Today we have two test base classes that have a lot in common when it comes to testing wire and xcontent serialization: `AbstractSerializingTestCase` and `AbstractXContentStreamableTestCase`. There are subtle differences though between the two, in the way they work, what can be overridden and features that they support (e.g. insertion of random fields).
This commit introduces a new base class called `AbstractWireTestCase` which holds all of the serialization test code in common between `Streamable` and `Writeable`. It has two minimal subclasses called `AbstractWireSerializingTestCase` and `AbstractStreamableTestCase` which are specialized for `Writeable` and `Streamable`.
This commit also introduces a new test class called `AbstractXContentTestCase` for all of the xContent testing, which holds a testFromXContent method for parsing and rendering to xContent. This one can be delegated to from the existing `AbstractStreamableXContentTestCase` and `AbstractSerializingTestCase` so that we avoid code duplicate as much as possible and all these base classes offer the same functionalities in the same way. Having this last base class decoupled from the serialization testing may also help with the REST high-level client testing, as there are some classes where it's hard to implement equals/hashcode and this makes it possible to override `assertEqualInstances` for custom equality comparisons (also this base class doesn't require implementing equals/hashcode as it doesn't test such methods.
This commit fixes a bug that was introduced in PR #27415 for 6.1
and 7.0 where a change to support MULTIPOINT shapes mucked up
indexing of standalone points.
Previously the message reported when `node_concurrent_outgoing_recoveries`
resulted in a `THROTTLE` decision included the reporting node's ID rather than
that of the primary. This commit fixes that.
Fixes#28777.
This commit makes AcknowledgedResponse implement ToXContentObject, so that the response knows how to print its own content out to XContent, which allows us to remove AcknowledgedRestListener.
These tests need to be skipped. They cause plugins to be loaded which
causes a child classloader to be opened. We do not want to add the
permissions to be able to close a classloader solely for these tests,
and the JARs created in the test can not be deleted on Windows until the
classloader is closed. Since this will not happen before test teardown,
the test will fail on Windows. So, we skip these tests.
This allows us to save a bit of code, but also adds more coverage as it tests serialization which was missing in some of the existing tests. Also it requires implementing equals/hashcode and we get the corresponding tests for them for free from the base test class.
* Pass InputStream when creating XContent parser
Rather than passing the raw `BytesReference` in when creating the xcontent
parser, this passes the StreamInput (which is an InputStream), this allows us to
decouple XContent from BytesReference.
This also removes the use of `commons.Booleans` so it doesn't require more
external commons classes.
Related to #28504
* Undo boolean removal
* Enhance deprecation javadoc
Add support version and version_type in ingest pipelines
Add support for setting document version and version type in set
processor of an ingest pipeline.
* Remove log4j dependency from elasticsearch-core
This removes the log4j dependency from our elasticsearch-core project. It was
originally necessary only for our jar classpath checking. It is now replaced by
a `Consumer<String>` so that the es-core dependency doesn't have external
dependencies.
The parts of #28191 which were moved in conjunction (like `ESLoggerFactory` and
`Loggers`) have been moved back where appropriate, since they are not required
in the core jar.
This is tangentially related to #28504
* Add javadocs for `output` parameter
* Change @code to @link
Pruning tombstones is best effort and should not block if a key is currently
locked. This can cause a deadlock in rare situations if we switch of append
only optimization while heavily updating the same key in the engine
while the LiveVersionMap is locked. This is very rare since this code
patch only executed every 15 seconds by default since that is the interval
we try to prune the deletes in the version map.
Closes#28714
This commit fixes an issue with setting plugin.mandatory to include a
meta-plugin. The issue here is that the names that we collect are the
underlying plugins, not the meta-plugin. We should not use the
underlying plugins instead using the names of non-meta plugins and the
names of meta-plugins. This commit addresses this. The strategy here is
that when we look at the installed plugins on the filesystem, we keep
track of which ones are meta-plugins and carry this information up to
where check which plugins are installed against the mandatory plugins.
Relates #28710
Today we have several levels of indirection to acquire an Engine.Searcher.
We first acquire a the reference manager for the scope then acquire an
IndexSearcher and then create a searcher for the engine based on that.
This change simplifies the creation into a single method call instead of
3 different ones.
The node stats API enables filtlering the top-level stats for only
desired top-level stats. Yet, this was never enabled for adaptive
replica selection stats. This commit enables this. We also add setting
these stats on the request builder, and fix an inconsistent name in a
setter.
Relates #28721
We currently revisit the index deletion policy whenever the global
checkpoint has advanced enough. We should also revisit the deletion
policy after releasing the last snapshot of a snapshotting commit. With
this change, the old index commits will be cleaned up as soon as
possible.
Follow-up of #28140https://github.com/elastic/elasticsearch/pull/28140#discussion_r162458207
Today we maintain a copy of every delete in the live version maps. This is unnecessary
and might add quite some overhead if maps grow large. This change moves out the deletes
tracking into the tombstone map only and relies on the cleaning of tombstones when deletes
are collected.
The AdaptiveSelectionStats object serializes the clientOutgoingConnections map that's concurrently updated in SearchTransportService. Serializing the map consists of first writing the size of the map and then serializing the entries. If the number of entries changes while the map is being serialized, the size and number of entries go out of sync. The deserialization routine expects those to be in sync though.
Closes#28713
The acquireIndexCommit was separated into acquireSafeIndexCommit and
acquireLastIndexCommit, however the test was not updated accordingly.
Relates #28271
Previously we introduced a new parameter to `acquireIndexCommit` to
allow acquire either a safe commit or a last commit. However with the
new parameters, callers can provide a nonsense combination - flush first
but acquire the safe commit. This commit separates acquireIndexCommit
method into two different methods to avoid that problem. Moreover, this
change should also improve the readability.
Relates #28038
* Remove deprecated createParser methods
This removes the final instances of the callers of `XContent.createParser` and
`XContentHelper.createParser` that did not pass in the `DeprecationHandler`. It
also removes the now-unused deprecated methods and fully removes any mention of
Log4j or LoggingDeprecationHandler from the XContent code.
Relates to #28504
* Add comments in JsonXContentGenerator
This test has a race condition. The action listener used to listen for
connections has a guard against being executed twice. However, this
listener can be executed twice. After on success is invoked the test
starts to tear down. At this point, the threads the test forked will
terminate and the remote cluster connection will be closed. However, a
thread forked to the management thread pool by the remote cluster
connection can still be executing and try to continue connecting. This
thread will be cancelled when the remote cluster connection is closed
and this leads to the action listener being invoked again. To address
this, we explicitly check that the reason that on failure was invoked
was cancellation, and we assert that the listener was already previously
invoked. Interestingly, this issue has always been present yet a recent
change (#28667) exposed errors that occur on tasks submitted to the
thread pool and were silently being lost.
Relates #28695
In order to allow us to gradually move to passing the deprecation handler is, we
need a shim that contains both the non-passed and passed version.
Relates to #28504
When we submit a task to a thread pool for asynchronous execution, we
are returned a future. Since we submitted to go asynchronous, these
futures are not inspected for failure (we would have to block a thread
to do that). While we have on failure handlers for exceptions that are
thrown during execution, we do not handle throwables that are not
exceptions and these end up silently lost. This commit adds a check
after the runnable returns that inspects the status of the future. If an
unhandled throwable occurred during execution, this throwable is
propogated out where it will land in the uncaught exception handler.
Relates #28667
We have code used in the networking layer to search for errors buried in
other exceptions. This code will be useful in other locations so with
this commit we move it to our exceptions helpers.
Relates #28691
Currently the Translog constructor is capable both of opening an existing translog and creating a
new one (deleting existing files). This PR separates these two into separate code paths. The
constructors opens files and a dedicated static methods creates an empty translog.
A recent change moved computing declared versions from using reflection
which occurred repeatedly to a lazily-initialized holder so that
declared versions are computed exactly once. This commit adds a comment
explaining the motivation for this change.
* Move more XContent.createParser calls to non-deprecated version
Part 2
This moves more of the callers to pass in the DeprecationHandler.
Relates to #28504
* Use parser's deprecation handler where appropriate
* Use logging handler in test that uses deprecated field on purpose
* Move more XContent.createParser calls to non-deprecated version
This moves more of the callers to pass in the DeprecationHandler.
Relates to #28504
* Use parser's deprecation handler where available
This method is called often enough (when computing minimum compatibility
versions) that the reflection and sort can be seen while profiling. This
commit addresses this issue by computing the declared versions exactly
once.
Relates #28661
If a tragic even happens while we are refreshing a searcher/reader the engine can open new files on a store that is already closed
For instance the following CI job failed because a merge was concurrently called on a failing shard:
https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+oracle-java10-periodic/84
This change increments the ref count of the store during a refresh in order to postpone the closing after a tragic event.
When installing a meta plugin we check the dependency of each sub plugin during the installation.
Though if the extended plugin is part of the meta plugin the installation fails because we only check for plugins that are
already installed. This change is a workaround that extracts all plugins (even those that are not fully installed yet) when the dependency check
is made during the installation. Note that this is how the plugin installation worked before https://github.com/elastic/elasticsearch/pull/28581.
This commit moves the semantic validation (like which version a plugin
was built for or which java version it is compatible with) from reading
a plugin descriptor, leaving the checks on the format of the descriptor
intact.
relates #28540
* NXYSignificanceHeuristic.java: implementation of equality would have
failed with a ClassCastException when comparing to another type.
Replaced with the Eclipse generated form.
Today we use the persisted global checkpoint to calculate the starting
seqno in peer-recovery. However we do not check whether the translog
actually belongs to the existing Lucene index when reading the global
checkpoint. In some rare cases if the translog does not match the Lucene
index, that recovering replica won't be able to complete its recovery.
This can happen as follows.
1. Replica executes a file-based recovery
2. Index files are copied to replica but crashed before finishing the recovery
3. Replica starts recovery again with seq-based as the copied commit is safe
4. Replica fails to open engine because translog and Lucene index are not matched
5. Replica won't be able to recover from primary
This commit enforces the translogUUID requirement when reading the
global checkpoint directly from the checkpoint file.
Relates #28435
This commit changes the state format that was previously passed in to
`MetaDataStateFormat` to always use Smile. This doesn't actually change the
format, since we have used Smile for writing the format since at least 5.0. This
removes the automatic detection of the state format when reading state, since
any state that could be processed in 6.x and 7.x would already have been written
in Smile format.
This is work towards removing the deprecated methods in the XContent code where
we do automatic content-type detection.
Relates to #28504
This commit forces the depth_first mode for `terms` aggregation that contain a sub-aggregation that need to access the score of the document
in a nested context (the `terms` aggregation is a child of a `nested` aggregation). The score of children documents is not accessible in
breadth_first mode because the `terms` aggregation cannot access the nested context.
Close#28394
* Search option terminate_after does not handle post_filters and aggregations correctly
This change fixes the handling of the `terminate_after` option when post_filters (or min_score) are used.
`post_filter` should be applied before `terminate_after` in order to terminate the query when enough document are accepted
by the post_filters.
This commit also changes the type of exception thrown by `terminate_after` in order to ensure that multi collectors (aggregations)
do not try to continue the collection when enough documents have been collected.
Closes#28411
The is a follow up to #28567 changing the method used to capture stack traces, as requested
during the review. Instead of creating a throwable, we explicitly capture the stack trace of the
current thread. This should Make Jason Happy Again ™️ .
Generalizing BWC building so that there is less code to modify for a release. This ensures we do not
need to think about what major or minor version is in the gradle code. It follows the general rules of the
elastic release structure. For more information on the rules, see the VersionCollection's javadoc.
This also removes the additional bwc snapshots that will never be released, such as 6.0.2, which were
being built and tested against every time we ran bwc tests.
Additionally, it creates 4 new projects that correspond to the different types of snapshots that may exist
for a given version. Its possible to now run those individual tasks to work out bwc logic whereas
previously it was impossible and the entire suite of bwc tests had to be run to work out any logic
changes in the build tools' bwc project. Please note that if the project does not make sense for the
version that is current, that an error will be thrown from that individual project if an attempt is made to
run it.
This should allow for automating the version bumps as well, since it removes all the hardcoded version
logic from the configs.
This removes all the server references to the deprecated `ParseField.match`
method in favor of the method that passes in the deprecation logger.
Relates to #28504
The bug was caused because the ScriptService had no reference to a ClusterState instance,
because it received the ClusterState after the PipelineStore. This only is the case
after a restart.
A bad side effect is that during a restart, any pipeline to be loaded after the pipeline that uses a stored script,
was never loaded, which caused many pipeline to be missing in bulk / index request api calls.
After copying over the Lucene segments during peer recovery, we call cleanupAndVerify which removes all other files in the directory and which then calls getMetadata to check if the resulting files are a proper index. There are two issues with this:
- the directory is not fsynced after the deletions, so that the call to getMetadata, which lists files in the directory, can get a stale view, possibly seeing a deleted corruption marker (which leads to the exception seen in #28435)
- failing to delete a corruption marker should result in a hard failure, as the shard is otherwise unusable.
The shard not-available exceptions are currently ignored in the
replication as the best effort avoids failing not-yet-ready shards.
However these exceptions can also happen from fully active shards. If
this is the case, we may have skipped important failures from replicas.
Since #28049, only fully initialized shards are received write requests.
This restriction allows us to handle all exceptions in the replication.
There is a side-effect with this change. If a replica retries its peer
recovery second time after being tracked in the replication group, it
can receive replication requests even though it's not-yet-ready. That
shard may be failed and allocated to another node even though it has a
good lucene index on that node.
This PR does not change the way we report replication errors to users,
hence the shard not-available exceptions won't be reported as before.
Relates #28049
Relates #28534
Today we acquire a permit from the shard to coordinate between indexing operations, recoveries and other state transitions. When we leak an permit it's practically impossible to find who the culprit is. This PR add stack traces capturing for each permit so we can identify which part of the code is responsible for acquiring the unreleased permit. This code is only active when assertions are active.
The output is something like:
```
java.lang.AssertionError: shard [test][1] on node [node_s0] has pending operations:
--> java.lang.RuntimeException: something helpful 2
at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:223)
at org.elasticsearch.index.shard.IndexShard.<init>(IndexShard.java:322)
at org.elasticsearch.index.IndexService.createShard(IndexService.java:382)
at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:514)
at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:143)
at org.elasticsearch.indices.cluster.IndicesClusterStateService.createShard(IndicesClusterStateService.java:552)
at org.elasticsearch.indices.cluster.IndicesClusterStateService.createOrUpdateShards(IndicesClusterStateService.java:529)
at org.elasticsearch.indices.cluster.IndicesClusterStateService.applyClusterState(IndicesClusterStateService.java:231)
at org.elasticsearch.cluster.service.ClusterApplierService.lambda$callClusterStateAppliers$6(ClusterApplierService.java:498)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.elasticsearch.cluster.service.ClusterApplierService.callClusterStateAppliers(ClusterApplierService.java:495)
at org.elasticsearch.cluster.service.ClusterApplierService.applyChanges(ClusterApplierService.java:482)
at org.elasticsearch.cluster.service.ClusterApplierService.runTask(ClusterApplierService.java:432)
at org.elasticsearch.cluster.service.ClusterApplierService$UpdateTask.run(ClusterApplierService.java:161)
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:566)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:244)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:207)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.base/java.lang.Thread.run(Thread.java:844)
--> java.lang.RuntimeException: something helpful
at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:223)
at org.elasticsearch.index.shard.IndexShard.<init>(IndexShard.java:311)
at org.elasticsearch.index.IndexService.createShard(IndexService.java:382)
at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:514)
at org.elasticsearch.indices.IndicesService.createShard(IndicesService.java:143)
at org.elasticsearch.indices.cluster.IndicesClusterStateService.createShard(IndicesClusterStateService.java:552)
at org.elasticsearch.indices.cluster.IndicesClusterStateService.createOrUpdateShards(IndicesClusterStateService.java:529)
at org.elasticsearch.indices.cluster.IndicesClusterStateService.applyClusterState(IndicesClusterStateService.java:231)
at org.elasticsearch.cluster.service.ClusterApplierService.lambda$callClusterStateAppliers$6(ClusterApplierService.java:498)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at org.elasticsearch.cluster.service.ClusterApplierService.callClusterStateAppliers(ClusterApplierService.java:495)
at org.elasticsearch.cluster.service.ClusterApplierService.applyChanges(ClusterApplierService.java:482)
at org.elasticsearch.cluster.service.ClusterApplierService.runTask(ClusterApplierService.java:432)
at org.elasticsearch.cluster.service.ClusterApplierService$UpdateTask.run(ClusterApplierService.java:161)
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:566)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:244)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:207)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.base/java.lang.Thread.run(Thread.java:844)
```
Currently the master node logs a warning message whenever it receives a
failed shard request. However, this can be noisy because
- Multiple failed shard requests can be issued for a single shard
- Failed shard requests can be still issued for an already failed shard
This commit moves the log-warn to AllocationService in which the failing
shard action actually happens. This is another prerequisite step in
order to not ignore the shard not-available exceptions in the
replication.
Relates #28534
The queue size test has a race condition. Namely the offering thread can
run so quickly completing all of its offering iterations before the
queue size thread ever has a chance to run a single size poll
iteration. This means that the size will never actually be polled and
the test can spuriously fail. What we really want to do here, since this
test is checking for a race condition between polling the size of the
queue and offers to the queue, we want to execute each iteration in
lockstep giving the threads multiple changes for the race between
polling the size and offers to occur. This commit addresses this by
running the two threads in lockstep for multiple iterations so that they
have multiple chances to race.
Relates #28584
* Switch to non-deprecated ParseField.match method for o.e.search
This replaces more of the `ParseField.match` calls with the same call using a
deprecation handler. It encapsulates all of the instances in the
`org.elastsicsearch.search` package.
Relates to #28504
* Address Nik's comments
* Replace more deprecated ParseField.match calls with non-deprecated call
This replaces more of the `ParseField.match` calls with the same call using a
deprecation handler.
Relates to #28504
* Address Nik's comments
Plugin descriptors currently contain an elasticsearch version,
which the plugin was built against, and a java version, which the plugin
was built with. These versions are read and validated, but not stored.
This commit keeps them in PluginInfo so they can be used later.
While seeing the elasticsearch version is less interesting (since it is
enforced to match that of the running elasticsearc node), the java
version is interesting since we only validate the format, not the actual
version. This also makes PluginInfo have full parity with the plugin
properties file.
Today when offering an item to a size blocking queue that is at
capacity, we first increment the size of the queue and then check if the
capacity is exceeded or not. If the capacity is indeed exceeded, we do
not add the item to the queue and immediately decrement the size of the
queue. However, this incremented size is exposed externally even though
the offered item was never added to the queue (this is effectively a
race on the size of the queue). This can lead to misleading statistics
such as the size of a queue backing a thread pool. This commit fixes
this issue so that such a size is never exposed. To do this, we replace
the hidden CAS loop that increments the size of the queue with a CAS
loop that only increments the size of the queue if we are going to be
successful in adding the item to the queue.
Relates #28557
Today when a replica shard detects a new primary shard (via a primary
term transition), we roll the translog generation. However, the
mechanism that we are using here is by reaching through the engine to
the translog directly. By poking all the way through rather than asking
the engine to manage the roll for us we miss:
- taking a read lock in the engine while the roll is occurring
- trimming unreferenced readers
This commit addresses this by asking the engine to roll the translog
generation for us.
Relates #28537
The test expects suggest times in milliseconds that are strictly
positive. Internally they are measured in nanos, it is possible that on
really fast execution this is rounded to 0L, so this should also be an
accepted value.
Closes#28543
We now read the plugin descriptor when removing an old plugin. This is
to check if we are removing a plugin that is extended by another
plugin. However, when reading the descriptor we enforce that it is of
the same version that we are. This is not the case when a user has
upgraded Elasticsearch and is now trying to remove an old plugin. This
commit fixes this by skipping the version enforcement when reading the
plugin descriptor only when removing a plugin.
Relates #28540
A shard is fully baked when it moves to POST_RECOVERY. There is no need to do an extra refresh on shard activation again as the shard has already been refreshed when it moved to POST_RECOVERY.
* Move to non-deprecated XContentHelper.createParser(...)
This moves away from one of the now-deprecated XContentHelper.createParser
methods in favor of specifying the deprecation logger at parser creation time.
Relates to #28449
Note that this doesn't move all the `createParser` calls because some of them
use the already-deprecated method that doesn't specify the XContentType.
* Remove the deprecated (and now non-needed) createParser method
If you call `getDates()` on a long or date type field add a deprecation
warning to the response and log something to the deprecation logger.
This *mostly* worked just fine but if the deprecation logger happens to
roll then the roll will be performed with the script's permissions
rather than the permissions of the server. And scripts don't have
permissions to, say, open files. So the rolling failed. This fixes that
by wrapping the call the deprecation logger in `doPriviledged`.
This is a strange `doPrivileged` call because it doens't check
Elasticsearch's `SpecialPermission`. `SpecialPermission` is a permission
that no-script code has and that scripts never have. Usually all
`doPrivileged` calls check `SpecialPermission` to make sure that they
are not accidentally acting on behalf of a script. But in this case we
are *intentionally* acting on behalf of a script.
Closes#28408
Currently when failing a shard we also mark it as stale (eg. remove its
allocationId from from the InSync set). However in some cases, we need
to be able to fail shards but keep them InSync set. This commit adds
such capacity. This is a preparatory change to make the primary-replica
resync less lenient.
Relates #24841
ava.time has the functionality needed to deal with timezones with varying
offsets correctly, but it also has a bunch of methods that silently let you
forget about the hard cases, which raises the risk that we'll quietly do the
wrong thing at some point in the future.
This change adds the trappy methods to the list of forbidden methods to try and
help stop this from happening.
It also fixes the only use of these methods in the codebase so far:
IngestDocument#deepCopy() used ZonedDateTime.of() which may alter the offset of
the given time in cases where the offset is ambiguous.
This commit switches all the modules and server test code to use the
non-deprecated `ParseField.match` method, passing in the parser's deprecation
handler or the logging deprecation handler when a parser is not available (like
in tests).
Relates to #28449
Today the correctness of synced-flush is guaranteed by ensuring that
there is no ongoing indexing operations on the primary. Unfortunately, a
replica might fall out of sync with the primary even the condition is
met. Moreover, if synced-flush mistakenly issues a sync_id for an out of
sync replica, then that replica would not be able to recover from the
primary. ES prevents that peer-recovery because it detects that both
indexes from primary and replica were sealed with the same sync_id but
have a different content. This commit modifies the synced-flush to not
issue sync_id for out of sync replicas. This change will report the
divergence issue earlier to users and also prevent replicas from getting
into the "unrecoverable" state.
Relates #10032
The primary currently replicates writes to all other shard copies as soon as they're added to the routing table. Initially those shards are not even ready yet to receive these replication requests, for example when undergoing a file-based peer recovery. Based on the specific stage that the shard copies are in, they will throw different kinds of exceptions when they receive the replication requests. The primary then ignores responses from shards that match certain exception types. With this mechanism it's not possible for a primary to distinguish between a situation where a replication target shard is not allocated and ready yet to receive requests and a situation where the shard was successfully allocated and active but subsequently failed.
This commit changes replication so that only initializing shards that have successfully opened their engine are used as replication targets. This removes the need to replicate requests to initializing shards that are not even ready yet to receive those requests. This saves on network bandwidth and enables features that rely on the distinction between a "not-yet-ready" shard and a failed shard.
This assertion does not hold if engine is flushed between the invocation
of translog.uncommittedSizeInBytes and translog.uncommittedOperations.
These two values can be calculated from different commits.
If the translog flush threshold is too small (eg. smaller than the
translog header), we may repeatedly flush even there is no uncommitted
operation because the shouldFlush condition can still be true after
flushing. This is currently avoided by adding an extra guard against the
uncommitted operations. However, this extra guard makes the shouldFlush
complicated. This commit replaces that extra guard by a lower bound for
translog flush threshold. We keep the lower bound small for convenience
in testing.
Relates #28350
Relates #23606
Persistent tasks are build on top of node tasks and provide functionality to restart a task to run on a different coordination node in case the coordinating node is no longer available.
It is up to a persistent task implementation to keep track of status, so that in case the task is restarted, the task can continue were it left off before it was restarted.
This change remove the `CircuitBreakerIT. testParentChecking` test method which fails intermittently in unexpected ways with a `MemoryCircuitBreakerTests. testBorrowingSiblingBreakerMemory` unit test method which can test the borrowing functionality more directly
Closes#28223
This change adds a shallow copy method for aggregation builders. This method returns a copy of the builder replacing the factoriesBuilder and metaDada
This method is used when the builder is rewritten (AggregationBuilder#rewrite) in order to make sure that we create a new instance of the parent builder when sub aggregations are rewritten.
Relates #27782
This change fixes a possible AIOOB during the parsing of the document that contains the indexed shape.
This change ensures that the parsing does not continue when the field that contains the shape has been found.
Closes#28456
Adds allow_partial_search_results flag to search requests with default setting = true.
When false, will error if search either timeouts, has partial errors or has missing shards rather
than returning partial search results. A cluster-level setting provides a default for search requests with no flag.
Closes#27435
Sometimes, in some places, the clocks are set back across midnight, leading to
overlapping days. This was not handled as expected, and this change fixes this.
Additionally, in this situation it is not true that rounding a time down to the
nearest day is a monotonic operation, as asserted in these tests. This change
suppresses those assertions in those rare cases.
Fixes#27966.
This change removes the InternalClient and the InternalSecurityClient. These are replaced with
usage of the ThreadContext and a transient value, `action.origin`, to indicate which component the
request came from. The security code has been updated to look for this value and ensure the
request is executed as the proper user. This work comes from #2808 where @s1monw suggested
that we do this.
While working on this, I came across index template registries and rather than updating them to use
the new method, I replaced the ML one with the template upgrade framework so that we could
remove this template registry. The watcher template registry is still needed as the template must be
updated for rolling upgrades to work (see #2950).
* Moves more classes over to ToXContentObject/Fragment
* Removes ToXContentToBytes
* Removes ToXContent from Enums
* review comment fix
* slight change to use XContantHelper
These members are default initialized on contruction and then set by the
init() method. It's possible that another thread accessing the object
after init() is called could still see the null/0 values, depending on how
the compiler optimizes the code.
This is the x-pack side of the removal of `accumulateExceptions()` for both `TransportNodesAction` and `TransportTasksAction`.
There are occasional, random failures that occur during API calls that are silently ignored from the caller's perspective, which also leads to weird API responses that have no response and also no errors, which is obviously untrue.
With the leniency in Version.java we missed to really setup BWC
testing for static indices. This change brings back the testing and adds
missing bwc indices.
Relates to elastic/elasticsearch#24732
Persistent tasks should verify that completion notification is done for correct version of the task, otherwise a delayed notification from an old node can accidentally close a newly reassigned task.
PersistentTasksCustomMetadata was using a generic param named `Params`. This conflicted with the imported interface `ToXContent.Params`. The java compiler was preferring the generic param over the interface so everything was fine but Eclipse apparently prefers the interface int his case which was screwing up the Hierarchy and causing compile errors in Eclipse. This changes fixes it by renaming the Generic param to `P`
Removes the last pieces of ActionRequest from PersistentTaskRequest and renames it into PersistTaskParams, which is now just an interface that extends NamedWriteable and ToXContent.
This commit is response to the renaming of the random ASCII helper
methods in ESTestCase. The name of this method was changed because these
methods only produce random strings generated from [a-zA-Z], not from
all ASCII characters.
Add a check for the current state waitForPersistentTaskStatus before waiting for the next one. This fixes sporadic failure in testPersistentActionStatusUpdate test.
Fixes#928
Refactors NodePersistentTask and RunningPersistentTask into a single AllocatedPersistentTask. Makes it possible to update Persistent Task Status via AllocatedPersistentTask.
If a persistent task throws an exception, the persistent tasks framework will no longer try to restart the task. This is a temporary measure to prevent threshing the cluster with endless restart attempt. We will revisit this in the future version to make the restart process more robust. Please note, however, that if node executing the task goes down, the task will still be restarted on another node.
Removes the transport layer dependency from PersistentActions, makes PersistentActionRegistry immutable and rename actions into tasks in class and variable names.
Refactors xcontent serialization of Request and Status to use their writable names instead of action name. That simplifies the parsing logic, allows reuse of the same status object for multiple actions and is consistent with how named objects in xcontent are used.
This will allow persistent task implementors to detect whether the executor node has changed or has been unset since the last status update has occured.
This commit moves persistent tasks from ClusterState.Custom to MetaData.Custom and adds ability for the task to remain in the metadata after completion.
Also replaced the DELETING status from JobState with a boolean flag on Job. The state of a job is now stored inside a persistent task in cluster state. Jobs that aren't running don't have a persistent task, so I moved that notion of being deleted to the job config itself.
Original commit: elastic/x-pack@21cd19ca1c
Luca Cavanna
Nicholas Knize
Lee Hinman
jxy
Jason Tedor
Yu
Michael Basnight
Jim Ferenczi
Simon Willnauer
Nhat Nguyen
Yannick Welsch
Justin Wyer
Andy Bristol
olcbean
Boaz Leskes
Ke Li
Tal Levy
Lee Hinman
Scott Somerville
Jim Ferenczi
Ryan Ernst
Robin Neatherway
Martijn van Groningen
Igor Motov
Christoph Büscher
Nik Everett
David Turner
Haris Osmanagić
markharwood
Alan Woodward
Colin Goodheart-Smithe
David Roberts
Jay Modi
David Kyle
Chris Earle
Hendrik Muhs