* Follow up to #44165
* We should just catch all exceptions here and not return errors after the index-N update went through since a subsequent delete attempt by the user would fail with SnapshotMissingException since the snapshot now appears deleted. Also, `SnapshotException` isn't even thrown in the changed spot it seems in the first place and certainly not the only exception possible.
Today a cluster health request can wait on a selection of conditions, but it
does not guarantee that all of these conditions have ever held simultaneously
when it returns. More specifically, if a request sets `waitForEvents()` along
with some other conditions then Elasticsearch will respond when the master has
processed all the expected pending tasks _and then_ the cluster satisfied the
other conditions, but it may be that at the time the cluster satisfied the
other conditions there were undesired pending tasks again.
This commit adjusts the behaviour of `waitForEvents()` to wait for all the
required events to be processed and then, if the resulting cluster state does
not satisfy the other conditions, it will wait until there is a cluster state
that does and then retry the wait-for-events too.
Today the `BatchedRerouteService` submits its delayed reroute task at `HIGH`
priority, but in some cases a lower priority would be more appropriate. This
commit adds the facility to submit delayed reroute tasks at different
priorities, such that each submitted reroute task runs at a priority no lower
than the one requested. It does not change the fact that all delayed reroute
tasks are submitted at `HIGH` priority, but at least it makes this explicit.
This commit creates new base classes for master node actions whose
response types still implement Streamable. This simplifies both finding
remaining classes to convert, as well as creating new master node
actions that use Writeable for their responses.
relates #34389
Today we do not throw a `TranslogCorruptedException` in certain cases of
translog corruption, such as for a corrupted checkpoint file or when an
expected file (either checkpoint or translog) is completely missing. This means
that `elasticsearch-shard` will not truncate the translog in those cases.
This commit strengthens the translog corruption tests to corrupt and/or delete
both translog and checkpoint files, and ensures that a
`TranslogCorruptedException` is thrown in all cases. It also sometimes
simulates a recovery after a crash while rolling the translog generation,
including cases where the rolled checkpoint contains incorrect data.
It also adjusts (and renames) `RemoveCorruptedShardDataCommandIT.getDirs()` to
return only a single path, since in practice this was the only thing that could
happen and yet we were relying on its callers to verify this and not all
callers were doing so.
* Stronger Cleanup Shard Snapshot Directory on Delete
* Use `RepositoryData` to clean up unreferenced `snap-${uuid}.dat` blobs
from shard directories (and index-N) and as a result also clean up data
blobs that are only referenced by them
* Stop cleaning up anything but index-N on shard snapshot creation to
align behavior of shard index-N handling with root path index-N
handling
The responses super.writeTo() method was removed in #44092, so the corresponding
contructor that reads from a stream shouldn't call super itself, even though its
implementation is currently empty.
* Avoid Needless Set Instantiation in InboundMessage
* When `features` is empty (when there's no xpack) we constantly and needless instantiated a few objects here for the empty set on every message
* At least all the way back to 6.x we never use anything but `SMILE` in
production code with this class so I removed the more general
constructor and removed the format leniency from the deserialization
* HLRC: Fix '+' Not Correctly Encoded in GET Req.
* Encode `+` correctly as `%2B` in URL paths
* Keep encoding `+` as space in URL parameters
* Closes#33077
An indexing on a replica should never fail after it was successfully
indexed on a primary. Hence, we should fail an engine if we hit any
failure (document level or tragic failure) when processing an indexing
on a replica.
Relates #43228Closes#40435
Currently we loose information about whether a token list in an AnalyzeAction
response is null or an empty list, because we write a 0 value to the stream in
both cases and deserialize to a null value on the receiving side. This change
fixes this so we write an additional flag indicating whether the value is null
or not, followed by the size of the list and its content.
Closes#44078
This commit moves the Supplier variant of HandledTransportAction to have
a different ordering than the Writeable.Reader variant. The Supplier
version is used for the legacy Streamable, and currently having the
location of the Writeable.Reader vs Supplier in the same place forces
using casts of Writeable.Reader to select the correct super constructor.
This change in ordering allows easier migration to Writeable.Reader.
relates #34389
This is a refactor to current JSON logging to make it more open for extensions
and support for custom ES log messages used inDeprecationLogger IndexingSlowLog , SearchSLowLog
We want to include x-opaque-id in deprecation logs. The easiest way to have this as an additional JSON field instead of part of the message is to create a custom DeprecatedMessage (extends ESLogMEssage)
These messages are regular log4j messages with a text, but also carry a map of fields which can then populate the log pattern. The logic for this lives in ESJsonLayout and ESMessageFieldConverter.
Similar approach can be used to refactor IndexingSlowLog and SearchSlowLog JSON logs to contain fields previously only present as escaped JSON string in a message field.
closes#41350
backport #41354
* With the removal of the incompatible snapshots list in RepositoryData
the get snapshots and get all snapshots methods are equivalent so I
removed one of them
* The assertion added in #44214 is tripped by tests running dedicated
test clusters per test needlessly.This breaks existing tests like the one in #44245.
* Closes#44245
* Safer Shard Snapshot Delete
* We shouldn't delete the snapshot meta file before we update the index
in the shard folder. If we fail to update the index-N after deleting the
existing index-N is broken because the snap- blob it references is gone.
Today if a master-eligible node is converted to a master-ineligible node it may
remain in the voting configuration, meaning that the master node may count its
publish responses as an indication that it has properly persisted the cluster
state. However master-ineligible nodes do not properly persist the cluster
state, so it is not safe to count these votes.
This change adjusts `CoordinationState` to take account of this from a safety
point of view, and also adjusts the `Coordinator` to prevent such nodes from
joining the cluster. Instead, it triggers a reconfiguration to remove from the
voting configuration a node that now appears to be master-ineligible before
processing its join.
Backport of #43688, see #44260.
* We don't have to calculate the start and end times form the shards for the status API, we have the start time available from the CS or the `SnapshotInfo` in the repo and can either take the end time form the `SnapshotInfo` or
take the most recent time from the shard stats for in progress snapshots
* Closes#43074
For this test, we randomize the CLUSTER_MAX_CLAUSE_COUNT on test setup
(@BeforeClass) between 50 and 100. Some queries in the test generate 56 clauses
which hasn't been an issue before LUCENE-8811, but we slightly need to increase
the minimal possible clause count now.
Closes#44192
This will help in investigations where the real memory circuit breaker is tripped to better understand
on what the actual memory is used, i.e. whether it's a temporary thing (e.g. requests) in contrast to
more permanently allocated memory (e.g. accounting).
* Cleans up all root level temp., snap-%s.dat, meta-%s.dat blobs that aren't referenced by any snapshot to deal with dangling blobs left behind by delete and snapshot finalization failures
* The scenario that get's us here is a snapshot failing before it was finalized or a delete failing right after it wrote the updated index-(N+1) that doesn't reference a snapshot anymore but then fails to remove that snapshot
* Not deleting other dangling blobs since that don't follow the snap-, meta- or tempfile naming schemes to not accidentally delete blobs not created by the snapshot logic
* Follow up to #42189
* Same safety logic, get list of all blobs before writing index-N blobs, delete things after index-N blobs was written
* Fix ShrinkIndexIT
* Move this test suit to cluster scope. Currently, `testShrinkThenSplitWithFailedNode` stops a random node which randomly turns out to be the only shared master node so the cluster reset fails on account of the fact that no shared master node survived.
* Closes#44164
In some cases we need to parse some XContent that is already parsed into
a map. This is currently happening in handling source in SQL and ingest
processors as well as parsing null_value values in geo mappings. To avoid
re-serializing and parsing the value again or writing another map-based
parser this commit adds an iterator that iterates over a map as if it was
XContent. This makes reusing existing XContent parser on maps possible.
Relates to #43554
With connection management now being non-blocking, we can make NodeConnectionsService
avoid the use of MANAGEMENT threads that are blocked during the connection attempts.
I had to fiddle a bit with the tests as testPeriodicReconnection was using both the mock Threadpool
from the DeterministicTaskQueue as well as the real ThreadPool initialized at the test class level,
which resulted in races.
* Reduce Number of List Calls During Snapshot Create and Delete
Some obvious cleanups I found when investigation the API call count
metering:
* No need to get the latest generation id after loading latest
repository data
* Loading RepositoryData already requires fetching the latest
generation so we can reuse it
* Also, reuse list of all root blobs when fetching latest repo
generation during snapshot delete like we do for shard folders
* Lastly, don't try and load `index--1` (N = -1) repository data, it
doesn't exist -> just return the empty repo data initially
Simplifies AbstractSimpleTransportTestCase to use JVM-local ports and also adds an assertion so
that cases like #44134 can be more easily debugged. The likely reason for that one is that a test,
which was repeated again and again while always spawning a fresh Gradle worker (due to Gradle
daemon) kept increasing Gradle worker IDs, causing an overflow at some point.
* Improve Repository Consistency Check in Tests (#44099)
* Check that index metadata as well as snapshot metadata always exists
when referenced by other metadata
* Fix SnapshotResiliencyTests on ExtraFS (#44113)
* As a result of #44099 we're now checking more directories and have to
ignore the `extraN` folders for those like we do for indices already
* Closes#44112
* The incompatible snapshots logic was created to track 1.x snapshots that
became incompatible with 2.x
* It serves no purpose at this point
* It adds an additional GET request to every loading of
RepositoryData (from loading the incompatible snapshots blob)
By default, we don't check ranges while indexing geo_shapes. As a
result, it is possible to index geoshapes that contain contain
coordinates outside of -90 +90 and -180 +180 ranges. Such geoshapes
will currently break SQL and ML retrieval mechanism. This commit removes
these restriction from the validator is used in SQL and ML retrieval.
The base classes for transport requests and responses currently
implement Streamable and Writeable. The writeTo method on these base
classes is implemented with an empty implementation. Not only does this
complicate subclasses to think they need to call super.writeTo, but it
also can lead to not implementing writeTo when it should have been
implemented, or extendiong one of these classes when not necessary,
since there is nothing to actually implement.
This commit removes the empty writeTo from these base classes, and fixes
subclasses to not call super and in some cases implement an empty
writeTo themselves.
relates #34389
AggregatorFactory was generic over itself, but it doesn't appear we
use this functionality anywhere (e.g. to allow the super class
to declare arguments/return types generically for subclasses to
override). Most places use a wildcard constraint, and even when a
concrete type is specified it wasn't used.
But since AggFactories are widely used, this led to
the generic touching many pieces of code and making type signatures
fairly complex
PrimaryAllocationIT#testForceStaleReplicaToBePromotedToPrimary
relies on the flushing when a shard is no long assigned. This behavior,
however, can be randomly disabled in MockInternalEngine.
Closes#44049
The `ShardFailedClusterStateTaskExecutor` fails some shards, which performs a
reroute, but then sometimes schedules a followup reroute. It's not clear from
the code why this followup is necessary, so this commit adds a short comment
describing why it's necessary.
This commit replaces usages of Streamable with Writeable for the
MultiSearchRequest class.
I ran into this when developing a custom action that reuses
MultiSearchRequest in the enrich branch.
Relates to #34389
Today the `ClusterInfoService` requires the `DiskThresholdMonitor` at
construction time so that it can notify it when nodes report changes in their
disk usage, but this is awkward to construct: the `DiskThresholdMonitor`
requires a `RerouteService` which requires an `AllocationService` which comees
from the `ClusterModule` which requires the `ClusterInfoService`.
Today we break the cycle with a `LazilyInitializedRerouteService` which is
itself a little ugly. This commit replaces this with a more traditional
subject/observer relationship between the `ClusterInfoService` and the
`DiskThresholdMonitor`.
Today `testOnlyBlocksOnConnectionsToNewNodes` fails (extremely rarely) if the
last attempt to connect to `node0` is delayed for so long that the test runs
`nodeConnectionsBlocks.clear()` before the connection attempt obtains the
expected connection block. We can turn this into a reliable failure with this
delay:
```diff
diff --git a/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java b/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java
index f48413824d3..9a1d0336bcd 100644
--- a/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java
+++ b/server/src/main/java/org/elasticsearch/cluster/NodeConnectionsService.java
@@ -300,6 +300,13 @@ public class NodeConnectionsService extends AbstractLifecycleComponent {
private final Runnable connectActivity = () -> threadPool.executor(ThreadPool.Names.MANAGEMENT).execute(new AbstractRunnable() {
@Override
protected void doRun() {
+
+ try {
+ Thread.sleep(500);
+ } catch (InterruptedException e) {
+ throw new AssertionError("unexpected", e);
+ }
+
assert Thread.holdsLock(mutex) == false : "mutex unexpectedly held";
transportService.connectToNode(discoveryNode);
consecutiveFailureCount.set(0);
```
This commit reverts the extra logging introduced in #43979 and fixes this
failure by waiting for the connection attempt to hit the barrier before
removing it.
Fixes#40170
Since #42636 we no longer treat connections specially when simulating a
blackholed connection. This means that at the end of the safety phase we may
have just started a connection attempt which will time out, but the default
timeout is 30 seconds, much longer than the 2 seconds we normally allow for
post-safety-phase discovery. This commit adds time for such a connection
attempt to time out.
It also fixes some spurious logging of `this` that now refers to an object with
an unhelpful `toString()` implementation introduced in #42636.
Fixes#44073
Refactor ScrollableHitSource to pump data out and have a simplified
interface (callers should no longer call startNextScroll, instead they
simply mark that they are done with the previous result, triggering a
new batch of data). This eases making reindex resilient, since we will
sometimes need to rerun search during retries.
Relates #43187 and #42612
Today the `index.routing.allocation.initial_recovery._id` setting can only be
set on indices that are the result of a shrink, but the filtered allocation
decider also applies this filter to shards with a recovery source of
`EMPTY_STORE`. The only way to have this setting set while the recovery source
is `EMPTY_STORE` is to force-allocate an empty primary, but such a forced
allocation ignores this allocation decider.
This commit simplifies the allocation decider so that the `initial_recovery`
setting only applies to shards with a recovery source of `LOCAL_SHARDS`.
* Fix DedicatedClusterSnapshotRestoreIT testSnapshotWithStuckNode
* See comment in the test: The problem is that when the snapshot delete works out partially on master failover and the retry fails on `SnapshotMissingException` no repository cleanup is run => we still failed even with repo cleanup logic in the delete path now
* Fixed the test by rerunning a create snapshot and delete loop to clean up the repo before verifying file counts
* Closes#39852
* Missed this one in #42189 and it randomly runs into a situation where the broken mock repo is broken such that we can't get to a consistent end state via a delete
* Closes#43498
Today we prevent any index that is actively snapshotted or restored to be closed.
This verification is done during the execution of the first phase of index closing
(ie before blocking the indices).
We should also do this verification again in the last phase of index closing
(ie after the shard sanity checks and right before actually changing the index
state and the routing table) because a snapshot/restore could sneak in while
the shards are verified-before-close.
Provides a hook for aggregations to introspect the `ValuesSourceType` for a user supplied Missing value on an unmapped field, when the type would otherwise be `ANY`. Mapped field behavior is unchanged, and still applies the `ValuesSourceType` of the field. This PR just provides the hook for doing this, no existing aggregations have their behavior changed.
* In the current codebase it is hardly obvious what code operates on a shard and is run by a datanode what code operates on the global metadata and is run on master
* Fixed by adjusting the method names accordingly
* The nested context classes don't add much if any value, they simply spread out the parameters that go into a shard snapshot create or delete all over the place since their
constructors can be inlined in all spots
* Fixed by flattening the nested classes into BlobStoreRepository
* Also:
* Inlined the other single use inner classes
* Remove some obvious dead code
* Move assert methods that were only used in a single test class to the child they belong to
* Inline some redundant methods
If an index is the result of a shrink then it will have a value set for
`index.routing.allocation.initial_recovery._id`. If this index is subsequently
split then this value will be copied over, forcing the initial allocation of
the split shards to occur on the node on which the shrink took place. Moreover
if this node no longer exists then the split will fail. This commit suppresses
the copying of this setting when splitting an index.
Fixes#43955
* Use ability to list child "folders" in the blob store to implement recursive delete on all stale index folders when cleaning up instead of using the diff between two `RepositoryData` instances to cover aborted deletes
* Runs after ever delete operation
* Relates #13159 (fixing most of this issues caused by unreferenced indices, leaving some meta files to be cleaned up only)
Joda allowed for date_optional_time and strict_date_optional_time a decimal point to be . dot or , comma
For our java.time implementation we should also extend this for strict_date_optional_time-nanos
the approach to fix this is the same as in iso8601 parser
closes#43730
This PR enables the indexing optimization using sequence numbers on
replicas. With this optimization, indexing on replicas should be faster
and use less memory as it can forgo the version lookup when possible.
This change also deactivates the append-only optimization on replicas.
Relates #34099
This commit converts the ConnectionManager's openConnection and connectToNode methods to
async-style. This will allow us to not block threads anymore when opening connections. This PR also
adapts the cluster coordination subsystem to make use of the new async APIs, allowing to remove
some hacks in the test infrastructure that had to account for the previous synchronous nature of the
connection APIs.
These assertions do not hold true when a master fails during publication and quickly becomes
master again, publishing a new cluster state in a higher term which races against the previous
cluster state publication to self (which does not matter anyway).
Relates #43994Closes#44012
This commit ensures that cluster state publications to self also go through the transport layer. This
allows voting-only nodes to intercept the publication to self.
Fixes an issue discovered by a test failure where a voting-only node, which was the only
bootstrapped node, would not step down as master after state transfer because publishing to self
would succeed.
Closes#43631
Today `RetentionLeaseSyncAction.Request` and
`RetentionLeaseBackgroundSyncAction.Request` both describe themselves as
`Request{...}` in the value returned from their respective `toString()`
methods. This commit adds the name of the owning class to both so we have
something a bit easier to search for and so we can distinguish foreground from
background syncs in logs and test failures and so on.
This commit changes the way we manage refreshes in the index engines.
Instead of relying on a SearcherManager, this change uses a ReaderManager that
creates ElasticsearchDirectoryReader when needed. Searchers are now created on-demand
(when acquireSearcher is called) from the current ElasticsearchDirectoryReader.
It also slightly changes the Engine.Searcher to extend IndexSearcher in order
to simplify the usage in the consumer.
Currently we log a deprecation warning to the types removal in
RestGetIndicesAction even if the REST method is HEAD, which is used by the
indices.exists API. Since the body is empty in this case we should not need to
show the deprecation warning.
Closes#43905
The test IndexShardIT.testIndexCanChangeCustomDataPath() fails
on 7.x and 7.3 because the translog cannot be recovered.
While I can't reproduce the issue, I think it has been introduced in #43752
which changed ReadOnlyEngine so that it opens the translog in its
constructor in order to load the translog stats. This opening writes a
new checkpoint file, but because 7.x/7.3 does not wait for shards to be
started after being closed, the test immediately starts to copy shard files
to a new directory and possibly does not copy all the required translog files.
By waiting for the shards to be started after being closed, we ensure
that the shards (and engines) have been correctly initialized and that
the translog checkpoint file is not currently being written.
closes#43964
This brings TokenizerFactory into line with CharFilterFactory and TokenFilterFactory,
and removes the need to pass around tokenizer names when building custom analyzers.
As this means that TokenizerFactory is no longer a functional interface, the commit also
adds a factory method to TokenizerFactory to make construction simpler.
Disjunction over two individual terms in a phrase query with multi-word synonyms
wrongly applies a prefix query to each of these terms. This change fixes this bug
by inversing the logic to use prefixes on `phrase_prefix` queries only.
Closes#43308
This commit changes async IO processor to release the promiseSemaphore
before notifying consumers. This ensures that a bad consumer that
sometimes does blocking (or otherwise slow) operations does not halt the
processor. This should slightly increase the concurrency for shard
fsync, but primarily improves safety so that one bad piece of code has
less effect on overall system performance.
Enables libs/geo parser to return a geometry format object that can
perform both serialization and deserialization functions. This can
be useful for ingest nodes that are trying to modify an existing
geometry in the source.
Relates to #43554
This is a prerequisite of #42189:
* Add directory delete method to blob container specific to each implementation:
* Some notes on the implementations:
* AWS + GCS: We can simply exploit the fact that both AWS and GCS return blobs lexicographically ordered which allows us to simply delete in the same order that we receive the blobs from the listing request. For AWS this simply required listing without the delimiter setting (so we get a deep listing) and for GCS the same behavior is achieved by not using the directory mode on the listing invocation. The nice thing about this is, that even for very large numbers of blobs the memory requirements are now capped nicely since we go page by page when deleting.
* For Azure I extended the parallelization to the listing calls as well and made it work recursively. I verified that this works with thread count `1` since we only block once in the initial thread and then fan out to a "graph" of child listeners that never block.
* HDFS and FS are trivial since we have directory delete methods available for them
* Enhances third party tests to ensure the new functionality works (I manually ran them for all cloud providers)
IndexAnalyzers has a close() method that should iterate through all its wrapped
analyzers and close each one in turn. However, instead of delegating to the
analyzers' close() methods, it instead wraps them in a Closeable interface,
which just returns a list of the analyzers. In addition, whitespace normalizers are
ignored entirely.
When profiling a call to `AllocationService#reroute()` in a large cluster
containing allocation filters of the form `node-name-*` I observed a nontrivial
amount of time spent in `Regex#simpleMatch` due to these allocation filters.
Patterns ending in a wildcard are not uncommon, and this change treats them as
a special case in `Regex#simpleMatch` in order to shave a bit of time off this
calculation. It also uses `String#regionMatches()` to avoid an allocation in
the case that the pattern's only wildcard is at the start.
Microbenchmark results before this change:
Result "org.elasticsearch.common.regex.RegexStartsWithBenchmark.performSimpleMatch":
1113.839 ±(99.9%) 6.338 ns/op [Average]
(min, avg, max) = (1102.388, 1113.839, 1135.783), stdev = 9.486
CI (99.9%): [1107.502, 1120.177] (assumes normal distribution)
Microbenchmark results with this change applied:
Result "org.elasticsearch.common.regex.RegexStartsWithBenchmark.performSimpleMatch":
433.190 ±(99.9%) 0.644 ns/op [Average]
(min, avg, max) = (431.518, 433.190, 435.456), stdev = 0.964
CI (99.9%): [432.546, 433.833] (assumes normal distribution)
The microbenchmark in question was:
@Fork(3)
@Warmup(iterations = 10)
@Measurement(iterations = 10)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Benchmark)
@SuppressWarnings("unused") //invoked by benchmarking framework
public class RegexStartsWithBenchmark {
private static final String testString = "abcdefghijklmnopqrstuvwxyz";
private static final String[] patterns;
static {
patterns = new String[testString.length() + 1];
for (int i = 0; i <= testString.length(); i++) {
patterns[i] = testString.substring(0, i) + "*";
}
}
@Benchmark
public void performSimpleMatch() {
for (int i = 0; i < patterns.length; i++) {
Regex.simpleMatch(patterns[i], testString);
}
}
}
* Optimize Snapshot Finalization
* Delete index-N blobs and segement blobs in one single bulk delete instead of in separate ones to save RPC calls on implementations that have bulk deletes implemented
* Don't fail snapshot because deleting old index-N failed, this results in needlessly logging finalization failures and makes analysis of failures harder going forward as well as incorrect index.latest blobs
* Add Ability to List Child Containers to BlobContainer (#42653)
* Add Ability to List Child Containers to BlobContainer
* This is a prerequisite of #42189
This change fixes the name of the index_prefix sub field when the `index_prefix`
option is set on a text field that is nested under an object or a multi-field.
We don't use the full path of the parent field to set the index_prefix field name
so the field is registered under the wrong name. This doesn't break queries since
we always retrieve the prefix field through its parent field but this breaks other
APIs like _field_caps which tries to find the parent of the `index_prefix` field
in the mapping but fails.
Closes#43741
This commit allows bulk upserts to correctly read the default pipeline
for the concrete index that belongs to an alias.
Bulk upserts are modeled differently from normal index requests such that
the index request is a request inside of the update request. The update
request (outer) contains the index or alias name is not part of the (inner)
index request. This commit adds a secondary check against the update request
(outer) if the index request (inner) does not find an alias.
Currently the repsonse of the "_reload_search_analyzer" endpoint contains the
index names and nodeIds of indices were analyzers reloading was triggered. This
change add the names of the search-time analyzers that were reloaded.
Closes#43804
With Lucene rollback (#33473), we should never have more than one
primary term for each sequence number. Therefore we don't have to sort
by the primary term when reading soft-deletes.
The `RoutingService` has a confusing name, since it doesn't really have
anything to do with routing. Its responsibility is submitting reroute commands
to the master.
This commit renames this class to `BatchedRerouteService`, and extracts the
`RerouteService` interface to avoid passing `BiConsumer`s everywhere. It also
removes that `BatchedRerouteService extends AbstractLifecycleComponent` since
this service has no meaningful lifecycle. Finally, it introduces a small
wrapper class to allow for lazy initialization to deal with the dependency loop
when constructing a `Node`.
This adds a `rare_terms` aggregation. It is an aggregation designed
to identify the long-tail of keywords, e.g. terms that are "rare" or
have low doc counts.
This aggregation is designed to be more memory efficient than the
alternative, which is setting a terms aggregation to size: LONG_MAX
(or worse, ordering a terms agg by count ascending, which has
unbounded error).
This aggregation works by maintaining a map of terms that have
been seen. A counter associated with each value is incremented
when we see the term again. If the counter surpasses a predefined
threshold, the term is removed from the map and inserted into a cuckoo
filter. If a future term is found in the cuckoo filter we assume it
was previously removed from the map and is "common".
The map keys are the "rare" terms after collection is done.
This commit merges the `object-fields` feature branch. The new 'flattened
object' field type allows an entire JSON object to be indexed into a field, and
provides limited search functionality over the field's contents.
Action is a class that encapsulates meta information about an action
that allows it to be called remotely, specifically the action name and
response type. With recent refactoring, the action class can now be
constructed as a static constant, instead of needing to create a
subclass. This makes the old pattern of creating a singleton INSTANCE
both misnamed and lacking a common placement.
This commit renames Action to ActionType, thus allowing the old INSTANCE
naming pattern to be TYPE on the transport action itself. ActionType
also conveys that this class is also not the action itself, although
this change does not rename any concrete classes as those will be
removed organically as they are converted to TYPE constants.
relates #34389
Today the `DiskThresholdMonitor` limits the frequency with which it submits
reroute tasks, but it might still submit these tasks faster than the master can
process them if, for instance, each reroute takes over 60 seconds. This causes
a problem since the reroute task runs with priority `IMMEDIATE` and is always
scheduled when there is a node over the high watermark, so this can starve any
other pending tasks on the master.
This change avoids further updates from the monitor while its last task(s) are
still in progress, and it measures the time of each update from the completion
time of the reroute task rather than its start time, to allow a larger window
for other tasks to run.
It also now makes use of the `RoutingService` to submit the reroute task, in
order to batch this task with any other pending reroutes. It enhances the
`RoutingService` to notify its listeners on completion.
Fixes#40174
Relates #42559
Introduces a new `ConsistentSecureSettingsValidatorService` service that exposes
a single public method, namely `allSecureSettingsConsistent`. The method returns
`true` if the local node's secure settings (inside the keystore) are equal to the
master's, and `false` otherwise. Technically, the local node has to have exactly
the same secure settings - setting names should not be missing or in surplus -
for all `SecureSetting` instances that are flagged with the newly introduced
`Property.Consistent`. It is worth highlighting that the `allSecureSettingsConsistent`
is not a consensus view across the cluster, but rather the local node's perspective
in relation to the master.
The Action base class currently works for both Streamable and Writeable
response types. This commit intorduces StreamableResponseAction, for
which only the legacy Action implementions which provide newResponse()
will extend. This eliminates the need for overriding newResponse() with
an UnsupportedOperationException.
relates #34389
Today when an index is closed all its shards are forced flushed
but the translog files are left around. As explained in #42445
we'd like to trim the translog for closed indices in order to
consume less disk space. This commit reuses the existing
AsyncTrimTranslogTask task and reenables it for closed indices.
At the time the task is executed, we should have the guarantee
that nothing holds the translog files that are going to be removed.
It also leaves a short period of time (10 min) during which translog
files of a recently closed index are still present on disk. This could
also help in some cases where the closed index is reopened
shortly after being closed (in order to update an index setting
for example).
Relates to #42445
This change removes the ability to wrap an IndexSearcher in plugins. The IndexSearcherWrapper is replaced by an IndexReaderWrapper and allows to wrap the DirectoryReader only. This simplifies the creation of the context IndexSearcher that is used on a per request basis. This change also moves the optimization that was implemented in the security index searcher wrapper to the ContextIndexSearcher that now checks the live docs to determine how the search should be executed. If the underlying live docs is a sparse bit set the searcher will compute the intersection
betweeen the query and the live docs instead of checking the live docs on every document that match the query.
This commit adds a wildcard intervals source, similar to the prefix. It
also changes the term parameter in prefix to read prefix, to bring it
in to line with the pattern parameter in wildcard.
Closes#43198
Currently changing resources (like dictionaries, synonym files etc...) of search
time analyzers is only possible by closing an index, changing the underlying
resource (e.g. synonym files) and then re-opening the index for the change to
take effect.
This PR adds a new API endpoint that allows triggering reloading of certain
analysis resources (currently token filters) that will then pick up changes in
underlying file resources. To achieve this we introduce a new type of custom
analyzer (ReloadableCustomAnalyzer) that uses a ReuseStrategy that allows
swapping out analysis components. Custom analyzers that contain filters that are
markes as "updateable" will automatically choose this implementation. This PR
also adds this capability to `synonym` token filters for use in search time
analyzers.
Relates to #29051
When we added support for TokenFilterFactories to specialise how they were used when parsing
synonym files, PreConfiguredTokenFilters were set up to either apply themselves, or be ignored.
This behaviour is a leftover from an earlier iteration, and also has an incorrect default.
This commit makes preconfigured token filters usable in synonym file parsing by default, and brings
those filters that should not be used into line with index-specific filter factories; in indexes created
before version 7 we emit a deprecation warning, and we throw an error in indexes created after.
Fixes#38793
TransportNodesAction provides a mechanism to easily broadcast a request
to many nodes, and collect the respones into a high level response. Each
node has its own request type, with a base class of BaseNodeRequest.
This base request requires passing the nodeId to which the request will
be sent. However, that nodeId is not used anywhere. It is private to the
base class, yet serialized to each node, where the node could just as
easily find the nodeId of the node it is on locally.
This commit removes passing the nodeId through to the node request
creation, and guards its serialization so that we can remove the base
request class altogether in the future.
GatewayIndexStateIT#testRecoverBrokenIndexMetadata replies on the
flushing on shutdown. This behaviour, however, can be randomly disabled
in MockInternalEngine.
Closes#43034
Adds support for the situation where only voting-only nodes are bootstrapped. In that case, they will
still try to become elected and bring full master nodes into the cluster.
Search requests executed through the SecurityIndexSearcherWrapper throw
an UnsupportedOperationException if they match a sparse role query.
When low level cancellation is activated (which is the default since #42857),
the context index searcher creates a weight that doesn't handle #scorer.
This change fixes this bug and adds a test to ensure that we check this case.
Currently `AbstractQueryTestCase#testToQuery` checks the search context cachable
flag. This is a bit fragile due to the high randomization of query builders
performed by this general test. Also we might only rarely check the
"interesting" cases because they rarely get generated when fully randomizing the
query builder.
This change moved the general checks out ot #testToQuery and instead adds
dedicated cache tests for those query builders that exhibit something other than
the default behaviour.
Closes#43200
When a named token filter or char filter is passed as part of an Analyze API
request with no index, we currently try and build the relevant filter using no
index settings. However, this can miss cases where there is a pre-configured
filter defined in the analysis registry. One example here is the elision filter, which
has a pre-configured version built with the french elision set; when used as part
of normal analysis, this preconfigured set is used, but when used as part of the
Analyze API we end up with NPEs because it tries to instantiate the filter with
no index settings.
This commit changes the Analyze API to check for pre-configured filters in the case
that the request has no index defined, and is using a name rather than a custom
definition for a filter.
It also changes the pre-configured `word_delimiter_graph` filter and `edge_ngram`
tokenizer to make their settings consistent with the defaults used when creating
them with no settings
Closes#43002Closes#43621Closes#43582
This commit adds a prefix intervals source, allowing you to search
for intervals that contain terms starting with a given prefix. The source
can make use of the index_prefixes mapping option.
Relates to #43198
This commit modifies the RemoteInfo to clarify that a search query
must always be serialized as JSON. Additionally, it adds an assertion
to ensure that this is the case. This fixes#43406.
Additionally, this PR implements AbstractXContentTestCase for the
reindex request. This is related to #43456.
A voting-only master-eligible node is a node that can participate in master elections but will not act
as a master in the cluster. In particular, a voting-only node can help elect another master-eligible
node as master, and can serve as a tiebreaker in elections. High availability (HA) clusters require at
least three master-eligible nodes, so that if one of the three nodes is down, then the remaining two
can still elect a master amongst them-selves. This only requires one of the two remaining nodes to
have the capability to act as master, but both need to have voting powers. This means that one of
the three master-eligible nodes can be made as voting-only. If this voting-only node is a dedicated
master, a less powerful machine or a smaller heap-size can be chosen for this node. Alternatively, a
voting-only non-dedicated master node can play the role of the third master-eligible node, which
allows running an HA cluster with only two dedicated master nodes.
Closes#14340
Co-authored-by: David Turner <david.turner@elastic.co>
Today the `ClusterFormationFailureHelper` says `... discovery will continue
using ... from last-known cluster state` and lists all the nodes in the
last-known cluster state. In fact we ignore the master-ineligible nodes in the
last-known cluster state during discovery. This commit fixes this by listing
only the master-eligible nodes from the cluster state in this message.
If the master removes the relocating shard, but recovery isn't aware of
it, then we can enter an invalid state where ReplicationTracker does not
include the local shard.
Today we assert that a warning is logged after no more than
`discovery.cluster_formation_warning_timeout`, but the deterministic scheduler
adds a small amount of extra randomness to the timing of future events, causing
the following build to fail:
./gradlew :server:test --tests "org.elasticsearch.cluster.coordination.CoordinatorTests.testLogsWarningPeriodicallyIfClusterNotFormed" -Dtests.seed=DF35C28D4FA9EE2D
This commit adds an allowance for this extra time.
After two recent changes (#38824 and #33888), the _cat/indices API
no longer report information for active recovering indices and
non-replicated closed indices. It also misreport replicated closed
indices that are potentially not authorized for the user.
This commit changes how the cat action works by first using the
Get Settings API in order to resolve authorized indices. It then uses
the Cluster State, Cluster Health and Indices Stats APIs to retrieve
information about the indices.
Closes#39933
This refactors AggregatorTestCase to allow testing mock scripts.
The main change is to QueryShardContext. This was previously mocked,
but to get the ScriptService you have to invoke a final method
which can't be mocked.
Instead, we just create a mostly-empty QueryShardContext and populate
the fields that are needed for testing. It also introduces a few
new helper methods that can be overridden to change the default
behavior a bit.
Most tests should be able to override getMockScriptService() to supply
a ScriptService to the context, which is later used by the aggs.
More complicated tests can override queryShardContextMock() as before.
Adds a test to MaxAggregatorTests to test out the new functionality.
At the end of a peer recovery the primary wants to mark the replica as in-sync. For that the
persisted local checkpoint of the replica needs to have caught up with the global checkpoint on the
primary. If translog durability is set to ASYNC, this means that information about the persisted local
checkpoint can lag on the primary and might need to be explicitly fetched through a global
checkpoint sync action. Unfortunately, that action will only be triggered after 30 seconds, and, even
worse, will only run based on what the in-sync shard copies say (see
IndexShard.maybeSyncGlobalCheckpoint). As the replica has not been marked as in-sync yet, it is
not taken into consideration, and the primary might have its global checkpoint equal to the max seq
no, so it thinks nothing needs to be done.
Closes#43486
Long and Double ValuesSource set the current document on the script
before executing, but Bytes was missing this method call. That meant
it was possible to generate an OutOfBoundsException when using
a "value" script (field + script) on keyword or other bytes
fields.
This adds in the method call, and a few yaml tests to verify correct
behavior.
This commit performs the proper restore of network disruption.
Previously disruptionScheme.stopDisrupting() was called that does not
ensure that connectivity between cluster nodes is restored. The test
was checking that the cluster has green status, but it was not checking
that connectivity between nodes is restored.
Here we switch to internalCluster().clearDisruptionScheme(true) which
performs both checks before returning.
Similar to #42798Closes#42051
(cherry picked from commit cd1ed662f847a0055ede7dfbd325e214ec4d1490)
This commit replaces usages of Streamable with Writeable for the
AcknowledgedResponse and its subclasses, plus associated actions.
Note that where possible response fields were made final and default
constructors were removed.
This is a large PR, but the change is mostly mechanical.
Relates to #34389
Backport of #43414
Unsupported HTTP methods are detected during requests dispatching
which generates an appropriate error response. Sadly, this error is
never sent back to the client because the method of the original
request is checked again in DefaultRestChannel which throws again
an IllegalArgumentException that is never handled.
This pull request changes the DefaultRestChannel so that the latest
exception is swallowed, allowing the error message to be sent back
to the client. It also eagerly adds the objects to close to the toClose
list so that resources are more likely to be released if something
goes wrong during the response creation and sending.
We currently assert that adding deletion tombstones to Lucene must always succeed if it's not a
tragic exception, and the same should also hold true for NOOP tombstones. We rely on this
assumption, as without this, we have the risk of creating gaps in the history, which will break
operation-based recoveries and CCR.
Armin Braun
David Turner
Ryan Ernst
Christoph Büscher
Tanguy Leroux
Nhat Nguyen
Nikita Glashenko
Przemyslaw Gomulka
Yannick Welsch
Mark Vieira
Andrei Stefan
Christos Soulios
Igor Motov
Nick Knize
Ryan Ernst
Zachary Tong
David Roberts
Martijn van Groningen
Henning Andersen
Mark Tozzi
Jim Ferenczi
Alan Woodward
Adrien Grand
paulward24
Jake Landis
Yogesh Gaikwad
Zachary Tong
Julie Tibshirani
Albert Zaharovits
weizijun
Alan Woodward
Tim Brooks
David Kyle
Przemysław Witek
Andrey Ershov