the utc instance in EpochTimePrinter.
Closes#19038
As some plugins are becoming big now, it is hard for the user to know, if the plugin
is being downloaded or just nothing happens.
This commit adds a progress bar during download, which can be disabled by using the `-q`
parameter.
In addition this updates to jimfs 1.1, which allows us to test the batch mode, as adding
security policies are now supported due to having jimfs:// protocol support in URL stream
handlers.
We have a ton of tests for PagedBytesReference but not really many for the other
implementation of BytesReference. This change factors out a basic AbstractBytesReferenceTestCase
that simplifies testing other implementations. It also caught a couple of bug here and there like
a missing mask when reading bytes as ints in PagedBytesReference.
The ChannelBuffer interface today leaks into the BytesReference abstraction
which causes a hard dependency on Netty across the board. This chance moves
this dependency and all BytesReference -> ChannelBuffer conversion into
NettyUtlis and removes the abstraction leak on BytesReference.
This change also removes unused methods on the BytesReference interface
and simplifies access to internal pages.
This change allows Plugin implementions to implement Closeable when they
have resources that should be released. As a first example of how this
can be used, I switched over ingest plugins, which just had the geoip
processor. The ingest framework had chains of closeable to support this,
which is now removed.
Stored scripts are pulled from the cluster state, and the current api
requires passing the ClusterState on each call to compile. However, this
means every user of the ScriptService needs to depend on the
ClusterService. Instead, this change makes the ScriptService a
ClusterStateListener. It also simplifies tests a lot, as they no longer
need to create fake cluster states (except when testing stored scripts).
Today we have several deprecated methods, leaking netty interfaces, support for
multiple compressors on the compressor interface. The netty interface can simply
be replaced by BytesReference which we already have an implementation for, all the
others are not used and are removed in this commit.
The plan for persistent node ids ( #17811 ) is to tie the node identity to a file stored in it's data folders. As such it becomes important that nodes in our testing infra have better affinity with their data folders and that their data folders are not cleaned underneath them. The first is important because we fix the random seed used for node id generation (for reproducibility) and allowing the same node to use two different data folders causes two separate nodes to have the same id, which prevents the cluster from forming. The second is important, for example, where a full cluster restart / single node restart need to maintain node identity and wiping the data folders at the wrong moment prevents this.
Concretely this commit does the following:
1) Remove previous attempts to have data folder per role using a prefix. This wasn't effective as it was using the data paths settings which are only used for part of the runs. An attempt to completely separate the paths via the home dir failed due to assumptions made by index custom path about node data folder ordinal uniqueness (see #19076)
2) Change full cluster restarts to start up nodes in the same order their were first created in, only randomly swapping nodes with the same roles.
3) Change test cluster reset methods to first shutdown the unneeded nodes and then re-start the shared nodes that were shut down, so they'll reclaim their data folders.
4) Improve data folder wiping logic and make sure it wipes only folders of "offline" nodes.
5) Add some very basic tests
Thanks to https://github.com/elastic/elasticsearch/pull/19088 the settings are now validated against dynamic updaters on the master.
Though only the new settings are applied to the IndexService created for the validation.
Because of this we cannot check the transition from one value to another in a dynamic updaters.
This change creates the IndexService from the current settings and validates that the new dynamic settings
can replace the current settings.
This change also removes the validation of dynamic settings when an index is opened.
The validation should have occurred when the settings have been updated.
Instead of implementing onModule(ActionModule) to register actions,
this has plugins implement ActionPlugin to declare actions. This is
yet another step in cleaning up the plugin infrastructure.
While I was in there I switched AutoCreateIndex and DestructiveOperations
to be eagerly constructed which makes them easier to use when
de-guice-ing the code base.
This commit modifies TimeValue parsing to keep the input time unit. This
enables round-trip parsing from instances of String to instances of
TimeValue and vice-versa. With this, this commit removes support for the
unit "w" representing weeks, and also removes support for fractional
values of units (e.g., 0.5s).
Relates #19102
Today all settings are only validated against their validators
that are available when settings are registered. Yet, some settings updaters
have validators that are dynamic ie. their validation depends on other variables
that are only available at runtime. We do not run those validators when settings
are updated causing index updates to fail on the data nodes instead of on the master.
Relates to #19046
Previous to this change the unresolved extended bounds was passed into the histogram aggregator which meant extendedbounds.min and extendedbounds.max was passed through as null. This had two effects on the histogram aggregator:
1. If the histogram aggregator was unmapped across all shards, the reduce phase would not add buckets for the extended bounds and the response would contain zero buckets
2. If the histogram aggregator was not unmapped in some shards, the reduce phase might sometimes chose to reduce based on the unmapped shard response and therefore the extended bounds would be ignored.
This change resolves the extended bounds in the unmapped case and solves the above two issues.
Closes#19009
#18938 has changed the timing in which we send out to nodes to fetch their shard stores. Instead of doing this after the cluster state resulting of the node's join was published, #18938 made it be sent concurrently to the publishing processes. This revealed a couple of points where the shard store fetching is dependent of the current state of affairs of the cluster state, both on the master and the data nodes. The problem discovered were already present without #18938 but required a failure/extreme situations to make them happen.This PR tries to remove as much as possible of these dependencies making shard store fetching simpler and make the way to re-introduce #18938 which was reverted.
These are the notable changes:
1) Allow TransportNodesAction (of which shard store fetching is derived) callers to supply concrete disco nodes, so it won't need the cluster state to resolve them. This was a problem because the cluster state containing the needed nodes was not yet made available through ClusterService. Note that long term we can expect the rest layer to resolve node ids to concrete nodes, making this mode the only one needed.
2) The data node relied on the cluster state to have the relevant index meta data so it can find data when custom paths are used. We now fall back to read the meta data from disk if needed.
3) The data node was relying on it's own IndexService state to indicate whether the data it has corresponds to an existing allocation. This is of course something it can not know until it got (and processed) the new cluster state from the master. This flag in the response is now removed. This is not a problem because we used that flag to protect against double assigning of a shard to the same node, but we are already protected from it by the allocation deciders.
4) I removed the redundant filterNodeIds method in TransportNodesAction - if people want to filter they can override resolveRequest.
This commit fixes several NPEs caused by implicitly performing a get request for a document that exists with its _source disabled and then trying to access the source. Instead of causing an NPE the following queries will throw an exception with a "source disabled" message (similar behavior as if the document does not exist).:
- GeoShape query for pre-indexed shape (throws IllegalArgumentException)
- Percolate query for an existing document (throws IllegalArgumentException)
A Terms query with a lookup will ignore the document if the source does not exist (same as if the document does not exist).
GET and HEAD requests for the document _source will return a 404 if the source is disabled (even if the document exists).
Instead of plugins calling `registerTokenizer` to extend the analyzer
they now instead have to implement `AnalysisPlugin` and override
`getTokenizer`. This lines up extending plugins in with extending
scripts. This allows `AnalysisModule` to construct the `AnalysisRegistry`
immediately as part of its constructor which makes testing anslysis
much simpler.
This also moves the default analysis configuration into `AnalysisModule`
which is how search is setup.
Like `ScriptModule`, `AnalysisModule` no longer extends `AbstractModule`.
Instead it is only responsible for building `AnslysisRegistry`. We still
bind `AnalysisRegistry` but we only do so in `Node`. This is means it
is available at module construction time so we slowly remove the need to
bind it in guice.
Today when parsing the timeout field in a query body, if time units are
supplied the parser throws a NumberFormatException. Addtionally, the
parsing allows the timeout field to not specify units (it assumes
milliseconds). This commit fixes this behavior by not only allowing time
units to be specified but requires time units to be specified. This is
consistent with the documented behavior and the behavior in 2.x.
Relates #19077
This commit fixes several NPEs caused by implicitly performing a get request for a document that exists with its _source disabled and then trying to access the source. Instead of causing an NPE the following queries will throw an exception with a "source disabled" message (similar behavior as if the document does not exist).:
- GeoShape query for pre-indexed shape (throws IllegalArgumentException)
- Percolate query for an existing document (throws IllegalArgumentException)
A Terms query with a lookup will ignore the document if the source does not exist (same as if the document does not exist).
GET and HEAD requests for the document _source will return a 404 if the source is disabled (even if the document exists).
If we don't care about scoring then for certain candidate matches we can be certain, that if they are a candidate match,
then they will always match. So verifying these queries with the MemoryIndex can be skipped.
Currently we don't throw an error when there is more than one query clause
specified in a must/must_not/should/filter object of the bool query without
using array notation, e.g.:
{ "bool" : { "must" : { "match" : { ... }, "match": { ... }}}}
In these cases, only the first query will be parsed and further behaviour is
unspecified, possibly leading to silently ignoring the rest of the query.
Instead we should throw a ParsingException if we don't encounter an END_OBJECT
token after having parsed the query clause.
Global cluster blocks were not checked if an empty set of indices were passed as argument to the block checking method. This would lead to issues where some operations are already executed on a cluster before it has recovered its cluster state.
This commit upgrades JNA from version 4.1.0 to 4.2.2. Additionally, this
dependency is now non-optional as JNA is dual-licensed with Apache
License 2.0 since JNA 4.0.0.
Relates #19045
This is the same as what Lucene does for its analysis factories, and we hawe
tests that make sure that the elasticsearch factories are in sync with
Lucene's. This is a first step to move forward on #9978 and #18064.
I suspect recent failures are due to the fact that the cache disables itself
when there is contention. This runs assertions in an assertBusy block since
they should eventually succeed.
This commit moves template support out of the Search API to its own dedicated Search Template API in the lang-mustache module. It provides a new SearchTemplateAction that can be used to render templates before it gets delegated to the usual Search API. The current REST endpoint are identical, but the Render Search Template endpoint now uses the same Search Template API with a new "simulate" option. When this option is enabled, the Search Template API only renders template and returns immediatly, without executing the search.
Closes#17906
There are secondary issues with async shard fetch going out to nodes before they have a cluster state published to them that need to be solved first. For example:
- async fetch uses transport node action that resolves nodes based on the cluster state (but it's not yet exposed by ClusterService since we inline the reroute)
- after disruption nodes will respond with an allocated shard (they didn't clean up their shards yet) which throws of decisions master side.
- nodes deed the index meta data in question but they may not have if they didn't recieve the latest CS
If a plugin declares `onModule(SomethingThatIsntAModule)` then refuse
to start. Before this commit we just logged a warning that flies by in
the console and is easy to miss. You can't miss refusing to start!
This commit removes duplicated methods for reading byte arrays in
StreamInput. One method would read a byte array by repeatedly calling
StreamInput#readByte in a loop, and the other would just call
StreamInput#readBytes. In this commit, we remove the former.
Relates #19023
`stored_fields` parameter will no longer try to retrieve fields from the _source but will only return stored fields.
`fields` will throw an exception if the user uses it.
Add `docvalue_fields` as an adjunct to `fielddata_fields` which is deprecated. `docvalue_fields` will try to load the value from the docvalue and fallback to fielddata cache if docvalues are not enabled on that field.
Closes#18943
This changes adds a MapperPlugin interface which allows pull style
retrieval of mappers and metadata mappers added by plugins. For now, I
have kept the MapperRegistry, but this should be removed in the future
as it is just a silly container for 2 maps which could themselves be
passed around.
This commit refactors InternalEngine#innerIndex and
InternalEngine#innerDelete to collapse some common logic into a single
method. This has the advantage that it shrinks the bytecode size of
InternalEngine#innerIndex so that it can be inlined.
Makes ScriptModule just a plain class that manages building the
ScriptSettings and ScriptService from plugins. When we *need*
to bind ScriptService with guice we bind it in a lambda.
- fix it so that processors with the `ignore_failure` option do not
record their exception in the response
- add more tests to make empty `on_failure`. This now throws an
exception
Today we only throw random exceptions on the translog writer. This commit
extends it to also throw exceptions during checkpoint writing etc to test
if the correct flags are provided to open method etc.
This makes this sequence:
```
curl -XDELETE localhost:9200/source,dest?pretty
for i in $( seq 1 100 ); do
curl -XPOST localhost:9200/source/test -d'{"test": "test"}'; echo
done
curl localhost:9200/_refresh?pretty
curl -XPOST 'localhost:9200/_reindex?pretty&wait_for_completion=false' -d'{
"source": {
"index": "source"
},
"dest": {
"index": "dest"
}
}'
curl 'localhost:9200/_tasks/Jsyd6d9wSRW-O-NiiKbPcQ:237?wait_for_completion&pretty'
```
Return task *AND* the response to the user.
This also renames "result" to "response" in the persisted task info
to line it up with how we name the objects in Elasticsearch.
This commit modifies reading the Elasticsearch jar manifest via the URL
instead of converting the URL to an NIO path for increased portability.
Relates #18999
The default similarity was set to `classic` which refers to TFIDF and has not been moved after the upgrade to Lucene 6.
Though moving to BM25 could have some downside for queries that relies on coordination factor (match_query, multi_match_query) ?
relates #18944
```
> Throwable #1: java.lang.RuntimeException: file handle leaks: [SeekableByteChannel(/var/lib/jenkins/workspace/elastic+elasticsearch+master+g1gc/core/build/testrun/integTest/J0/temp/org.elasticsearch.search.suggest.CompletionSuggestSearch2xIT_518545A20D129C8C-001/tempDir-001/data/nodes/1/indices/4sTECv6WSJOJsw9L4CGamg/0/index/segments_1), SeekableByteChannel(/var/lib/jenkins/workspace/elastic+elasticsearch+master+g1gc/core/build/testrun/integTest/J0/temp/org.elasticsearch.search.suggest.CompletionSuggestSearch2xIT_518545A20D129C8C-001/tempDir-001/data/nodes/1/indices/4sTECv6WSJOJsw9L4CGamg/0/index/segments_1)]
> at __randomizedtesting.SeedInfo.seed([518545A20D129C8C]:0)
> at org.apache.lucene.mockfile.LeakFS.onClose(LeakFS.java:63)
> at org.apache.lucene.mockfile.FilterFileSystem.close(FilterFileSystem.java:77)
> at org.apache.lucene.mockfile.FilterFileSystem.close(FilterFileSystem.java:78)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.Exception
> at org.apache.lucene.mockfile.LeakFS.onOpen(LeakFS.java:46)
> at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
> at org.apache.lucene.mockfile.HandleTrackingFS.newByteChannel(HandleTrackingFS.java:271)
> at org.apache.lucene.mockfile.FilterFileSystemProvider.newByteChannel(FilterFileSystemProvider.java:212)
> at org.apache.lucene.mockfile.HandleTrackingFS.newByteChannel(HandleTrackingFS.java:240)
> at java.nio.file.Files.newByteChannel(Files.java:361)
> at java.nio.file.Files.newByteChannel(Files.java:407)
> at org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
> at org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
> at org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2695)
> at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:737)
> at org.apache.lucene.store.FilterDirectory.openInput(FilterDirectory.java:94)
> at org.elasticsearch.common.lucene.Lucene$1.doBody(Lucene.java:237)
> at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:685)
> at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:637)
> at org.elasticsearch.common.lucene.Lucene.checkSegmentInfoIntegrity(Lucene.java:242)
> at org.elasticsearch.index.store.Store$MetadataSnapshot.loadMetadata(Store.java:847)
> at org.elasticsearch.index.store.Store$MetadataSnapshot.<init>(Store.java:740)
> at org.elasticsearch.index.store.Store.getMetadata(Store.java:260)
> at org.elasticsearch.index.store.Store.getMetadata(Store.java:240)
> at org.elasticsearch.index.shard.IndexShard.doCheckIndex(IndexShard.java:1310)
> at org.elasticsearch.common.util.CancellableThreads.executeIO(CancellableThreads.java:102)
> at org.elasticsearch.index.shard.IndexShard.checkIndex(IndexShard.java:1288)
> at org.elasticsearch.index.shard.IndexShard.internalPerformTranslogRecovery(IndexShard.java:921)
> at org.elasticsearch.index.shard.IndexShard.skipTranslogRecovery(IndexShard.java:964)
> at org.elasticsearch.indices.recovery.RecoveryTarget.prepareForTranslogOperations(RecoveryTarget.java:297)
> at
```
The MMapDirectory has a switch that allows the content of files to be loaded
into the filesystem cache upon opening. This commit exposes it with the new
`index.store.pre_load` setting.
Today we only emit that the setting wasn't found unless we have
some DYM suggestions. Yet, if a setting is not found at all and there
are no suggestions due to typos it's likely a removed setting or the plugin
that is supposed to be configured is not installed.
This commit adds some info text to the exception to help the user debugging
the problem before opening bugreports.
Instead of emitting:
`unknown setting [foo.bar]`
we now emit:
`unknown setting [foo.bar] please check the migration guide for removed settings and ensure that the plugin you are configuring is installed`
Relates to #18663
If someone sets `index.shard.check_on_startup`, indexing start up time can be slow (by design, it diligently goes and checks all data). If for some reason the shard is closed in that time, the store ref is kept around and prevents a new shard copy to be allocated to this node via the shard level locks. This is especially tricky if the shard is close due to a cancelled recovery which may re-restart soon.
This commit adds a cancellable threads instance to each IndexShard and perform index checking underneath it, so it can be cancelled on close.
We pretended to be able to ackt like a different version node for so long it's
time to be honest and remove this ability. It's just confusing and where needed
and tested we should build dedicated extension points.
This commit introduce unit testing infrastructure to test replication operations using real index shards. This is infra is complementary to the full integration tests and unit testing of ReplicationOperation we already have. The new ESIndexLevelReplicationTestCase base makes it easier to test and simulate failure mode that require real shards and but do not need the full blow stack of a complete node.
The commit also add a simple "nothing is wrong" test plus a test that checks we don't drop docs during the various stages of recovery.
For now, only single doc indexing is supported but this can be easily extended in the future.
This class was forked in 0.20 to remove a volatile keyword. While there
is no issue attached to the commit, no evidence of the criticality of the
change nor does it seem to be correct since we set this value internally as well
I think this class should be used as is from joda time even if we have to pay
the price of volatile reads. We can't do 3rd party optimization in our codebase that
way it just not maintainable.
This was added in 2280915d3c
This commit removes the search preference _only_node as the same
functionality can be obtained by using the search preference
_only_nodes. This commit also adds a test that ensures that _only_nodes
will continue to support specifying node IDs.
Relates #18875
In the past, we had the semantics where the very first cluster state a node processed after joining could not contain shard assignment to it. This was to make sure the node cleans up local / stale shard copies before receiving new ones that might confuse it. Since then a lot of work in this area, most notably the introduction of allocation ids and #17270 . This means we don't have to be careful and just reroute in the same cluster state change where we process the join, keeping things simple and following the same pattern we have in other places.
This change removes some unnecessary dependencies from ClusterService
and cleans up ClusterName creation. ClusterService is now not created
by guice anymore.
The NodeJoinController is responsible for processing joins from nodes, both normally and during master election. For both use cases, the class processes incoming joins in batches in order to be efficient and to accumulated enough joins (i.e., >= min_master_nodes) to seal an election and ensure the new cluster state can be committed. Since the class was written, we introduced a new infrastructure to support batch changes to the cluster state at the `ClusterService` level. This commit rewrites NodeJoinController to use that infra and be simpler.
The PR also introduces a new concept to ClusterService allowing to submit tasks in batches, guaranteeing that all tasks submitted in a batch will be processed together (potentially with more tasks). On top of that I added some extra safety checks to the ClusterService, around potential double submission of task objects into the queue.
This is done in preparation to revive #17811
Today we have a push model for registering basically anything. All our extension points
are defined on modules which we pass in to plugins. This is harder to maintain and adds
unnecessary dependencies on the modules itself. This change moves towards a pull model
where the plugin offers a getter kind of method to get the extensions. This will also
help in the future if we need to pass dependencies to the extension points which can
easily be defined on the method as arguments if a pull model is used.
Currently the error messages for failing tests in the TimeZoneRoundingTests test
suite are hard to read because they usually report the actual end expected date
in milliseconds utc (e.g. "Expected: <1414270860000L> but: was <1414270800000L>".
This makes failing tests hard to read.
This change introduces a new Matcher that can be used for equality checks for
long dates but reports the error both as a formated date string according to
some time zone and also as the actual long values, so you get messages like
"Expected: 2014-10-26T00:01:00.000+03:00 [1414270860000] but: was
"2014-10-26T00:00:00.000+03:00 [1414270800000]".
Also clean cleaning up some helper methods and generally simplifying a few test
cases. Otherwise this change shouldn't affect either the scope of the test or
anything about the rounding implementation itself.
They have been implemented in https://issues.apache.org/jira/browse/LUCENE-7289.
Ranges are implemented so that the accuracy loss only occurs at index time,
which means that if you are searching for values between A and B, the query will
match exactly all documents whose value rounded to the closest half-float point
is between A and B.
Registering a script engine or native scripts still uses Guice today
and is much more complicated than needed. This change moves to a pull
based model where script plugins have to implement a dedicated interface
`ScriptPlugin` and defines simple getter returning instances rather than
classes.
In 2.0 we added plugin descriptors which require defining a name and
description for the plugin. However, we still have name() and
description() which must be overriden from the Plugin class. This still
exists for classpath plugins. But classpath plugins are mainly for
tests, and even then, referring to classpath plugins with their class is
a better idea. This change removes name() and description(), replacing
the name for classpath plugins with the full class name.
This interface used to have dedicated methods to prevent calling execute
methods. These methods are unnecessary as the checks can simply be
done inside the execute methods itself. This simplifies the interface
as well as its usage.
With this commit we exclude certain HTTP requests that are needed to inspect the cluster
from HTTP request limiting to ensure these commands are processed even in critical
memory conditions.
Relates #17951, relates #18145, closes#18833
When installing plugins, we first try the elastic download service for
official plugins, then try maven coordinates, and finally try the
argument as a url. This can lead to confusing error messages about
unknown protocols when eg an official plugin name is mispelled. This
change adds a heuristic for determining if the argument in the final
case is in fact a url that we should try, and gives a simplified error
message in the case it is definitely not a url.
closes#17226
The search preference _prefer_node allows specifying a single node to
prefer when routing a request. This functionality can be enhanced by
permitting multiple nodes to be preferred. This commit replaces the
search preference _prefer_node with the search preference _prefer_nodes
which supplants the former by specifying a single node and otherwise
adds functionality.
Relates #18872
This caches FieldStats at the field level. For one off requests or for
few indicies this doesn't save anything, but when there are 30 indices,
5 shards, 1 replica, 100 parallel requests this is about twice as fast
as not caching. I expect lots of usage won't see much benefit from this
but pointing kibana to a cluster with many indexes and shards, will be
faster.
Closes#18717
This adds a get task API that supports GET /_tasks/${taskId} and
removes that responsibility from the list tasks API. The get task
API supports wait_for_complation just as the list tasks API does
but doesn't support any of the list task API's filters. In exchange,
it supports falling back to the .results index when the task isn't
running any more. Like any good GET API it 404s when it doesn't
find the task.
Then we change reindex, update-by-query, and delete-by-query to
persist the task result when wait_for_completion=false. The leads
to the neat behavior that, once you start a reindex with
wait_for_completion=false, you can fetch the result of the task by
using the get task API and see the result when it has finished.
Also rename the .results index to .tasks.
There are edge cases where rounding a date to a certain interval using a time
zone with DST shifts can currently cause the rounded date to be bigger than the
original date. This happens when rounding a date closely after a DST start and
the rounded date falls into the DST gap.
Here is an example for CET time zone, where local time is set forward by one
hour at 2016-03-27T02:00:00+01:00 to 2016-03-27T03:00:00.000+02:00:
The date 2016-03-27T03:01:00.000+02:00 (1459040460000) which is just after the
DST change is first converted to local time (1459047660000). If we then apply
interval rounding for a 14m interval in local time, this takes us to
1459047240000, which unfortunately falls into the DST gap. When converting
this back to UTC, joda provides options to throw exceptions on illegal dates
like this, or correct this by adjusting the date to the new time zone offset.
We currently do the later, but this leads to converting this illegal date back
to 2016-03-27T03:54:00.000+02:00 (1459043640000), giving us a date that is
larger than the original date we wanted to round.
This change fixes this by using the "strict" option of 'convertLocalToUTC()'
to detect rounded dates that fall into the DST gap. If this happens, we can use
the time of the DST change instead as the interval start.
Even before this change, intervals around DST shifts like this can be shorter
than the desired interval. This, for example, happens when the requested
interval width doesn't completely fit into the remaining time span when the DST
shift happens. For example, using a 14m interval in UTC+1 (CET before DST
starts) leads to the following valid rounding values around the time where DST
happens:
2016-03-27T01:30:00+01:00
2016-03-27T01:44:00+01:00
2016-03-27T01:58:00+01:00
2016-03-27T02:12:00+01:00
2016-03-27T02:26:00+01:00
...
while the rounding values in UTC+2 (CET after DST start) are placed like this
around the same time:
2016-03-27T02:40:00+02:00
2016-03-27T02:54:00+02:00
2016-03-27T03:08:00+02:00
2016-03-27T03:22:00+02:00
...
From this we can see then when we switch from UTC+1 to UTC+2 at 02:00 the last
rounding value in UTC+1 is at 01:58 and the first valid one in UTC+2 is at
03:08, so even if we decide to put all the dates in between into one rounding
interval, it will only cover 10 minutes. With this change we choose to use the
moment of DST shift as an aditional interval separator, leaving us with a 2min
interval from [01:58,02:00) before the shift and an 8min interval from
[03:00,03:08) after the shift.
This change also adds tests for the above example and adds randomization to the
existing TimeIntervalRounding tests.
By default the number of searches msearch executes is capped by the number of
nodes multiplied with the default size of the search threadpool. This default can be
overwritten by using the newly added `max_concurrent_searches` parameter.
Before the msearch api would concurrently execute all searches concurrently. If many large
msearch requests would be executed this could lead to some searches being rejected
while other searches in the msearch request would succeed.
The goal of this change is to avoid this exhausting of the search TP.
Closes#17926
Writeable is better for immutable objects like TimeValue.
Switch to writeZLong which takes up less space than the original
writeLong in the majority of cases. Since we expect negative
TimeValues we shouldn't use
writeVLong.
Today we use a random source of UUIDs for assigning allocation IDs,
cluster IDs, etc. Yet, the source of randomness for this is not
reproducible in tests. Since allocation IDs end up as keys in hash maps,
this means allocation decisions and not reproducible in tests and this
leads to non-reproducible test failures. This commit modifies the
behavior of random UUIDs so that they are reproducible under tests. The
behavior for production code is not changed, we still use a true source
of secure randomness but under tests we just use a reproducible source
of non-secure randomness.
It is important to note that there is a test,
UUIDTests#testThreadedRandomUUID that relies on the UUIDs being truly
random. Thus, we have to modify the setup for this test to use a true
source of randomness. Thus, this is one test that will never be
reproducible but it is intentionally so.
Relates #18808
When trying to restore a snapshot of an index created in a previous
version of Elasticsearch, it is possible that empty shards in the
snapshot have a segments_N file that has an unsupported Lucene version
and a missing checksum. This leads to issues with restoring the
snapshot. This commit handles this special case by avoiding a restore
of a shard that has no data, since there is nothing to restore anyway.
Closes#18707
Testability of ICSS is achieved by introducing interfaces for IndicesService, IndexService and IndexShard. These interfaces extract all relevant methods used by ICSS (which do not deal directly with store) and give the possibility to easily mock all the store behavior away in the tests (and cuts down on dependencies).
Add Aggregation profiling initially only be for the shard phases (i.e. the reduce phase will not be profiled in this change)
This change refactors the query profiling class to extract abstract classes where it is useful for other profiler types to share code.
It presented as listeners never being called if you refresh at the same
time as the listener is added. It was caught rarely by
testConcurrentRefresh. mostly this is removing code and adding a comment:
```
Note that it is not safe for us to abort early if we haven't advanced the
position here because we set and read lastRefreshedLocation outside of a
synchronized block. We do that so that waiting for a refresh that has
already passed is just a volatile read but the cost is that any check
whether or not we've advanced the position will introduce a race between
adding the listener and the position check. We could work around this by
moving this assignment into the synchronized block below and double
checking lastRefreshedLocation in addOrNotify's synchronized block but
that doesn't seem worth it given that we already skip this process early
if there aren't any listeners to iterate.
```
This commit addresses a performance issue in
IndicesClusterStateService#applyDeletedShards. Namely, the current
implementation is O(number of indices * number of shards). This is
because of an outer loop over the indices and an inner loop over the
assigned shards, all to check if a shard is in the outer index. Instead,
we can group the shards by index, and then just do a map lookup for each
index.
Testing this on a single-node with 2500 indices, each with 2 shards,
creating an index before this optimization takes 0.90s and after this
optimization takes 0.19s.
Relates #18788
You declare them like
```
static {
PARSER.declareInt(optionalConstructorArg(), new ParseField("animal"));
}
```
Other than being optional they follow all of the rules of regular
`constructorArg()`s. Parsing an object with optional constructor args
is going to be slightly less efficient than parsing an object with
all required args if some of the optional args aren't specified because
ConstructingObjectParser isn't able to build the target before the
end of the json object.
Due to an error in our current TimeIntervalRounding, two dates can
round to the same key, even when they are 1h apart when using
short interval roundings (e.g. 20m) and a time zone with DST change.
Here is an example for the CET time zone:
On 25 October 2015, 03:00:00 clocks are turned backward 1 hour to
02:00:00 local standard time. The dates
"2015-10-25T02:15:00+02:00" (1445732100000) (before DST end) and
"2015-10-25T02:15:00+01:00" (1445735700000) (after DST end)
are thus 1h apart, but currently they round to the same value
"2015-10-25T02:00:00.000+01:00" (1445734800000).
This violates an important invariant of rounding, namely that the
rounded value must be less or equal to the value that is rounded.
It also leads to wrong histogram bucket counts because documents in
[02:00:00+02:00, 02:20:00+02:00) go to the same bucket as documents
from [02:00:00+01:00, 02:20:00+01:00).
The problem happens because in TimeIntervalRounding#roundKey() we
need to perform the rounding operation in local time, but on
converting back to UTC we don't honor the original values time zone
offset. This fix changes that and adds tests both for DST start and
DST end as well as a test that demonstrates what happens to bucket
sizes when the dst change is not evently divisibly by the interval.
Previously Elasticsearch used $DATA_DIR/$CLUSTER_NAME/nodes for the path
where data is stored, this commit changes that to be $DATA_DIR/nodes.
On startup, if the old folder structure is detected it will be used.
This behavior will be removed in Elasticsearch 6.0
Resolves#17810
Folded grok processor into ingest-common module.
The rest tests have been moved to ingest-common module as well, because these tests don't run in the rest-api-spec module but in the distribution:integ-test-zip module
and adding a test plugin there felt just wrong to me. I think this is ok. I left a tiny ingest rest test behind in that tests with an empty pipeline.
Removed messy tests, these tests were already covered in the rest tests
Added ingest test plugin in test infra so that each module testing integration with ingest doesn't need write its own plugin
Moved reindex ingest tests to qa module
Closes#18490
API:
```
curl -XGET 'localhost:9200/twitter/tweet/_search?scroll=1m' -d '{
"slice": {
"field": "_uid", <1>
"id": 0, <2>
"max": 10 <3>
},
"query": {
"match" : {
"title" : "elasticsearch"
}
}
}
```
<1> (optional) The field name used to do the slicing (_uid by default)
<2> The id of the slice
By default the splitting is done on the shards first and then locally on each shard using the _uid field
with the following formula:
`slice(doc) = floorMod(hashCode(doc._uid), max)`
For instance if the number of shards is equal to 2 and the user requested 4 slices then the slices 0 and 2 are assigned
to the first shard and the slices 1 and 3 are assigned to the second shard.
Each scroll is independent and can be processed in parallel like any scroll request.
Closes#13494
This commit modifies the bootstrap check invocations in the might fork
tests to use the underlying test name when setting up the logging prefix
when invoking the bootstrap checks. This is done to give clear logs in
case of failure.
Today we allow to shrink to 1 shard but that might not be possible due to
too many document or a single shard doesn't meet the requirements for the index.
The logic can be expanded to N shards if the source index shards is a multiple of N.
This guarantees that there are not hotspots created due to different number of shards
being shrunk into one.
This commit fixes a compilation issue in RefreshListenersTests that
arose from code being integrated into master, and then a large pull
request refactoring the handling of thread pools was later merged into
master.
This commit adds a bootstrap check for the JVM option OnError being in
use and seccomp being enabled. These two options are incompatible
because OnError allows the user to specify an arbitrary program to fork
when the JVM encounters an fatal error, and seccomp enables system call
filters that prevents forking.
This commit refactors the handling of thread pool settings so that the
individual settings can be registered rather than registering the top
level group. With this refactoring, individual plugins must now register
their own settings for custom thread pools that they need, but a
dedicated API is provided for this in the thread pool module. This
commit also renames the prefix on the thread pool settings from
"threadpool" to "thread_pool". This enables a hard break on the settings
so that:
- some of the settings can be given more sensible names (e.g., the max
number of threads in a scaling thread pool is now named "max" instead
of "size")
- change the soft limit on the number of threads in the bulk and
indexing thread pools to a hard limit
- the settings names for custom plugins for thread pools can be
prefixed (e.g., "xpack.watcher.thread_pool.size")
- remove dynamic thread pool settings
Relates #18674
This commit adds a bootstrap check for the JVM option OnOutOfMemoryError
being in use and seccomp being enabled. These two options are
incompatible because OnOutOfMemoryError allows the user to specify an
arbitrary program to fork when the JVM encounters an
OutOfMemoryError, and seccomp enables system call filters that prevents
forking.
This commit also adds support for bootstrap checks that are always
enforced, whether or not Elasticsearch is in production mode.
This adds support for setting the refresh request parameter to
`wait_for` in the `index`, `delete`, `update`, and `bulk` APIs. When
`refresh=wait_for` is set those APIs will not return until their
results have been made visible to search by a refresh.
Also it adds a `forced_refresh` field to the response of `index`,
`delete`, `update`, and to each item in a bulk response. This will
be true for requests with `?refresh` or `?refresh=true` and will be
true for some requests (see below) with `refresh=wait_for` but ought
to otherwise always be false.
`refresh=wait_for` is implemented as a list of
`Tuple<Translog.Location, Consumer<Boolean>>`s in the new `RefreshListeners`
class that is managed by `IndexShard`. The dynamic, index scoped
`index.max_refresh_listeners` setting controls a maximum number of
listeners allowed in any shard. If more than that many listeners
accumulate in the engine then a refresh will be forced, the thread that
adds the listener will be blocked until the refresh completes, and then the
listener will be called with a `forcedRefresh` flag so it knows that it was
the "straw that broke the camel's back". These listeners are only used by
`refresh=wait_for` and that flag manifests itself as `forced_refresh` being
`true` in the response.
About half of this change comes from piping async-ness down to the appropriate
layer in a way that is compatible with the ongoing with with sequence ids.
Closes#1063
You can look up the winding story of all the commits here:
https://github.com/elastic/elasticsearch/pull/17986
Here are the commit messages in case they are intersting to you:
commit 59a753b89109828d2b8f0de05cb104fc663cf95e
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Jun 6 10:18:23 2016 -0400
Replace a method reference with implementing an interface
Saves a single allocation and forces more commonality
between the WriteResults.
commit 31f7861a85b457fb7378a6f27fa0a0c171538f68
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Jun 6 10:07:55 2016 -0400
Revert "Replace static method that takes consumer with delegate class that takes an interface"
This reverts commit 777e23a6592c75db0081a53458cc760f4db69507.
commit 777e23a6592c75db0081a53458cc760f4db69507
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Jun 6 09:29:35 2016 -0400
Replace static method that takes consumer with delegate class that takes an interface
Same number of allocations, much less code duplication.
commit 9b49a480ca9587a0a16ebe941662849f38289644
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Jun 6 08:25:38 2016 -0400
Patch from boaz
commit c2bc36524fda119fd0514415127e8901d94409c8
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 14:46:27 2016 -0400
Fix docs
After updating to master we are actually testing them.
commit 03975ac056e44954eb0a371149d410dcf303e212
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 14:20:11 2016 -0400
Cleanup after merge from master
commit 9c9a1deb002c5bebb2a997c89fa12b3d7978e02e
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 14:09:14 2016 -0400
Breaking changes notes
commit 1c3e64ae06c07a85f7af80534fab88279adb30b4
Merge: 9e63ad6 f67e580
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 14:00:05 2016 -0400
Merge branch 'master' into block_until_refresh2
commit 9e63ad6de52d0b28f0b6d7203721baf1ebf6f56b
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 13:21:27 2016 -0400
Test for TransportWriteAction
commit 522ecb59d39b3c9e8df0d3b8df34b9e7aeaf0ce9
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 10:30:18 2016 -0400
Document deprecation
commit 0cd67b947f58867e704a1f0e66928a6fb5a11f11
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 10:26:23 2016 -0400
Deprecate setRefresh(boolean)
Users should use `setRefresh(RefreshPolicy)` instead.
commit aeb1be3f2c501990b33fb1f8230d496035f498ef
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 10:12:27 2016 -0400
Remove checkstyle suppression
It is fixed
commit 00d09a9caa638b6f90f4896b5502dd98d8fad56e
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 10:08:28 2016 -0400
Improve comment
commit 788164b898a6ee2878a273961230122b7386c3c9
Author: Nik Everett <nik9000@gmail.com>
Date: Thu Jun 2 10:01:01 2016 -0400
S/ReplicatedWriteResponse/WriteResponse/
Now it lines up with WriteRequest.
commit b74cf3fe778352b140355afcaa08d3d4412d749d
Author: Nik Everett <nik9000@gmail.com>
Date: Wed Jun 1 18:27:52 2016 -0400
Preserve `?refresh` behavior
`?refresh` means the same things as `?refresh=true`.
commit 30f972bdaeaaa0de6fe67746cdb8628aa86f5a8c
Author: Nik Everett <nik9000@gmail.com>
Date: Wed Jun 1 17:39:05 2016 -0400
Handle hanging documents
If a document is added to the index during a refresh we weren't properly
firing its refresh listener. This happened because the way we detect
whether a refresh makes something visible or not is imperfect. It is
ok because it always errs on the side of thinking that something isn't
yet visible.
So when a document arrives during a refresh the refresh listeners
won't think it made it into a refresh when, often, it does. The way
we work around this is by telling Elasticsearch that it ought to
trigger a refresh if there are any pending refresh listeners even
if there aren't pending documents to update. Lucene short circuits
the refresh so it doesn't take that much effort, but the refresh
listeners still get the signal that a refresh has come in and they
still pick up the change and notify the listener.
This means that the time that a listener can wait is actually slightly
longer than the refresh interval.
commit d523b5702b60c7ba309fb0dcf3cd3a4798f11960
Author: Nik Everett <nik9000@gmail.com>
Date: Wed Jun 1 14:34:01 2016 -0400
Explain Integer.MAX_VALUE
commit 4ffb7c0e954343cc1c04b3d7be2ebad66d3a016b
Author: Nik Everett <nik9000@gmail.com>
Date: Wed Jun 1 14:27:39 2016 -0400
Fire all refresh listeners in a single thread
Rather than queueing a runnable each.
commit 19606ec3bbe612095df45eba734c5b7eb2709c01
Author: Nik Everett <nik9000@gmail.com>
Date: Wed Jun 1 14:09:52 2016 -0400
Assert translog ordering
commit 6bb4e5c75e850f4a42518f06fbc955f7ec76d245
Author: Nik Everett <nik9000@gmail.com>
Date: Wed Jun 1 13:17:44 2016 -0400
Support null RefreshListeners in InternalEngine
Just skip using it.
commit 74be1480d6e44af2b354ff9ea47c234d4870b6c2
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 18:02:03 2016 -0400
Move funny ShardInfo hack for bulk into bulk
This should make it easier to understand because it is closer to where it
matters....
commit 2b771f8dabd488e056cfdc9989608d18264ddfb0
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 17:39:46 2016 -0400
Pull listener out into an inner class with javadoc and stuff
commit 058481ad72019c0492b03a7a4ac32a48673697d3
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 17:33:42 2016 -0400
Fix javadoc links
commit d2123b1cabf29bce8ff561d4a4c1c1d5b42bccad
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 17:28:09 2016 -0400
Make more stuff final
commit 8453fc4f7850f6a02fb5971c17a942a3e3fd9f7b
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 17:26:48 2016 -0400
Javadoc
commit fb16d2fc7016c1e8e1621d481e8781c7ef43326c
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 16:14:48 2016 -0400
Rewrite refresh docs
commit 5797d1b1c4d233c0db918c0d08c21731ddccd05e
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 15:02:34 2016 -0400
Fix forced_refresh flag
It wasn't being set.
commit 43ce50a1de250a9e073a2ca6cbf55c1b4c74b11b
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 14:02:56 2016 -0400
Delay translog sync and flush until after refresh
The sync might have occurred for us during the refresh so we
have less work to do. Maybe.
commit bb2739202e084703baf02cfa58f09517598cf14e
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 13:08:08 2016 -0400
Remove duplication in WritePrimaryResult and WriteReplicaResult
commit 2f579f89b4867a880396f2e7fcffc508449ff2de
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 12:19:05 2016 -0400
Clean up registration of RefreshListeners
commit 87ab6e60ca5ba945bf0fba84784b2bbe53506abf
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 31 11:28:30 2016 -0400
Shorten lock time in RefreshListeners
Also use null to represent no listeners rather than an empty list.
This saves allocating a new ArrayList every refresh cycle on every
index.
commit 0d49d9c5720dadfb67da3fa760397bf6d874601c
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 10:46:18 2016 -0400
Flip relationship between RefreshListeners and Engine
Now RefreshListeners comes to Engine from EngineConfig.
commit b2704b8a39382953f8f91a9743e894ee289f7514
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 09:37:58 2016 -0400
Remove unused imports
Maybe I added them?
commit 04343a22647f19304d9dc716b3fac9b183227f63
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 09:37:52 2016 -0400
Javadoc
commit da1e765678890a02d61d8a29aa433274beb5e00c
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 09:26:35 2016 -0400
Reply with non-null
Also move the fsync and flush to before the refresh listener stuff.
commit 5d8eecd0d904b497844b4c81c46477bd6178ed3a
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 08:58:47 2016 -0400
Remove funky synchronization in AsyncReplicaAction
commit 1ec71eea0f4e1228ae1497d982307be818ef4b65
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 08:01:14 2016 -0400
s/LinkedTransferQueue/ArrayList/
commit 7da36a4ceed2ccf7955138c3b005237fa41efcb4
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 07:46:38 2016 -0400
More cleanup for RefreshListeners
commit 957e9b77007c32ee75dde152c6622bab065d5993
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 24 07:34:13 2016 -0400
/Consumer<Runnable>/Executor/
commit 4d8bf5d4a70dcc56150c8d8d14165cd23d308b3c
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 23 22:20:42 2016 -0400
explain
commit 15d948a348089bb2937eec5ac4e96f3ec67dbe32
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 23 22:17:59 2016 -0400
Better....
commit dc28951d02973fc03b4d51913b5f96de14b75607
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 23 21:09:20 2016 -0400
Javadocs and compromises
commit 8eebaa89c0a1ee74982fbe0d56d1485ca2ae09db
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 23 20:52:49 2016 -0400
Take boaz's changes to their logic conclusion and unbreak important stuff like bulk
commit 7056b96ea412f275005b93e3570bcff895859ed5
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 23 15:49:32 2016 -0400
Patch from boaz
commit 87be7eaed09a274cc6a99d1a3da81d2d7bf9dd64
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 23 15:49:13 2016 -0400
Revert "Move async parts of replica operation outside of the lock"
This reverts commit 13807ad10b6f5ecd39f98c9f20874f9f352c5bc2.
commit 13807ad10b6f5ecd39f98c9f20874f9f352c5bc2
Author: Nik Everett <nik9000@gmail.com>
Date: Fri May 20 22:53:15 2016 -0400
Move async parts of replica operation outside of the lock
commit b8cadcef565908b276484f7f5f988fd58b38d8b6
Author: Nik Everett <nik9000@gmail.com>
Date: Fri May 20 16:17:20 2016 -0400
Docs
commit 91149e0580233bf79c2273b419fe9374ca746648
Author: Nik Everett <nik9000@gmail.com>
Date: Fri May 20 15:17:40 2016 -0400
Finally!
commit 1ff50c2faf56665d221f00a18d9ac88745904bf5
Author: Nik Everett <nik9000@gmail.com>
Date: Fri May 20 15:01:53 2016 -0400
Remove Translog#lastWriteLocation
I wasn't being careful enough with locks so it wasn't right anyway.
Instead this builds a synthetic Tranlog.Location when you call
getWriteLocation with much more relaxed equality guarantees. Rather
than being equal to the last Translog.Location returned it is
simply guaranteed to be greater than the last translog returned
and less than the next.
commit 55596ea68b5484490c3637fbad0d95564236478b
Author: Nik Everett <nik9000@gmail.com>
Date: Fri May 20 14:40:06 2016 -0400
Remove listener from shardOperationOnPrimary
Create instead asyncShardOperationOnPrimary which is called after
all of the replica operations are started to handle any async
operations.
commit 3322e26211bf681b37132274ee158ae330afc28b
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 17 17:20:02 2016 -0400
Increase default maximum number of listeners to 1000
commit 88171a8322a424e624d48960fb4c98dd43e4d671
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 17 16:40:57 2016 -0400
Rename test
commit 179c27c4f829f2c6ded65967652cf85adaf2ae52
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 17 16:35:27 2016 -0400
Move refresh listeners into their own class
They still live at the IndexShard level but they live on their
own in RefreshListeners which interacts with IndexShard using a
couple of callbacks and a registration method. This lets us test
the listeners without standing up an entire IndexShard. We still
test the listeners against an InternalEngine, because the interplay
between InternalEngine, Translog, and RefreshListeners is complex
and important to get right.
commit d8926d5fc1d24b4da8ccff7e0f0907b98c583c41
Author: Nik Everett <nik9000@gmail.com>
Date: Tue May 17 11:02:38 2016 -0400
Move refresh listeners into IndexShard
commit df91cde398eb720143a85a8c6fa19bdc3a74e07d
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 16 16:01:03 2016 -0400
unused import
commit 066da45b08148b266e4173166662fc1b3f66ed53
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 16 15:54:11 2016 -0400
Remove RefreshListener interface
Just pass a Translog.Location and a Consumer<Boolean> when registering.
commit b971d6d3301c7522b2e7eb90d5d8dd96a77fa625
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 16 14:41:06 2016 -0400
Docs for setForcedRefresh
commit 6c43be821eaf61141d3ec520f988aad3a96a3941
Author: Nik Everett <nik9000@gmail.com>
Date: Mon May 16 14:34:39 2016 -0400
Rename refresh setter and getter
commit e61b7391f91263a4c4d6107bfbc2a828bbcc805c
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 22:48:09 2016 -0400
Trigger listeners even when there is no refresh
Each refresh gives us an opportunity to pick up any listeners we may
have left behind.
commit 0c9b0477085c021f503db775640d25668e02f635
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 20:30:06 2016 -0400
REST
commit 8250343240de7e63118c663a230a7a314807a754
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 19:34:22 2016 -0400
Switch to estimated count
We don't need a linear time count of the number of listeners - a volatile
variable is good enough to guess. It probably undercounts more than it
overcounts but it isn't a huge problem.
commit bd531167fe54f1bde6f6d4ddb0a8de5a7bcc18a2
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 18:21:02 2016 -0400
Don't try and set forced refresh on bulk items without a response
NullPointerExceptions are bad. If the entire request fails then the user
has worse problems then "did these force a refresh".
commit bcfded11515af5e0b3c3e36f3c2f73f5cd26512e
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 18:14:20 2016 -0400
Replace LinkedList and synchronized with LinkedTransferQueue
commit 8a80cc70a76375a7593745884cb987535b37ca80
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 17:38:24 2016 -0400
Support for update
commit 1f36966742f851b7328015151ef6fc8f95299af2
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 15:46:06 2016 -0400
Cleanup translog tests
commit 8d121bf35eb265b8a0aee9710afeb1b054a113d4
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 15:40:53 2016 -0400
Cleanup listener implementation
Much more testing too!
commit 2058f4a808762c4588309f21b13b677245832f2c
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 11:45:55 2016 -0400
Pass back information about whether we refreshed
commit e445cb0cb91ebdbcfdbf566696edb2bf1c84a882
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 11:03:31 2016 -0400
Javadoc
commit 611cbeeaeb458f4b428bfc43a1ee6652adf4baff
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 11:01:40 2016 -0400
Move ReplicationResponse
now it is in the same package as its request
commit 9919758b644fd73895fb88cd6a4909a8387eb2e2
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 11:00:14 2016 -0400
Oh boy that wasn't working
commit 247cb483c4459dea8e95e0e3bd2e4bf8d452c598
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 10:29:37 2016 -0400
Basic block_until_refresh exposed to java client
and basic "is it plugged in" style tests.
commit 46c855c9971cb2b748206d2afa6a2d88724be3ba
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 10:11:10 2016 -0400
Move test to own class
commit a5ffd892d0a352ae7e9757f2640fc2a1fa656bf2
Author: Nik Everett <nik9000@gmail.com>
Date: Mon Apr 25 07:44:25 2016 -0400
WIP
commit 213bebb6ece11b85d17e44af9a54fc2e5e332d39
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 21:35:52 2016 -0400
Add refresh listeners
commit a2bc7f30e6d4857a1224ef5a89909b36c8f33731
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 21:11:55 2016 -0400
Return last written location from refresh
commit 85033a87551da89f36a23d4dfd5016db218e08ee
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 20:28:21 2016 -0400
Never reply to replica actions while you have the operation lock
This last thing was causing periodic test failures because we were
replying while we had the operation lock. Now, we probably could get
away with that in most cases but the tests don't like it and it isn't
a good idea to do network io while you have a lock anyway. So this
prevents it.
commit 1f25cf35e796835b3827b8a4110e09e5de61784c
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 19:56:18 2016 -0400
Cleanup
commit 52c5f7c3f04710901f503334239a611c0e21c85a
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 19:33:00 2016 -0400
Add a listener to shard operations
commit 5b142dc331214c8eef90587144f4b3f959f9eced
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 18:03:52 2016 -0400
Cleanup
commit 3d22b2d7ceb473db339259452a7c4f117ce86069
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 17:59:55 2016 -0400
Push the listener into shardOperationOnPrimary
commit 34b378943b8185451acf6350f661c0ad33b5836d
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 17:48:47 2016 -0400
Doc
commit b42b8da968d42cc7414020c7b199606a5dcce50a
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 17:45:40 2016 -0400
Don't finish early if the primary finishes early
We use a "fake" pending shard that we resolve when the replicas have
all started.
commit 0fc045b56e1e02a48c30383ac50a281d5af7e0b6
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 17:30:06 2016 -0400
Make performOnPrimary asyncS
Instead of returning Tuple<Response, ReplicaRequest> it returns
ReplicaRequest and takes a ActionListener<Response> as an argument.
We call the listener immediately to preserve backwards compatibility
for now.
commit 80119b9a26ede96a865af45904c3ac69d5b19b59
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 16:51:53 2016 -0400
Factor out common code in shardOperationOnPrimary
commit 0642083676702618f900fa842c08802a04c1a53e
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 16:32:29 2016 -0400
Factor out common code from shardOperationOnReplica
commit 8bdc415fedaaa9f2d0c555590a13ec4699a7c3f7
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 16:23:28 2016 -0400
Create ReplicatedMutationRequest
Superclass for index, delete, and bulkShard requests.
commit 0f8fa846a2822c4293df32fed18c9b99660b39ff
Author: Nik Everett <nik9000@gmail.com>
Date: Fri Apr 22 16:10:30 2016 -0400
Create TransportReplicatedMutationAction
It is the superclass of replication actions that mutate data: index, delete,
and shardBulk. shardFlush and shardRefresh are replication actions but they
do not extend TransportReplicatedMutationAction because they don't change
the data, only shuffle it around.
Today when attempting to use a closed transport client, an exception
saying that no nodes are available is thrown. This is because when a
transport client is closed, its internal list of nodes is cleared. But
this exception is puzzling and can be made clearer. This commit changes
the behavior so that attempting to execute a request using a closed
transport client throws an illegal state exception.
Relates #18722
* master: (911 commits)
[TEST] wait for yellow after setup doc tests (#18726)
Fix recovery throttling to properly handle relocating non-primary shards (#18701)
Fix merge stats rendering in RestIndicesAction (#18720)
[TEST] mute RandomAllocationDeciderTests.testRandomDecisions
Reworked docs for index-shrink API (#18705)
Improve painless compile-time exceptions
Adds UUIDs to snapshots
Add test rethrottle test case for delete-by-query
Do not start scheduled pings until transport start
Adressing review comments
Only filter intial recovery (post API) when shrinking an index (#18661)
Add tests to check that toQuery() doesn't return null
Removing handling of null lucene query where we catch this at parse time
Handle empty query bodies at parse time and remove EmptyQueryBuilder
Mute failing assertions in IndexWithShadowReplicasIT until fix
Remove allow running as root
Add upgrade-not-supported warning to alpha release notes
remove unrecognized javadoc tag from matrix aggregation module
set ValuesSourceConfig fields as private
Adding MultiValuesSource support classes and documentation to matrix stats agg module
...
A RestClient instance is now created whenever EsIntegTestCase#getRestClient is invoked for the first time. It is then kept until the cluster is cleared (depending on the cluster scope of the test).
Renamed other two restClient methods to createRestClient, as that instance needs to be closed and managed in the tests.
A RestClient instance is now created whenever EsIntegTestCase#getRestClient is invoked for the first time. It is then kept until the cluster is cleared (depending on the cluster scope of the test).
Renamed other two restClient methods to createRestClient, as that instance needs to be closed and managed in the tests.
We still have a wrapper called RestTestClient that is very specific to Rest tests, as well as RestTestResponse etc. but all the low level bits around http connections etc. are now handled by RestClient.
Relocation of non-primary shards is realized by recovering from the primary shard. Recovery throttling wrongly equates non-primary relocation as recovering a shard from the non-primary relocation source, however.
Closes#18640
give the table description:
```
table.addCell("merges.total", "sibling:pri;alias:mt,mergesTotal;default:false;text-align:right;desc:number of completed merge ops");
table.addCell("pri.merges.total", "default:false;text-align:right;desc:number of completed merge ops");
table.addCell("merges.total_docs", "sibling:pri;alias:mtd,mergesTotalDocs;default:false;text-align:right;desc:docs merged");
table.addCell("pri.merges.total_docs", "default:false;text-align:right;desc:docs merged");
table.addCell("merges.total_size", "sibling:pri;alias:mts,mergesTotalSize;default:false;text-align:right;desc:size merged");
table.addCell("pri.merges.total_size", "default:false;text-align:right;desc:size merged");
```
this is how it should be.
This commit adds a UUID for each snapshot, in addition to the already
existing repository and snapshot name. The addition of UUIDs will enable
more robust handling of the deletion of previous snapshots and lingering
files from partially failed delete operations, on top of being able to
uniquely track each snapshot.
Closes#18228
Relates #18156
Today, scheduled pings in NettyTransport can start before the transport
is started. Instead, these pings should not be scheduled until after the
transport is started. This commit modifies NettyTransport so that this
is the case.
Relates #18702
Today we use `index.routing.allocation.include._id` to filter the allocation
for the shrink target index. That has the sideeffect that the user has to
delete that setting / change it once the primary has been recovered (shrink is done)
This PR adds a dedicated filter that can only be set internally that only filters
allocation for unassigned shards.
Currently we support empty query clauses like the filter in
"constant_score" : { "filter" : { } }
How these clauses are handled depends on the surrounding query.
They later are either ignored, converted to match all or no documents or
passed up further in the query hierarchy. During parsing these claues are
currently represented as EmptyQueryBuilders. When not handled anywhere else,
these special cases need to be checked for on the shard when building the
lucene query.
This is trappy, so this PR changes the parsing of compound queries. Instead
of returning QueryBuilder, the core query parsing method
QueryShardContext#parseInnerQueryBuilder() now return an Optional which can
be empty in the case of empty query clauses. This has the advantage of forcing
callers to deal with this sooner or later. When encountering empty Optionals,
compound query builders now have the choice to ignore them, pass them on or
rewrite to a different query, depending on context.
The setting bootstrap.mlockall is useful on both POSIX-like systems
(POSIX mlockall) and Windows (Win32 VirtualLock). But mlockall is really
a POSIX only thing so the name should not be tied POSIX. This commit
renames the setting to "bootstrap.memory_lock".
Relates #18669
Index deletion requests currently use a custom acknowledgement mechanism that wait for the data nodes to actually delete the data before acknowledging the request to the client. This was initially put into place as a new index with same name could only be created if the old index was wiped as we used the index name as data folder on the data nodes. With PR #16442, we now use the index uuid as folder name which avoids collision between indices that are named the same (deleted and recreated). This allows us to get rid of the custom acknowledgment mechanism altogether and rely on the standard cluster state-based acknowledgment instead.
Closes#18558
If this option is enabled on a processor it silently catches any processor related failure and continues executing the rest of the pipeline.
Closes#18493
We do throw ConnectTransportException which is logged in trace level hiding a potentially
important information when an old or wrong node wants to connect. We should throw ISE and
log as warn.
Similar reasoning as #18133 but for the aggs API. One important change is that
I moved the base PipelineAggregatorBuilder class to the o.e.s.aggregations
package instead of o.e.s.aggregations.pipeline so that the create method does
not need to be public.
Share applying template with MetaDataCreateIndexService and MetaDataIndexTemplateService
Add some unit test
Collapse addMappingsToMapperService and move it to MapperService
Extract validateTemplate method
use expectThrows in testcase
Add TODO comment
Closes#2415
This commit clarifies the behavior that must be adhered to by any
implementors of the BlobContainer interface. This is done through
expanded Javadocs.
Closes#18157Closes#15580
The page cache recycler has a dependency on thread pool that was there
for historical reasons but is no longer needed. This commit removes this
now unneeded dependency.
Relates #18664
Contains a number of cleanups related to recent changes in RoutingNodes:
- PR #17821 (Immutable ShardRouting) changed RoutingNode to use a map indexed by ShardId to manage ShardRouting elements. This means that we can directly select the right ShardRouting without iterating over all elements. This lets us get rid of RoutingNodeIterator and all kind of iterations all over the place.
- Second cleanup is an extension of #18390 (Expose cluster state before reroute in RoutingAllocation instead of RoutingNodes). We should not reexpose RoutingTable in RoutingNodes and only use it in the constructor. This makes it clear that the RoutingTable is only used to construct the RoutingNodes and can diverge from it afterwards (only RoutingNodes is mutable).
- Remove AllocationService.applyNewNodes() (that is already done as part of construction of RoutingNodes)
When we shrink an index we can estimate the shards size for the primary
from the source index. This is important for allocation decisions since we
should try out best to ensure we have enough space on the node we shrink the
index.
Currently we return `null` when the query in a common terms query has
zero tokens after analysis. It would be better if query builders
`toQuery()` would never return null and return a meaningful lucene
query instead. Since an ExtendedCommonTermsQuery with no terms gets
rewritten to a MatchNoDocsQuery later, it is enough to leave out the
check for zero tokens.
The fact that ip fields used a different doc values representation in 2.x causes
issues when querying 2.x and 5.0 indices in the same request. This changes 2.x
doc values on ip fields/2.x to be hidden behind binary doc values that use the
same encoding as 5.0. This way the coordinating node will be able to merge shard
responses that have different major versions.
One known issue is that this makes sorting/aggregating slower on ip fields for
indices that have been generated with elasticsearch 2.x.
This adds a low level primitive operations to shrink an existing
index into a new index with a single shard. This primitive expects
all shards of the source index to allocated on a single node. Once the target index is initializing on the shrink node it takes a snapshot of the source index shards and copies all files into the target indices data folder. An [optimization](https://issues.apache.org/jira/browse/LUCENE-7300) coming in Lucene 6.1 will also allow for optional constant time copy if hard-links are supported by the filesystem. All mappings are merged into the new indexes metadata once the snapshots have been taken on the merge node.
To shrink an existing index all shards must be moved to a single node (one instance of each shard) and the index must be read-only:
```BASH
$ curl -XPUT 'http://localhost:9200/logs/_settings' -d '{
"settings" : {
"index.routing.allocation.require._name" : "shrink_node_name",
"index.blocks.write" : true
}
}
```
once all shards are started on the shrink node. the new index can be created via:
```BASH
$ curl -XPUT 'http://localhost:9200/logs/_shrink/logs_single_shard' -d '{
"settings" : {
"index.codec" : "best_compression",
"index.number_of_replicas" : 1
}
}'
```
This API will perform all needed check before the new index is created and selects the shrink node based on the allocation of the source index. This call returns immediately, to monitor shrink progress the recovery API should be used since all copy operations are reflected in the recovery API with byte copy progress etc.
The shrink operation does not modify the source index, if a shrink operation should
be canceled or if the shrink failed, the target index can simply be deleted and
all resources are released.
When calling `findTemplateBuilder(context, currentFieldName, "text", null)`,
elasticsearch ignores all templates that have a `match_mapping_type` set since
no dynamic type is provided (the last parameter, which is null in that case).
So this should only be called _last_. Otherwise, if a path-based template
matches, it will have precedence over all type-based templates.
Closes#18625
We have 3 evil tests for jarhell. They have been failing in java 9
because of how evil they are. The first checks the leniency we add for
jarhell in the jdk itself. This is unecessary, since if the leniency
wasn't there, we would already be failing all jarhell checks. The second
is checking the compile version is compatible with the jdk. This is
simpler since we don't need to fake the java version: we know 1.7 should
be compatibile with both java 8 and 9, so we can use that as a constant.
Finally the last test checks if the java version system property is
broken. This is simply something we should not check, we have to trust
that java specifies it correctly, and again, if it was broken, all
jarhell checks would be broken.
There is no reason to read the entire marvel hero file to test the features,
it might take several seconds to do so which is unnecessary.
This commit also splits SearchSuggestTests into core and modules/mustache
also add @Nighlty to forbidden API to make sure we don't use it since they won't run in CI these days.
Lucene SuppressForbidden is marked lucene.internal and should not be
used outside of Lucene. This commit removes the uses of this class
within Elasticsearch. Instead,
org.elasticsearch.common.SuppressForbidden should be used, which was
already the case in most places.
Modifying the translog replay to not replay again into the translog
introduced a bug for the case of multiple operations for the same
doc. Namely, since we were no longer updating the version map for each
operation, the second operation for a doc would be treated as a creation
instead of as an update. This commit fixes this bug by placing these
operations into version map. This commit includes a failing test case.
Relates #18611
Today we pull doc stats from an index reader which might not reflect reality.
IndexWriter might have merged all deletes away but due to a missing refresh
the stats are completely off. This change pulls doc stats from the IndexWriter
directly instead of relying on refreshes to run regularly. Note: Buffered deletes
are still not visible until the segments are flushed to disk.
If the relocation source fails during the relocation of a shard from one node to another, the
relocation target is currently failed as well. For replica shards this is not necessary,
however, as the actual shard recovery of the relocation target is done via the primary shard.
Our current testing for TimeUnitRoundings rounding() and nextRoundingValue()
methods that are used especially for date histograms lacked proper randomization
for time zones. We only did randomized tests for fixed offset time zones
(e.g. +01:00, -05:00) but didn't account for real world time zones with
DST transitions.
Adding those tests revealed a couple of problems with our current rounding logic.
In some cases, usually happening around those transitions, rounding a value down
could land on a value that itself is not a proper rounded value. Also sometimes
the nextRoundingValue would not line up properly with the rounded value of all
dates in the next unit interval.
This change improves the current rounding logic in TimeUnitRounding in two ways:
it makes sure that calling round(date) always returns a date that when rounded
again won't change (making round() idempotent) by handling special cases happening
during dst transitions by performing a second rounding. It also changes the
nextRoundingValue() method to itself rely on the round method to make sure we
always return rounded values for the unit interval boundaries.
Also adding tests for randomized TimeUnitRounding that assert important basic
properties the rounding values should have. For better understanding and readability
a few of the pathological edge cases are also added as a special test case.
Like on other places in the query dsl the full field name should be used.
Before this change this wasn't the case for nested inner hits when source filtering was used.
Highlighting has a workaround, which is now removed as the source of nested inner hits can only be refered by the full name.
Closes#16653
When performing a local recovery, the engine replays operations
recovered from the translog into the translog again. These duplicated
operations are eventually cleared after successful recovery on flush,
but there is no need to play these operations into the translog at
all. This commit modifies the local recovery process so as to not replay
these operations into the translog.
Relates #18547
This PR changes the InternalTestCluster to support dedicated master nodes. The creation of dedicated master nodes can be controlled using a new `supportsMasterNodes` parameter to the ClusterScope annotation. If set to true (the default), dedicated master nodes will randomly be used. If set to false, no master nodes will be created and data nodes will also be allowed to become masters. If active, test runs will either have 1 or 3 masternodes
This commit fixes an issue with the plugins directory being a symbolic
link. Namely, the install plugins command attempts to always create the
plugins directory just in case it does not exist. The JDK method used
here guarantees that the directory is created, and an exception is not
thrown if the directory could not be created because it already
exists. The problem is that this JDK method does not respect symlinks so
its internal existence checks fails, it proceeds to attempt to create
the directory, but the directory creation fails because the symlink
exists. This is documented as being not an issue. We work around this by
checking if there is a symlink where we expect the plugins directory to
be, and only attempt to create if not. We add a unit test that plugin
installation to a symlinked plugins directory works as expected.
When mocking unassigned shards which have failed with reason ALLOCATION_FAILED we
have to ensure that the failed allocation counter is strictly positive.
It looks like the readme was duplicated when plugins were merged back
into the repo. We removed all these extra files from the plugins, this
removes the remaining duplicate from core.
closes#18597
This commit removes the ability to specify a custom plugins
path. Instead, the plugins path will always be a subdirectory called
"plugins" off of the home directory.
This commit simplifies the delayed shard allocation implementation by assigning clear responsibilities to the various components that are affected by delayed shard allocation:
- UnassignedInfo gets a boolean flag delayed which determines whether assignment of the shard should be delayed. The flag gets persisted in the cluster state and is thus available across nodes, i.e. each node knows whether a shard was delayed-unassigned in a specific cluster state. Before, nodes other than the current master were unaware of that information.
- This flag is initially set as true if the shard becomes unassigned due to a node leaving and the index setting index.unassigned.node_left.delayed_timeout being strictly positive. From then on, unassigned shards can only transition from delayed to non-delayed, never in the other direction.
- The reroute step is in charge of removing the delay marker (comparing timestamp when node left to current timestamp).
- A dedicated service DelayedAllocationService, reacting to cluster change events, has the responsibility to schedule reroutes to remove the delay marker.
Closes#18293
Failing the build on deprecation warnings was removed in
19b3ec88af. This commit removes the
suppressed deprecation warnings so that their use is surfaced in the
build now.
Relates #18582
This adds modules.txt and plugins.txt to the core jar resource files,
which the install plugin command statically loads, in place of the
previously hardcoded lists (which have often gone out of date).
With the unified release, we will have staged releases based on a
unified hash (hash of all the hashes), so using the elasticsearch hash
for plugins staging will no longer work. This change makes the
`es.plugins.staging` property take the staging hash it should use.
`doc_values` for _type field are created but any attempt to load them throws an IAE.
This PR re-enables `doc_values` loading for _type, it also enables `fielddata` loading for indices created between 2.0 and 2.1 since doc_values were disabled during that period.
It also restores the old docs that gives example on how to sort or aggregate on _type field.
The setting minimum_master_nodes is crucial to avoid split brains in a cluster. In order to avoid data loss, it should always be configured to at least a quorum (majority) of master-eligible nodes.
This commit adds a warning to the logs on the master node if the value is set to less than quorum of master-eligible nodes.
The 'Setting' constructor has some outdated Javadoc that suggested that it would automatically apply 'Property.NodeScope' if no scope is supplied, but no scope is added in that case.
We still maintain BWC for the translog operations back to 1.1 which is not
supported in the current version anyway. This commit drops the bwc and moves
the operations to the Writeable interface enforcing immutability.
Closed indices are already displayed when no indices are explicitly selected. This commit ensures that closed indices are also shown when wildcard filtering is used. It also addresses another issue that is caused by the fact that the cat action is based internally on 3 different cluster states (one when we query the cluster state to get all indices, one when we query cluster health, and one when we query indices stats). We currently fail the cat request when the user specifies a concrete index as parameter that does not exist. The implementation works as intended in that regard. It checks this not only for the first cluster state request, but also the subsequent indices stats one. This means that if the index is deleted before the cat action has queried the indices stats, it rightfully fails. In case the user provides wildcards (or no parameter at all), however, we fail the indices stats as we pass the resolved concrete indices to the indices stats request and fail to distinguish whether these indices have been resolved by wildcards or explicitly requested by the user. This means that if an index has been deleted before the indices stats request gets to execute, we fail the overall cat request. The fix is to let the indices stats request do the resolving again and not pass the concrete indices.
Closes#16419Closes#17395
SnapshotInfo had a toXContent and an externalToXContent, the former for
writing snapshot info to the snapshot blob and the latter for writing the
snapshot info to the APIs. This commit unifies writing x-content to one
method, toXContent, which distinguishes which format to write the
snapshot info in based on the Params parameter. In addition, it makes
use of the already existing snapshot specific params found in the
BlobStoreFormat.
Closes#18494
Significant changes:
* AbstractQueryTestCase has moved to the test framework module, in order for query builder tests in modules and plugins
* Added support to AbstractQueryTestCase to register plugins
* Lift the restriction that only one percolator could be added per index. This validation existed in MapperService, but because the percolator moved to a module it could no longer exist there. Instead of bringing it back it was removed. This validation existed since the percolator cache only supported one percolator query per document, since the percolator cache has been removed this restriction could removed as well.
* While moving percolator tests to the new module, also removed a couple of tests for the deprecated percolate and mpercolate api. These APIs are now sugar APIs for bwc and rediect to the searvh and msearvh APIs. Some tests were still testing as if percolate and mpercolate API did the percolation, but this no longer the case and these tests could be removed.
Named queries have a performance bug when they are used with expensive queries
that need to perform a lot of work up-front like fuzzy or range queries
(including with points). The reason is that they currently re-create the weight
and scorer for every hit. Instead we should create weights exactly once and
use a single Scorer for all documents that are on the same segment.
Before the query extraction would have been aborted and the percolator query would be marked as unknown.
This resulted in a situation that these queries always need to be evaluated by the memory index at search time.
By adding support for this query many more percolator query candidate hits can skip the expensive memory index verification step. For example the `match` query parser returns a MatchNoDocsQuery if the query terms are removed by text analysis (lets query text only contained stop words).
Remove the arbitrary limit on epoch_millis and epoch_seconds of 13 and 10
characters, respectively. Instead allow any character combination that can
be converted to a Java Long.
Update the docs to reflect this change.
This commit is a slight refactoring of the use of environment variables
in replacing property placeholders. In commit
115f983827 the constructor for
Settings.Builder was made package visible to provide a hook for tests to
mock obtaining environment variables. But we do not need to go that far
and can instead provide a small hook for this for tests without opening
up the constructor. Thus, in this commit we refactor
Settings.Builder#replacePropertyPlaceholders to a package-visible method
that accepts a function providing environment variables by names. The
public-visible method just delegates to this method passing in
System::getenv and tests can use the package-visible method to mock the
behavior they need without relying on external environment variables.
This change makes ES compile with java9 again, build 118.
* There are a handful of changes due to failure to determine types during compile.
* The attachment plugins which use tika needed to have tika upgraded in order to pickup fixes there for java 9.
* azure discovery and s3 repository indirectly depend on jaxb, which is no longer in the default modules. They now add a jaxb dependency externally, and make JarHell allow for this package.
This commit modifies the settings test for environment variables
placeholders so that it is reproducible. The underlying issue is that
the set of environment variables from system to system can vary, and
this means that's we can never be sure that a failing test will be
reproducible. This commit simplifies this test to not rely on external
forces that could influence reproducibility.
Relates #18501
This removes the ScriptMode class entirely, which was an enum with two
options (ON and OFF) which essentially boiled down to true and false.
Now the boolean values are used instead.
We write to Netty channels in an async fashion, but notify listeners via
a transport service adapter before we are certain that the channel write
succeeded. In particular, the tracer logs are implemented via a
transport service adapter and this means that we can write tracer logs
before a write was successful and in some cases the write might fail
leading to misleading logs. This commit attaches the transport service
adapters to channel writes as a listener so that the notification occurs
only after a successful write.
Relates #18500
Today if a shard fails during initialization phase due to misconfiguration, broken disks,
missing analyzers, not installed plugins etc. elasticsaerch keeps on trying to initialize
or rather allocate that shard. Yet, in the worst case scenario this ends in an endless
allocation loop. To prevent this loop and all it's sideeffects like spamming log files over
and over again this commit adds an allocation decider that stops allocating a shard that
failed more than N times in a row to allocate. The number or retries can be configured via
`index.allocation.max_retry` and it's default is set to `5`. Once the setting is updated
shards with less failures than the number set per index will be allowed to allocate again.
Internally we maintain a counter on the UnassignedInfo that is reset to `0` once the shards
has been started.
Relates to #18417
Today when sending a REST error to a client, we send the decoded
path. But decoding that path can already be the cause of the error in
which case decoding it again will just throw an exception leading to us
never sending an error back to the client. It would be better to send
the entire raw path to the client and that is what we do in this commit.
Relates #18477
When a snapshot initialization fails, the create snapshot method may return before the snapshot metadata in the cluster state is removed. This can cause follow up snapshot-API related calls to fail due to a snapshot still running. This is causing CI failures when we try to delete indices that were participating in failed snapshot to a read-only repository.
Closes#18121
This test fails spuriosly in CI and is not reproducible locally.
With this commit we temporarily increase the log level in a few
packages that are suspected to reveal the cause.
This commit fixes a test bug in the scaling thread pool configuration
test. In particular, the test randomization could select min and max for
a thread pool configuration where both are equal to zero. This is a
violation of the requirements of the ThreadPoolExecutor. With this
commit, we now ensure that the max is bounded below by one.
Before 5.0 for it was required that the percolator queries were cached in jvm heap as Lucene queries for two reasons:
1) Performance. The percolator evaluated all percolator queries all the time. There was no pre-selecting queries that are likely to match like we have today.
2) Updates made to percolator queries were visible in realtime, Today these changes are visible in near realtime. So updating no longer requires the percolator to have the queries in jvm heap.
So having the percolator queries in jvm heap via the percolator cache is now less attractive. Especially when there are many percolator queries then these queries can consume many GBs of jvm heap.
Removing the percolator cache does make the percolate query slower compared to how the execution time in 5.0.0-alpha1 and alpha2, but it is still faster compared to 2.x and before.
Currently the query builders expose the clauses of the span
query as a modifiable list. Instead we should make the that
getter return an unmodifiable list. Also renaming the method
used to add a clause from `clause(spanQuery)` to
`addClause(spanQuery)`.
#18360 introduced an extra lock in order to allow writes while syncing the translog. This caused a potential deadlock with snapshotting code where we first acquire the instance lock, followed by a sync (which acquires the syncLock). However, the sync logic acquires the syncLock first, followed by the instance lock.
I considered solving this by not syncing the translog on snapshot - I think we can get away with just flushing it. That however will create subtleties around snapshoting and whether operations in them are persisted. I opted instead to have slightly uglier code with nest synchronized, where the scope of the change is contained to the TranslogWriter class alone.
Today when parsing settings during bootstrap, we add a system property
for every Elasticsearch setting. Additionally, settings can be set via
system properties. This commit simplifies this situation.
- settings are no longer propogated to system properties
- system properties can not be used to set settings
- the "es." prefix on settings is no longer required (nor permitted)
- test logging has a dedicated system property (tests.logger.level)
Relates #18198
The preserve_original option to the ASCIIFoldingFilter doesn't
play well with the FingerprintFilter, as it ends up producing
fingerprints like:
"and consistent godel gödel is said sentence this yes"
The goal of the OpenRefine algorithm is to product a small normalized
ASCII fingerprint. There's no need to expose preserve_original.
We often require a random joda DateTimeZone in our tests. Currently
there are a few options for generating such a random DateTimeZone
from the set of available ids. Currently most random picks are not
really reproducable across different jvms because they rely on order
in the ids set implementation. The helper in DateProcessorFactoryTests
thus performs a sort on the set of ids before random picking from
the result, so I moved this to ESTestCase to make it publicly
available and changed all other tests to use that method.
From 2.0 adding child types to existing types was forbidden because the`_parent` field stores the join between parent and child at index time.
This is to protect from the fact that types that weren't a parent before become a parent while previously indexed documents would not have a join field.
This would break the parent/child queries.
The restriction was a bit too strict in the sense that also if a type was a parent type the restriction would forbid adding child types that point to a parent type (so child points already point to it).
This change make sure that the restriction only applies if that type isn't a parent type already.
Closes#17956
* Register `indices.query.bool.max_clause_count` setting
This commit registers `indices.query.bool.max_clause_count` as a node
level setting and removes support for its synonym setting
`index.query.bool.max_clause_count`.
Closes#18336
FSync translog outside of the writers global lock
Today we aquire a write global lock that blocks all modification to the
translog file while we fsync / checkpoint the file. Yet, we don't necessarily
needt to block concurrent operations here. This can lead to a lot of blocked
threads if the machine has high concurrency (lot os CPUs) but uses slow disks
(spinning disks) which is absolutely unnecessary. We just need to protect from
fsyncing / checkpointing concurrently but we can fill buffers and write to the
underlying file in a concurrent fashion.
This change introduces an additional lock that we hold while fsyncing but moves
the checkpointing code outside of the writers global lock.
Currently rounding intervals obtained by nextRoundingValue() for hour, minute and
second units can include an extra hour when happening at DST transitions that add
an extra hour (eg CEST -> CET). This changes the rounding logic for time units
smaller or equal to an hour to fix this.
Closes#18326
This commit adds simple GC overhead logging. This logging captures
intervals where the JVM is spending a lot of time performing GC but it
is not necessarily the case that each GC is large. For a start, this
logging is simple and does not attempt to incorporate whether or not the
collections were efficient (that is, we are only capturing that a lot of
GC is happening, not that a lot of useless GC is happening).
Relates #18419
We are currently only parsing the array-syntax for the rescore part
in SearchSourceBuilder ("rescore" : [ {...}, {...} ]) . We also need
to support "rescore" : {...}
Closes#18439
- Moves recovery logic into IndexShard
- Simplifies logic to cancel peer recovery of shard where recovery source node changed
- Ensures routing entry is set on initialization of IndexShard
With this commit we clear all caches after testing the parent circuit breaker.
This is necessary as caches hold on to circuit breakers internally. Additionally,
due to usage of CircuitBreaker#addWithoutBreaking() in caches, it's even possible
to go above the limit. As a consequence, all subsequent requests fall victim to
the limit.
Hence, right after the parent circuit breaker tripped, we clear all caches to
reduce these circuit breakers to 0 again. We also exclude the clear caches
transport request from limit check in order to ensure it will succeed. As this is
typically a very small and low-volume request, it is deemed ok to exclude it.
Closes#18325
This commit adds a variety of real disk metrics for the block devices
that back Elasticsearch data paths. A collection of statistics are read
from /proc/diskstats and are used to report the raw metrics for
operations and read/write bytes.
Relates #15915
This commit refactors the JvmGcMonitorService so that it can be
tested. In particular, hooks are added to verify that the
JvmMonitorService correctly observes slow GC events, and that the
JvmGcMonitorService logs the correct messages.
Relates #18378
Instead of re-exposing index metadata and blocks in RoutingNodes (which is part of the cluster state before rerouting), expose it as part of the RoutingAllocation which is known to be only temporarily used during reroute.
Sorts an array of values in ascending or descending order. If all elements are numerics, they will be sorted numerically. If values are strings, or mixtures of strings/numbers, the elements will be sorted lexicographically.
The change also renames fields and methods in the Profilers class.
Note that I had to make ProfileResult a public class (it was package private before) because now classes that call it are in a different package.
This change does the following:
- Queries that are currently unsupported such as prefix queries on numeric
fields or term queries on geo fields now throw an error rather than returning
a query that does not match anything.
- Fuzzy queries on numeric, date and ip fields are now unsupported: they used
to create range queries, we now expect users to use range queries directly.
Fuzzy, regexp and prefix queries are now only supported on text/keyword
fields (including `_all`).
- The `_uid` and `_id` fields do not support prefix or range queries anymore as
it would prevent us to store them more efficiently in the future, eg. by
using a binary encoding.
Note that it is still possible to ignore these errors by using the `lenient`
option of the `match` or `query_string` queries.
With this commit we add a precondition check to BulkRequest so
we fail early if users pass `null` for the request object.
For a more detailed discussion, see #12038.
This supersedes #12038.
Relates #12038.
Today, a race condition exists when retiring executors. Namely, if an
executor is retired and then the thread pool is terminated, the retiring
of the executor and the termination of the thread pool can race to
remove the retired executor from the queue of retired executors. More
precisely, when the executor is initially retired, it is placed on a
queue of retired executors, and then removed when it is successfully
shutdown. When the pool is terminated, it will also drain the queue of
retired executors. This leads to a time-of-check-time-of-use race where
the draining can see a retired executor on the queue but that retired
executor can be removed upon successful shutdown of that executor. This
leads to the draining attempting to remove an element from the queue
when there is none. This commit addresses this race condition by instead
safely polling the queue.
Relates #18333
Previously multiple extensions could be provided, however, this can lead
to confusion with on-disk scripts (ie, "foo.js" and "foo.javascript")
having different content. Only a single extension is now supported.
The only language currently supporting multiple extensions was the
Javascript engine ("js" and "javascript"). It now only supports the
`.js` extension.
Relates to #10598
Currently `fuzziness` is not supported for the `cross_fields` type
of the `multi_match` query since it complicates the logic that
blends the term queries that cross_fields uses internally. At the
moment using this combination is silently ignored, which can lead to
confusions. Instead we should throw an exception in this case.
The same is true for phrase and phrase_prefix type.
Closes#7764
This commit adds a test that a fixed executors rejected count behaves as
expected. In particular, we test that if we consume the executor, then
stuff the executor queue, further tasks will be rejected and the
rejected stats are updated appropriately. This test also asserts that if
we resize the queue the rejected count is reset to zero.
Relates #18301
This removes all the mentions of the sandbox from the script engine
services and permissions model. This means that the following settings
are no longer supported:
```yaml
script.inline: sandbox
script.stored: sandbox
```
Instead, only a `true` or `false` value can be specified.
Since this would otherwise break the default-allow parameter for
languages like expressions, painless, and mustache, all script engines
have been updated to have individual settings, for instance:
```yaml
script.engine.groovy.inline: true
```
Would enable all inline scripts for groovy. (they can still be
overridden on a per-operation basis).
Expressions, Painless, and Mustache all default to `true` for inline,
file, and stored scripts to preserve the old scripting behavior.
Resolves#17114
Currently terms on an ip address try to put their binary representation in the
json response. With this commit, they would return a formatted ip address:
```
"buckets": [
{
"key": "192.168.1.7",
"doc_count": 1
}
]
```
We add support to explicitly exclude specific transport actions
from the request size limit check.
We also exclude the following request types currently:
*MasterPingRequest
* PingRequest
As most of our log messages are not sentences and do not end with
periods, this commit removes a period from the end of the min master
node bootstrap check log message.
Rearranges the FingerprintAnalyzer so that AsciiFolding comes earlier in the chain (after lowercasing, before stop removal, for maximum deduping power)
Closes#18266
This commit ensures that if CORS is enabled, then Origin headers are
checked regardless of whether the request came from a browser or not.
In the past, we only proceeded with CORS checks if the User-Agent was a
browser.
(same name and UUID) exists in the cluster state. This resolves a
situation where if an index data folder was copied into a node's data
directory while the node is running and that index had a tombstone in
the cluster state, the index would still get imported.
Closes#18250Closes#18249
It will keep using the caching terms enum for keyword/text fields and falls back
to IndexSearcher.count for fields that do not use the inverted index for
searching (such as numbers and ip addresses). Note that this probably means that
significant terms aggregations on these fields will be less efficient than they
used to be. It should be ok under a sampler aggregation though.
This moves tests back to the state they were in before numbers started using
points, and also adds a new test that significant terms aggs fail if a field is
not indexed.
In the long term, we might want to follow the approach that Robert initially
proposed that consists in collecting all documents from the background filter in
order to compute frequencies using doc values. This would also mean that
significant terms aggregations do not require fields to be indexed anymore.
This commit modifies two logging statements in the
IndexingMemoryController to log the key for the setting
indices.memory.index_buffer_size instead of the object.
Relates #18191
An additional sanity check introduced by #17821 makes some tests fail. This check verifies that
only one shard with same shard id is allocated to a node. This commit fixes a bug in
ClusterStateCreationUtils which would construct a cluster state that allocated two shards with same
id to the same node.
Today when join validation fails, we log a warning but do not log the
exception that led to the join validation failing. This commit modifies
this so that we do log this exception.
All implementations of SearchParseElement have been removed since they are no longer used now that parsing is done on the coordinating node. The SearchParseElement and FetchSubPhaseParseElement classes are not removed as currently they are needed for plugins that add a custom fetch sub phase. These will be removed in a follow up PR that will allow fetch sub phase plugins to register a parser in a different way.
The current code tries to handle the case that document versions are either
missing or stored in payloads rather than doc values. Since none of the 2.x
releases allowed this, we can remove this logic.
This removes dead/duplicate code and makes the `_index` field not configurable.
(Configuration used to jus be ignored, now we would throw an exception if any
is provided.)
With this commit we eagerly evaluate content length in HttpServer
and also pass the same value to ResourceHandlingHttpChannel. With
this change it easier to reason about the content length that is
freed leaving no doubt that it must be identical to the reserved
amount.
Most of the current implementations of BaseNodesResponse (plural Nodes) ignore FailedNodeExceptions.
- This adds a helper function to do the grouping to TransportNodesAction
- Requires a non-null array of FailedNodeExceptions within the BaseNodesResponse constructor
- Reads/writes the array to output
- Also adds StreamInput and StreamOutput methods for generically reading and writing arrays
This commit removes handshaking from the transport client. This
handshaking is not needed because of the existence of the liveness
check.
Relates #18174
Due to trying to modify a map while iterating it, a concurrent modification
in the pipeline stats could be thrown. This uses an iterator to prevent this.
Closes#18126
We should prevent highlighting if a field is anything but a text or keyword field.
However, someone might implement a custom field type that has text and still want to
highlight on that. We cannot know in advance if the highlighter will be able to
highlight such a field and so we do the following:
If the field is only highlighted because the field matches a wildcard we assume
it was a mistake and do not process it.
If the field was explicitly given we assume that whoever issued the query knew
what they were doing and try to highlight anyway.
closes#17537
The `ip` field uses a binary representation internally. This breaks when
rendering sort values in search responses since elasticsearch tries to write a
binary byte[] as an utf8 json string. This commit extends the `DocValueFormat`
API in order to give fields a chance to choose how to render values.
Closes#6077
QueryBuilder has generics, but those are never used: all call sites use
`QueryBuilder<?>`. Only `AbstractQueryBuilder` needs generics so that the base
class can contain a default implementation for setters that returns `this`.
In preparation for a unified release process, we need to be able to
generate the pom files independently of trying to actually publish. This
change adds back the maven-publish plugin just for that purpose. The
nexus plugin still exists for now, so that we do not break snapshots,
but that can be removed at a later time once snapshots are happenign
through the unified tools. Note I also changed the dir jars are written
into so that all our artifacts are under build/distributions.
This gives better coverage and consistency with the scripting APIs, by
whitelisting the primary search scripting API classes and using them instead
of only Map and List methods.
For example, accessing fields can now be done with `.value` instead of `.0`
because `getValue()` is whitelisted. For now, access to a document's fields in
this way (loads) are fast-pathed in the code, to avoid dynamic overhead.
Access to geo fields and geo distance functions is now supported.
TODO: date support (e.g. whitelist ReadableDateTime methods as a start)
TODO: improve docs (like expressions and groovy have for document's fields)
TODO: remove fast-path hack
Closes#18169
Squashed commit of the following:
commit ec9f24b2424891a7429bb4c0a03f9868cba0a213
Author: Robert Muir <rmuir@apache.org>
Date: Thu May 5 17:59:37 2016 -0400
cutover to <Def> instead of <Object> here
commit 9edb1550438acd209733bc36f0d2e0aecf190ecb
Author: Robert Muir <rmuir@apache.org>
Date: Thu May 5 17:03:02 2016 -0400
add fast-path for docvalues field loads
commit f8e38c0932fccc0cfa217516130ad61522e59fe5
Author: Robert Muir <rmuir@apache.org>
Date: Thu May 5 16:47:31 2016 -0400
Painless: add fielddata accessors (.value/.values/.distance()/etc)
o/e/snapshots/Snapshot and o/e/snapshots/SnapshotInfo contain the same
fields and represent the same information. Snapshot was used to
maintain snapshot information to the snapshot repository, while
SnapshotInfo was used to represent the snapshot information as presented
through the REST layer. This removes the Snapshot class and combines
all uses into the SnapshotInfo class.
Closes#18167
Adds infrastructure so `gradle :docs:check` will extract tests from
snippets in the documentation and execute the tests. This is included
in `gradle check` so it should happen on CI and during a normal build.
By default each `// AUTOSENSE` snippet creates a unique REST test. These
tests are executed in a random order and the cluster is wiped between
each one. If multiple snippets chain together into a test you can annotate
all snippets after the first with `// TEST[continued]` to have the
generated tests for both snippets joined.
Snippets marked as `// TESTRESPONSE` are checked against the response
of the last action.
See docs/README.asciidoc for lots more.
Closes#12583. That issue is about catching bugs in the docs during build.
This catches *some* bugs in the docs during build which is a good start.
Today we softly warn about running with the client VM. However, we
should really refuse to start in production mode if running with the
client VM as the performance of the client VM is too devastating for a
server application. This commit adds an option to jvm.options to ensure
that we are starting with the server VM (on all 32-bit non-Windows
platforms on server-class machines (2+ CPUs, 2+ GB physical RAM) this is
the default and on all 64-bit platforms this is the only option) and
adds a bootstrap check for the client VM.
Relates #18155
This commit introduces a handshake when initiating a light
connection. During this handshake, node information, cluster name, and
version are received from the target node of the connection. This
information can be used to immediately validate that the target node is
a member of the same cluster, and used to set the version on the
stream. This will allow us to extend APIs that are used during initial
cluster recovery without a major version change.
Relates #15971
Adding random shuffling of xContent to InnterHitBuilderTests shows
that the scriptFields are stored in order as a list internally although
they are an unordered json objects in the query dsl.
This changes the internal representation to a set and updates
serialization accordingly.
Currently we have a lot of methods left in QueryShardContext that
take parsers or BytesReference arguments to do some xContent
parsing on the shard. While this still seems necessary in some cases
(e.g. percolation, phrase suggester), the shard context should only
be concerned with generating lucene queries from QueryBuilders.
This change removes all of the parseX() methods in favour of two
public methods toQuery(QueryBuilder) and toFilter(QueryBuilder) that
either call the query builders toFilter() or toQuery() method and
move all code required for parsing out to the respective callers.
PathTrie has a constructor that allows for an arbitrary separtor and
wildcard, but this constructor is unused and internally we always use
'/' as the separator and '*' as the wildcard. There are no tests for the
case where the separator differs from the default separator and
wildcard. This commit removes this constructor and now all instances of
PathTrie have the default separator and wildcard.
This commit removes the method Strings#splitStringToArray and replaces
the call sites with invocations to String#split. There are only two
explanations for the existence of this method. The first is that
String#split is slightly tricky in that it accepts a regular expression
rather than a character to split on. This means that if s is a string,
s.split(".") does not split on the character '.', but rather splits on
the regular expression '.' which splits on every character (of course,
this is easily fixed by invoking s.split("\\.") instead). The second
possible explanation is that (again) String#split accepts a regular
expression. This means that there could be a performance concern
compared to just splitting on a single character. However, it turns out
that String#split has a fast path for the case of splitting on a single
character and microbenchmarks show that String#split has 1.5x--2x the
throughput of Strings#splitStringToArray. There is a slight behavior
difference between Strings#splitStringToArray and String#split: namely,
the former would return an empty array in cases when the input string
was null or empty but String#split will just NPE at the call site on
null and return a one-element array containing the empty string when the
input string is empty. There was only one place relying on this behavior
and the call site has been modified accordingly.
Folds the helper class for random object generation into the
abstract sort test class. Removes a few references to ESTestCase
that were not needed due to inheriting from it along the way.
The query shard reset() method resets some internal state in the
query shard context, like clearing query names, the filter flag
or named queries. The problem with this method being public is
that it currently (miss?) used for modifying an existing context
for recursive invocatiob, but the contexts that have been reseted
that way cannot be properly set back to their previous state.
This PR is a step towards removing reset() entirely by first making
it only be used internally in QueryShardContext. In places where
reset() was used we can either create new QueryShardContexts or
modify the existing context because it is discarded afterwards anyway.
Ryan Ernst
Nik Everett
Simon Willnauer
Ali Beyad
Simon Willnauer
Christoph Büscher
Nicholas Knize
Jason Tedor
javanna
Martijn van Groningen
Tanguy Leroux
Clinton Gormley
Alexander Reelsen
Chris Earle
Yannick Welsch
Jim Ferenczi
Igor Motov
Justin Patrin
LeeDr
Adrien Grand
Boaz Leskes
Daniel Mitterdorfer
Tal Levy
gfyoung
Britta Weber
Colin Goodheart-Smithe
Alex Benusovich
Lee Hinman
Mike McCandless
Florian Hopf
Jeff Evans
Areek Zillur
Alexander Kazakov
Alexander Lin
trangvh
Jared Carey
Jun Ohtani
Robert Muir
Michael McCandless
Robert Muir
Britta Weber
G. Richard Bellamy
markharwood
Daniel Mitterdorfer
polyfractal
Zachary Tong
Olivier Bourgain
Gabriel Moskovicz
Johnny Lim
Isabel Drost-Fromm