Scheduling on the threadpool will throw if the scheduler is already
shut down. Handled by treating the rejection like any other non-retryable
exception.
Closes#58021
This moves the code to look up significance heuristics information like
background frequency and superset size out of
`SignificantTermsAggregatorFactory` and into its own home so that it is
easier to pass around. This will:
1. Make us feel better about ourselves for not passing around the
factory, which is really *supposed* to be a throw away thing.
2. Abstract the significance lookup logic so we can reuse it for the
`significant_text` aggregation.
3. Make if very simple to cache the background frequencies which should
speed up when the agg is a sub-agg. We had done this for numerics
but not string-shaped significant terms.
When a search phase fails, we release the context of all successful shards.
Successful shards that rewrite the request to match none will not create any context
since #. This change ensures that we don't try to release a `null` context on these
successful shards.
Closes#57945
Ensures that InternalClusterInfoService's internally cached stats are refreshed whenever the
shard size or disk usage function (to mock out disk usage) are overridden.
Closes#57888
Today `InternalEngine#releaseIndexCommit` fails with an
`AlreadyClosedException` if the engine is closed before the index commit is
released. This can happen if, for example, a node leaves and rejoins the
cluster and acquires an index commit for replica shard allocation concurrently
with shutting the shard down.
There's no need to fail the operation like this: if the engine is shut down
then we will clean up the unreferenced files when it's restarted (or if it's
allocated elsewhere) so we can suppress an `AlreadyClosedException` in this
case. This commit does so.
Fixes#57797
Per 49554 I added standard deviation sampling and variance sampling to the extended stats interface.
Closes#49554
Co-authored-by: Igor Motov <igor@motovs.org>
Co-authored-by: andrewjohnson2 <aj114114@gmail.com>
When reducing `auto_date_histogram` we were using `Rounding#round`
which is quite a bit more expensive than
```
Rounding.Prepared prepared = rounding.prepare(min, max);
long result = prepared.round(date);
```
when rounding to a non-fixed time zone like `America/New_York`. This
stops using the former and starts using the latter.
Relates to #56124
Use the the hack used in `CorruptedBlobStoreRepositoryIT` in more snapshot
failure tests to verify that BwC repository metadata is handled properly
in these so far not-test-covered scenarios.
Also, some minor related dry-up of snapshot tests.
Relates #57798
Adds assertions to Netty to make sure that its threads are not polluted by thread contexts (and
also that thread contexts are not leaked). Moves the ClusterApplierService to use the system
context (same as we do for MasterService), which allows to remove a hack from
TemplateUgradeService and makes it clearer that applying CS updates is fully executing under
system context.
If a node is disconnected we retry. It does not make sense
to retry the recovery if the node is removed from the cluster though.
=> added a CS listener that cancels the recovery for removed nodes
Also, we were running the retry on the `SAME` pool which for each retry will
be the scheduler pool. Since the error path of the listener we use here
will do blocking operations when closing the resources used by the recovery
we can't use the `SAME` pool here since not all exceptions go to the `ActionListenerResponseHandler`
threading like e.g. `NodeNotConnectedException`.
Closes#57585
In ff9e8c622427d42a2d87b4ceb298d043ae3c4e6a we changed the format
used when serializing snapshot failures in the cluster state and
`SnapshotInfo`. This turned them from a short string holding all the
nested exception messages into a multi kb stacktrace in many cases.
This is not great if you snapshot a large number of shards that all fail
for example and massively blows up the size of the GET snapshots response
if there are snapshots with failures in there.
This change reverts to the format used for exceptions before the above commit.
Also, this change short circuits logging and serialization of the failure
for an aborted snapshot where we don't care about the specific message at all
and aligns the message to "aborted" in all cases (current if we aborted before any IO,
it would have been "aborted" and an exception when aborting later during IO).
Previously, hidden indices were not included in snapshots by default, unless
specified using one of the usual methods for doing so: naming indices directly,
using index patterns starting with a ., or specifying expand_wildcards to
a value that includes hidden (e.g. all or hidden,open).
This commit changes the default expand_wildcards value to include hidden
indices.
Fixed two newly introduced issues with rollover:
1. Using auto-expand replicas, rollover could result in unexpected log
messages on future indexes.
2. It did a reroute and other heavy work on the network thread.
Closes#57706
Supersedes #57865
Relates #53965
Allow for optimistic concurrency control during ingest by checking the
sequence number and primary term. This is accomplished by defining
_if_seq_no and _if_primary_term in the pipeline, similarly to _version
and _version_type.
Closes#41255
Co-authored-by: Maria Ralli <mariai.ralli@gmail.com>
The shrink action creates a shrunken index with the target number of shards.
This makes the shrink action data stream aware. If the ILM managed index is
part of a data stream the shrink action will make sure to swap the original
managed index with the shrunken one as part of the data stream's backing
indices and then delete the original index.
(cherry picked from commit 99aeed6acf4ae7cbdd97a3bcfe54c5d37ab7a574)
Signed-off-by: Andrei Dan <andrei.dan@elastic.co>
This commit fixes a bug on the composite aggregation when the index
is sorted and the primary composite source needs to round values (date_histo).
In such case, we cannot take into account the subsequent sources even if they
match the index sort because the rounding of the primary sort value may break
the original index order.
Fixes#57849
This deprecates `Rounding#round` and `Rounding#nextRoundingValue` in
favor of calling
```
Rounding.Prepared prepared = rounding.prepare(min, max);
...
prepared.round(val)
```
because it is always going to be faster to prepare once. There
are going to be some cases where we won't know what to prepare *for*
and in those cases you can call `prepareForUnknown` and stil be faster
than calling the deprecated method over and over and over again.
Ultimately, this is important because it doesn't look like there is an
easy way to cache `Rounding.Prepared` or any of its precursors like
`LocalTimeOffset.Lookup`. Instead, we can just build it at most once per
request.
Relates to #56124
Currently it is possible for a transient network error to disrupt the
start recovery request from the remote to source node. This disruption
is racy with the recovery occurring on the source node. It is possible
for the source node to finish and clear its recovery. When this occurs,
the recovery cannot be reestablished and the "no two start" assertion
is tripped. This commit fixes this issue by allowing two starts if the
finalize request has been received.
Fixes#57416.
Currently, the translog ops request is reentrent when there is a mapping
update. The impact of this is that a translog ops ends up waiting on the
pre-existing listener and it is never completed. This commit fixes this
by introducing a new code path to avoid the idempotency logic.
The action name is passed to the `ChannelListener` and is used for
logging purposes. Currently, we are using the incorrect action name for
the translog ops listener. This commit fixes the issue.
This reworks string flavored implementations of the `terms` aggregation
to save memory when it is under another bucket by dropping the usage of
`asMultiBucketAggregator`.
Adds assertions to Netty to make sure that its threads are not polluted by thread contexts (and
also that thread contexts are not leaked). Moves the ClusterApplierService to use the system
context (same as we do for MasterService), which allows to remove a hack from
TemplateUgradeService and makes it clearer that applying CS updates is fully executing under
system context.
Currently we check that exceptions are the same in the recovery request
tracker test. This is inconsistent because the future wraps the
exception in a new instance. This commit fixes the test by comparing a
random exception message.
Fixes#57199
In #57701 we changed mappings merging so that duplicate fields specified in mappings caused an
exception during validation. This change makes the same exception thrown when metadata fields are
duplicated. This will allow us to be strict currently with plans to make the merging more
fine-grained in a later release.
Currently a network disruption will fail a peer recovery. This commit
adds network errors as retryable actions for the source node.
Additionally, it adds sequence numbers to the recovery request to
ensure that the requests are idempotent.
Additionally it adds a reestablish recovery action. The target node
will attempt to reestablish an existing recovery after a network
failure. This is necessary to ensure that the retries occurring on the
source node provide value in bidirectional failures.
Fix broken numeric shard generations when reading them from the wire
or physically from the physical repository.
This should be the cheapest way to clean up broken shard generations
in a BwC and safe-to-backport manner for now. We can potentially
further optimize this by also not doing the checks on the generations
based on the versions we see in the `RepositoryData` but I don't think
it matters much since we will read `RepositoryData` from cache in almost
all cases.
Closes#57798
When you run a `significant_terms` aggregation on a field and it *is*
mapped but there aren't any values for it then the count of the
documents that match the query on that shard still have to be added to
the overall doc count. I broke that in #57361. This fixes that.
Closes#57402
Before to determine if a field is meta-field, a static method of MapperService
isMetadataField was used. This method was using an outdated static list
of meta-fields.
This PR instead changes this method to the instance method that
is also aware of meta-fields in all registered plugins.
Related #38373, #41656Closes#24422
We want to validate the DataStreams on creation to make sure the future backing
indices would not clash with existing indices in the system (so we can
always rollover the data stream).
This changes the validation logic to allow for a DataStream to be created
with a backing index that has a prefix (eg. `shrink-foo-000001`) even if the
former backing index (`foo-000001`) exists in the system.
The new validation logic will look for potential index conflicts with indices
in the system that have the counter in the name greater than the data stream's
generation.
This ensures that the `DataStream`'s future rollovers are safe because for a
`DataStream` `foo` of generation 4, we will look for standalone indices in the
form of `foo-%06d` with the counter greater than 4 (ie. validation will fail if
`foo-000006` exists in the system), but will also allow replacing a
backing index with an index named by prefixing the backing index it replaces.
(cherry picked from commit 695b242d69f0dc017e732b63737625adb01fe595)
Signed-off-by: Andrei Dan <andrei.dan@elastic.co>
* Fix Bug With RepositoryData Caching
This fixes a really subtle bug with caching `RepositoryData`
that can corrupt a repository.
We were caching `RepositoryData` serialized in the newest
metadata format. This lead to a confusing situation where
numeric shard generations would be cached in `ShardGenerations`
that were not written to the repository because the repository
or cluster did not yet support `ShardGenerations`.
In the case where shard generations are not actually supported yet,
these cached numeric generations are not safe and there's multiple
scenarios where they would be incorrect, leading to the repository
trying to read shard level metadata from index-N that don't exist.
This commit makes it so that cached metadata is always in the same
format as the metadata in the repository.
Relates #57798
This makes it easier to debug where such tasks come from in case they are returned from the get tasks API.
Also renamed the last occurrence of waitForCompletion to waitForCompletionTimeout in get async search request.
Improve efficiency of background indexer by allowing to add
an assertion for failures while they are produced to prevent
queuing them up.
Also, add non-blocking stop to the background indexer so that when
stopping multiple indexers we don't needlessly continue indexing
on some indexers while stopping another one.
Closes#57766
This removes the deprecated `asMultiBucketAggregator` wrapper from
`scripted_metric`. Unlike most other such removals, this isn't likely to
save much memory. But it does make the internals of the aggregator
slightly less twisted.
Relates to #56487
Backport of #57640 to 7.x branch.
Composable templates with exact matches, can match with the data stream name, but not with the backing index name.
Also if the backing index naming scheme changes, then a composable template may never match with a backing index.
In that case mappings and settings may not get applied.
#47711 and #47246 helped to validate that monitoring settings are
rejected at time of setting the monitoring settings. Else an invalid
monitoring setting can find it's way into the cluster state and result
in an exception thrown [1] on the cluster state application (there by
causing significant issues). Some additional monitoring settings have
been identified that can result in invalid cluster state that also
result in exceptions thrown on cluster state application.
All settings require a type of either http or local to be
applicable. When a setting is changed, the exporters are automatically
updated with the new settings. However, if the old or new settings lack
of a type setting an exception will be thrown (since exporters are
always of type 'http' or 'local'). Arguably we shouldn't blindly create
and destroy new exporters on each monitoring setting update, but the
lifecycle of the exporters is abit out the scope this PR is trying to
address.
This commit introduces a similar methodology to check for validity as
#47711 and #47246 but this time for ALL (including non-http) settings.
Monitoring settings are not useful unless there an exporter with a type
defined. The type is used as dependent setting, such that it must
exist to set the value. This ensures that when any monitoring settings
changes that they can only get added to cluster state if the type
exists. If the type exists (and the other validations pass) then the
exporters will get re-built and the cluster state remains valid.
Tests have been included to ensure that all dynamic monitoring settings
have the type as dependent settings.
[1]
org.elasticsearch.common.settings.SettingsException: missing exporter type for [found-user-defined] exporter
at org.elasticsearch.xpack.monitoring.exporter.Exporters.initExporters(Exporters.java:126) ~[?:?]
Armin Braun
Nik Everett
Martijn van Groningen
Mark Tozzi
Igor Motov
Lee Hinman
Jim Ferenczi
Yannick Welsch
David Turner
Alan Woodward
Albert Zaharovits
Gordon Brown
Henning Andersen
Jake Landis
Andrei Dan
Tim Brooks
Dan Hermann
Mayya Sharipova
Luca Cavanna