This changes Elasticsearch to automatically downgrade `text` and
`keyword` fields into appropriate `string` fields when changing the
mapping of indexes imported from 2.x. This allows users to use the
modern, documented syntax against 2.x indexes. It also makes it clear
that reindexing in order to recreate the index in 5.0 is required for
any long lived indexes. This change is useful for the times when you
can't (cluster is just starting, not stable enough for reindex) or
shouldn't (index will only live 90 days or something).
Now that #20081 is merged we can check that cacheKey is consistent across equal search requests, something that wasn't true before due to ordering of map keys when using index boost.
Relates to #19986
Netty3/4 TcpTransport implementations are creating thread factories with a "http_server" thread prefix whereas it should start with "transport_server" and let the "http_server" prefix for the HttpServerTransport implementations.
This test is periodically failing. As I suspect that the GCDisruption scheme is somehow making the wrong node block on
its cluster state update thread, I've added some more logging and a thread dump once the given assertion triggers
again.
today we fsync in a blocking fashion where all threads block while another
syncs. Yet, we can improve this and make use of the async infrastrucutre added
for `wait_for_refresh` and make fsyncing single threaded while all other threads
can continue indexing. The syncing thread then notifies a listener once the requests
location is synced. This also allows to send docs to replicas before its actually fsynced
allowing for cocurrent replica processing.
This patch has a significant impact on performance on slower discs. An initial single node benchmark
shows that on very fast SSDs there is no noticable impact but on slow spinning disk this
patch shows a ~32% performance improvement.
```
NVME SSD:
336ec0ac9a (master):
Total docs/sec: 47200.9
Total docs/sec: 46440.4
23543a97e3e7f72a31e26b50e00931919784426c (async wait for translog):
Total docs/sec: 47461.6
Total docs/sec: 46188.3
-------------------------------------------------------------------
Spinning disk:
336ec0ac9a (master):
Total docs/sec: 22733.0
Total docs/sec: 24129.8
23543a97e3e7f72a31e26b50e00931919784426c (async wait for translog):
Total docs/sec: 32724.1
Total docs/sec: 32845.4
--------------------------------------------------------------------
```
Currently, after at least one pipeline is registered it is getting rebuilt on every single cluster state update, even when this update is not related to ingest metadata. This change adds a check that the ingest metadata changed before trying to rebuild all pipelines.
Adds an explicit recoverySource field to ShardRouting that characterizes the type of recovery to perform:
- fresh empty shard copy
- existing local shard copy
- recover from peer (primary)
- recover from snapshot
- recover from other local shards on same node (shrink index action)
* Fix NPE during search with source filtering if the source is disabled.
Instead of throwing an NPE, a search response with source filtering will not contain the source if it is disabled in the mapping.
Closes#7758
* Created unit tests for FetchSourceSubPhase. Tests similar to SourceFetchingIT.
Removed SourceFetchingIT#testSourceDisabled (now covered via unit test FetchSourceSubPhaseTests#testSourceDisabled).
* Updated FetchSouceSubPhase unit tests per comments.
Renamed main unit test method.
Use assertEquals and assertNull instead of assertThat (less code).
Fixes an issue where the value for the `script.engine.<lang>.inline`
settings would be _set_ properly, but would not accurately be reflected
in the `include_defaults` output. Adds a test to ensure the default raw
setting is now correct.
Resolves#20159
* Make sure indexBoost is serialized in a consistent order
* remove hasIndexBoost by using indexBoost size
* Make sure phrase suggester's collateParams is serialized in consistent
order
* Make StreamOutput writer to serialize maps in consistent order
The class Setting holds a static reference to a deprecation logger
instance. When the class initializer for Setting runs, it starts
triggering log4j initialization. There is a chain of initializations
from InternalSettingsPreparer to Environment to Setting that triggers
this initialization before log4j configuration has occurred. This commit
modifies this initialization so that initialization is not done eagerly.
Relates #20170
This makes GET operations more consistent with `_search` operations which expect
`(stored_)fields` to work on stored fields and source filtering to work on the
`_source` field. This is now possible thanks to the fact that GET operations
do not read from the translog anymore (#20102) and also allows to get rid of
`FieldMapper#isGenerated`.
The `_termvectors` API (and thus more_like_this too) was relying on the fact
that GET operations would extract fields from either stored fields or the source
so the logic to do this that used to exist in `ShardGetService` has been moved
to `TermVectorsService`. It would be nice that term vectors do not rely on this,
but this does not seem to be a low hanging fruit.
Non-stale shard copies are currently tracked using their allocation ids in the cluster state. When a node leaves the cluster, shard copies of that node are marked as stale by removing their allocation ids from the active set in the cluster. For full cluster restarts, this can have the unwanted effect that only the last node holding a copy of the shard will be seen as non-stale. The other shard copies are not really stale though as long as no writes have happened on this shard copy. Shard copies should thus only be marked as stale (by the master in the cluster state) if other active shards have received writes.
This commit implements the above logic and also renames the persistent structure used to track non-stale shard copies from "active_allocations" to "in_sync_allocations" as we now also support tracking non-stale shard copies that have no active routing entries in the cluster state.
We need to get the string representation of numbers in order to include in
`_all`. However this has a cost and disabling `_all` is rather common so we
should look into skipping it.
The network types in use on a cluster can be useful information to have,
so this commit adds aggregate metrics for the network types in use in a
cluster to the cluster stats.
Relates #20144
This moves the Writer interface from StreamOutput into Writeable, as a peer of its inner Reader interface. This should hopefully help to avoid random functional interfaces being created for the same purpose.
It also makes use of the moved class by updating writeMapOfLists and readMapOfLists.
Previous to this change the nesting of aggregation profiling results
would be incorrect when the request contains a terms aggregation and the
collect mode is (implicitly or explicitly) set to `breadth_first`. This
was because the aggregation profiling has to make the assumption that
the `preCollection()` method of children aggregations is always called in
the `preCollection()` method of their parent aggregation. When the collect
mode is `breadth_first` the `preCollection` of the children aggregations
was delayed until the documents were replayed.
This change moves the `preCollection()` of deferred aggregations to run
during the `preCollection()` of the parent aggregation. This should have
no adverse impact on the breadth_first mode as there is no allocation of
memory in any of the aggregations.
We also apply the same logic to the diversified sampler aggregation as
we did to the terms aggregation to move the `preCollection()` of the
child aggregations method to be called during the `preCollection()` of
the parent aggregation.
This commit also includes a fix so that the `ProfilingLeafBucketCollector`
propagates the scorer to its delegate so the diversified sampler agg works
when profiling is enabled.
If they are specified by a mapping update, these properties are currently
ignored. This commit also fixes the handling of `dynamic_templates` so that it
is possible to remove templates (and so that it works more similarly to all
other mapping properties).
Closes#20111
This is a house cleaning commit that refactors GeoPointFieldMapperLegacy to LegacyGeoPointFieldMapper for consistency with Legacy Numerics and IP field mappers.
IndexedGeoBoundingBoxQuery and InMemoryGeoBoundingBoxQuery are also deprecated and refactored as Legacy classes.
This change adds a special field named _none_ that allows to disable the retrieval of the stored fields in a search request or in a TopHitsAggregation.
To completely disable stored fields retrieval (including disabling metadata fields retrieval such as _id or _type) use _none_ like this:
````
POST _search
{
"stored_fields": "_none_"
}
````
Today we do a lot of accounting inside the engine to maintain locations
of documents inside the transaction log. This is only needed to ensure
we can return the documents source from the engine if it hasn't been refreshed.
Aside of the added complexity to be able to read from the currently writing translog,
maintainance of pointers into the translog this also caused inconsistencies like different values
of the `_ttl` field if it was read from the tlog or not. TermVectors are totally different if
the document is fetched from the tranlog since copy fields are ignored etc.
This chance will simply call `refresh` if the documents latest version is not in the index. This
streamlines the semantics of the `_get` API and allows for more optimizations inside the engine
and on the transaction log. Note: `_refresh` is only called iff the requested document is not refreshed
yet but has recently been updated or added.
#Relates to #19787
I was writing tests for RAM usage estimation of LiveVersionMap and found a
couple issues:
- The BytesRef objects used as uids were oversized since they were created
via `new BytesRef(CharSequence)` which creates a `byte[]` whose size is 3x
the length of the provided char sequence. Given that our uids are most of
times ASCII sequences, this is a waste of memory.
- `VersionValue` was using `translogLocation.size` instead of
`translogLocation.ramBytesUsed()` for RAM estimation, which is completely
unrelated to the memory footprint of the `Translog.Location` object.
In particular, the latter issue could cause RAM usage estimation to be
significantly overestimated, especially on large documents.
I also added tests for ram accounting.
Deprecates the optimize_bbox parameter on geodistance queries. This has no longer been needed since version 2.2 because lucene geo distance queries (postings and LatLonPoint) already optimize by bounding box.
Catching and suppressing AlreadyClosedException from Lucene is dangerous because it can mean there is a bug in ES since ES should normally guard against invoking Lucene classes after they were closed.
I reviewed the cases where we catch AlreadyClosedException from Lucene and removed the ones that I believe are not needed, or improved comments explaining why ACE is OK in that case.
I think (@s1monw can you confirm?) that holding the engine's readLock means IW will not be closed, except if disaster strikes (failEngine) at which point I think it's fine to see the original ACE in the logs?
Closes#19861
When a SearchContext is closed it's reader / searcher reference is closed too.
If this happens while a search is accessing it's reader reference it can lead
to an unexpected `AlreadyClosedException` or worst case, an already closed MMapDirectory
is access causing a `SIGSEV` like in #20008 (even though the window for this is very small).
SearchContext can be closed concurrently if:
* an index is deleted / removed from the node
* a search context is idle for too long and is cleaned by the reaper
* an explicit freeContext message is received
This change adds reference counting to the SearchContext base class and it's used
inside SearchService each time the context is accessed.
Closes#20008
This includes:
- All regular numeric types such as int, long, scaled-float, double, etc
- IP addresses
- Dates
- Geopoints and Geoshapes
Relates to #19784
Adds ignoreUnavailable to the snapshot status API to be consistent
with the get snapshots API which has a similar parameter. If
ignoreUnavailable is set to true, then the snapshot status request
will ignore any snapshots that were not found in the repository,
instead of throwing a SnapshotMissingException.
Closes#18522
StartupException overrides Throwable#printStackTrace(PrintStream) but
not Throwable#printStackTrace(PrintWriter). The former override is used
when the JVM terminates with an exception, but the latter override can
be used in some logging frameworks when rendering an exception (e.g.,
log4j). This commit adds an override for the latter, with the behavior
for the two overrides being the same.
This commit renames StartupError to StartupException. This rename is due
to the fact that this class inherits from Exception not Error in the
Throwable class hierarchy.
This commit removes the minimum master nodes bootstrap check. The
motivation for this check was to raise awareness of the minimum master
nodes setting but this check gives a false sense of security because
it's too easy to set the setting to one when first standing up a cluster
and never update it when adding master-eligible nodes, or have it out of
sync on various nodes and still pass this check. Since this check does
not have the security that other bootstrap checks provide, it should be
removed in favor of a stronger guarantee in the future. We do log a
warning if an election occurs with minimum master nodes less than a
quorum of master-eligible nodes that participated in an election and
this is the best that we can do right now.
Relates #20082
Some time ago, AllocationService.reroute was changed to not only return updates to the routing table but also to the metadata (which contain primary terms and in-sync allocation ids). A lot of test code still only updates the routing table though, which is fixed by this PR.
How index templates match is currently controlled by the
IndexTemplateFilter interface. It is pluggable, to add additional
filter implementations to the default glob matcher.
This change removes the IndexTemplateFilter interface completely. This
is a very esoteric extension point, and not worth maintaining. Instead,
any improvements should be made to all of our glob matching.
This change moves custom ShardsAllocators from registration on
ClusterModule, to implementing getShardsAllocators() in ClusterPlugin.
It also removes the legacy alias "even_shard" for the balanced allocator
which was removed in 2.0.
Currently, when you set `include_in_all` on an object, it will propagate the
information to its sub mappers immediately. This is annoying because this is
done using a different mechanism than regular mapping updates.
This PR changes object fields to propagate the information at document parsing
time rather than when `include_an_all` is updated. While moving this cost to
document parsing time rather than mapping update time is probably a bad
trade-off, I am confident that this cost is very low and think this new way
makes things simpler.
This change converts AllocationDecider registration from push based on
ClusterModule to implementing with a new ClusterPlugin interface.
AllocationDecider instances are allowed to use only Settings and
ClusterSettings.
Previously this was possible, which was problematic when issuing a
request like `DELETE /-myindex`, which was interpretted as "delete
everything except for myindex".
Resolves#19800
Now document created flag is set in the index operation instead of
being returned from engine operation. This change makes the engine
index and delete operations have the same signature.
Adds a class that records changes made to RoutingAllocation, so that at the end of the allocation round other values can be more easily derived based on these changes. Most notably, it:
- replaces the explicit boolean flag that is passed around everywhere to denote changes to the routing table. The boolean flag is automatically updated now when changes actually occur, preventing issues where it got out of sync with actual changes to the routing table.
- records actual changes made to RoutingNodes so that primary term and in-sync allocation ids, which are part of index metadata, can be efficiently updated just by looking at the shards that were actually changed.
Currently both `PUT` and `POST` can be used to create indices. This commit
removes support for `POST index_name` so that we can use it to index documents
with auto-generated ids once types are removed.
Relates #15613
In addition to be an allocation decider, DiskThresholdDecider also
monitors the used disk in order to trigger a reroute when the thresholds
are crossed. This change splits out the settings for disk thresholds
into DiskThresholdSettings, and moves the monitoring to a new
DiskThresholdMonitor. DiskThresholdDecider is then in line with other
allocation deciders, needing only Settings and ClusterSettings for
construction, which will allow deguicing allocation deciders.
`LobObtainFailedException` should be reserved for on-disk locks that
Lucene attempts (like `write.lock`). This switches our in-memory
semaphore locks for shards to use a different exception. Additionally,
ShardLockObtainFailedException no longer subclasses IOException, since
no IO is being done is this case.
Resolves#19978
Currently plugins can not inspect or upgrade custom
meta data on startup. This commit allow plugins
to check and/or upgrade global custom meta data on startup.
Plugins can stop a node if any custom meta data is not supported.
The big change here is cleaning up the `TaskListResponse` so it doesn't
have a breaky `toString` implementation. That was causing the reindex
tests to break.
Also removed `NetworkModule#registerTaskStatus` which is part of the
Plugin API. Use `Plugin#getNamedWriteables` instead.
Primary shard allocation observes limits in forcing allocation
Previously, during primary shards allocation of shards
with prior allocation IDs, if all nodes returned a
NO decision for allocation (e.g. the settings blocked
allocation on that node), we would chose one of those
nodes and force the primary shard to be allocated to it.
However, this meant that primary shard allocation
would not adhere to the decision of the MaxRetryAllocationDecider,
which would lead to attempting to allocate a shard
which has failed N number of times already (presumably
due to some configuration issue).
This commit solves this issue by introducing the
notion of force allocating a primary shard to a node
and each decider implementation must implement whether
this is allowed or not. In the case of MaxRetryAllocationDecider,
it just forwards the request to canAllocate.
Closes#19446
Parsing a search request is currently split up among a number of
classes, using multiple public static methods, which take multiple
regstries of elements that may appear in the search request like query
parsers and aggregations. This change begins consolidating all this code
by collapsing the registries normally used for parsing search requests
into a single SearchRequestParsers class. It is also made available to
plugin services to enable templating of search requests. Eventually all
of the actual parsing logic should move to the class, and the registries
should be hidden, but for now they are at least co-located to reduce the
number of objects that must be passed around.
Squashes all the subpackages of `org.elasticsearch.rest.action` down to
the following:
* `o.e.rest.action.admin` - Administrative actions
* `o.e.rest.action.cat` - Actions that make tables for `grep`ing
* `o.e.rest.action.document` - Actions that act on documents
* `o.e.rest.action.ingest` - Actions that act on ingest pipelines
* `o.e.rest.action.search` - Actions that search
I'm tempted to merge `search` into `document` but the `document`
package feels fairly complete as is and `Suggest` isn't actually always
about documents either....
I'm also tempted to merge `ingest` into `admin.cluster` because the
latter contains the actions for dealing with stored scripts.
I've moved the `o.e.rest.action.support` into `o.e.rest.action`.
I've also added `package-info.java`s to all packges in `o.e.rest`. I
figure if the package is too small to deserve a `package-info.java` file
then it is too small to deserve to be a package....
Also fixes checkstyle in all moved classes.
* Enable BoostingQuery with FVH highlighter
* apply boost with negativeBoost
* flatten boosting query with its own boost and update boost query to a single layer
* Assign scroll keepAlive when deserializing
The scroll time value was never assign when deserializing from the transport layer, meaning that it would always be null when received from another node, although the originating search request might have it set to some value.
* add tests for SearchRequest serialization and fail fast with illegal arguments
To ease testing, also introduced equals, hashcode and toString methods in SearchRequest and Scroll.
The serialization test brought up a few wrong assumptions about non null instance members, for which some null checks were needed to avoid NPEs when serializing.
* make Scroll implement Writeable rather than Streamable
* [TEST] add serialization test for ShardSearchTransportRequest
This also covers ShardSearchLocalRequest implicitly as most of the serialization code is in it.
that have analyzer aliases in their analysis settings will still work, but
any attempts to create an alias for analyzers in newly created indices
will result in an IllegalArgumentException.
As a result, the setting `index.analysis.analyzer.{analyzerName}.alias` is
no longer supported.
Closes#18244
The term persisted task was used to indicate that a task should store its results upon its completion. We would like to use this term to indicate that a task can survive restart of nodes instead. This commit removes usages of the term "persist" when it means store results.
This commit fixes the number of max local storage nodes setting used in
the discovery disruption tests. In some cases (randomly but rarely), the
acked indexing test can run with five nodes instead of three, breaching
the max local storage nodes configuration.
As the most complicated `FetchSubPhase` highlighting gets its own package
(`o.e.seach.fetch.subphase.highlight`. No other `FetchSubPhase`s get their
own package. Instead they all reside together in `o.e.search.fetch.subphase`.
Add package descriptions to `o.e.search.fetch` and subpackages.
This commit adds a function to shard-level query result to determine whether
there are any hits that needs fetching. Currently, a shard-level query result
can have hits when there are search hits and/or completion suggestion hits.
The newly added function encapsulates the checks to determine if a shard-level
query result has any fetchable hits, which is used in optimizing for sorting
documents and releasing search request contexts.
If a primary fails, an active replica is promoted to primary. Once we do the promotion, however, we are sure that the active replica is not relocating anymore. The reason is that when the primary fails, we first remove/cancel all initializing replicas (also if they are relocation targets). This is the only safe thing to do anyhow, because promoting relocating replica to primary would also mean that the replica recovery of the replica relocation target is suddenly promoted to primary relocation, which the recovery code treats in a different way.
This commit defaults the max local storage nodes to one. The motivation
for this change is that a default value greather than one is dangerous
as users sometimes end up unknowingly starting a second node and start
thinking that they have encountered data loss.
Relates #19964
ContextIndexSearcher#explain ignores the dfs data to create the normalized weight.
This change fixes this discrepancy by using the dfs data to create the normalized weight when needed.
This commit separates the description of the links in the network that are to be disrupted from the failure that is to be applied to the links (disconnect/unresponsive/delay). Previously we had subclasses for the various kind of network disruption schemes combining on one hand failure mode (disconnect/unresponsive/delay) as well as the network links to cut (two partitions / bridge partitioning) into a single class.
Reducing the ping timeouts on a test that does not simulate network failures can cause node disconnects within the test on a slow CI machine.
The test testSearchWithRelocationAndSlowClusterStateProcessing does not expect such disconnects, leading to shard relocation in the test to abort prematurely.
Today in the uncaught exception handler, we attempt to halt the virtual
machine on fatal errors. Yet, halting the virtual machine requires
privileges which might not be granted to the caller when the exception
is thrown for example from a scripting engine. This means that if an
OutOfMemoryError or another fatal error is hit inside a script, the
virtual machine will not exit because the halt call will be denied for
securiry privileges. In this commit, we mark this halt call as trusted
so that the virtual machine can be halted if a fatal error is
encountered in a script.
Relates #19923
I also reduced the visibility of a couple classes and renamed/consolidated some
test classes for consistency, eg. removing the `Simple` prefix or using the
`<Type>FieldMapperTests` convention for testing field mappers.
testUnknownObjectException used to generate malformed json objects in some cases, due to the existence of arrays as it was not closing the injected object correctly. That is why the test was catching JsonParseException among the exception that are expected to be thrown. That is fixed by tracking where the new object is placed and placing its end object marker to the right level rather than always at the end.
Also introduced a mechanism to explicitly declare objects that won't cause any exception when they get additional objects injected, so that there is no need to override the method anymore as that caused copy pasting of the whole test method. This also makes sure that changes are reflected in tests, as those inner objects are not skipped but we actually check that what is declared is true (no exceptions get thrown when an additional object is added within them.
This change adds support for treating dots in field names found in
mappings as path separators, like was previously done for dynamic
mappings and document parsing.
closes#19443
Currently, when attempting to delete a snapshot, we check
if a snapshot is in progress before proceeding with the
delete. However, we do not check if a restore is taking
place before deleting. This can lead to concurrency issues
where a restore is in progress but the snapshotted files
for the restore are being deleted underneath.
This commit first checks if a restore is in progress and
if so, it prevents the deletion of a snapshot with an
exception.
Note that this is not a complete solution because it is
still possible that a restore of the same snapshot is
started after the deletion commenced but before the
deletion finished. But there is a much smaller window
for this to occur and this commit is a quick way to
check for the common case.
When compiling many dynamically changing scripts, parameterized
scripts (<https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-scripting-using.html#prefer-params>)
should be preferred. This enforces a limit to the number of scripts that
can be compiled within a minute. A new dynamic setting is added -
`script.max_compilations_per_minute`, which defaults to 15.
If more dynamic scripts are sent, a user will get the following
exception:
```json
{
"error" : {
"root_cause" : [
{
"type" : "circuit_breaking_exception",
"reason" : "[script] Too many dynamic script compilations within one minute, max: [15/min]; please use on-disk, indexed, or scripts with parameters instead",
"bytes_wanted" : 0,
"bytes_limit" : 0
}
],
"type" : "search_phase_execution_exception",
"reason" : "all shards failed",
"phase" : "query",
"grouped" : true,
"failed_shards" : [
{
"shard" : 0,
"index" : "i",
"node" : "a5V1eXcZRYiIk8lecjZ4Jw",
"reason" : {
"type" : "general_script_exception",
"reason" : "Failed to compile inline script [\"aaaaaaaaaaaaaaaa\"] using lang [painless]",
"caused_by" : {
"type" : "circuit_breaking_exception",
"reason" : "[script] Too many dynamic script compilations within one minute, max: [15/min]; please use on-disk, indexed, or scripts with parameters instead",
"bytes_wanted" : 0,
"bytes_limit" : 0
}
}
}
],
"caused_by" : {
"type" : "general_script_exception",
"reason" : "Failed to compile inline script [\"aaaaaaaaaaaaaaaa\"] using lang [painless]",
"caused_by" : {
"type" : "circuit_breaking_exception",
"reason" : "[script] Too many dynamic script compilations within one minute, max: [15/min]; please use on-disk, indexed, or scripts with parameters instead",
"bytes_wanted" : 0,
"bytes_limit" : 0
}
}
},
"status" : 500
}
```
This also fixes a bug in `ScriptService` where requests being executed
concurrently on a single node could cause a script to be compiled
multiple times (many in the case of a powerful node with many shards)
due to no synchronization between checking the cache and compiling the
script. There is now synchronization so that a script being compiled
will only be compiled once regardless of the number of concurrent
searches on a node.
Relates to #19396
Slims the public interface of RoutingNodes down to 4 methods to update routing entries:
- initializeShard() -> initializes an unassigned shard
- startShard() -> starts an initializing shard / completes relocation of a shard
- relocateShard() -> starts relocation of a started shard
- failShard() -> fails/cancels an assigned shard
In the spirit of PR #19743, where deassociateDeadNodes was moved to its own public method to be only called when nodes have actually left the cluster and not on every reroute step, this commit also removes electPrimariesAndUnassignedDanglingReplicas from AllocationService and folds it into the shard failure logic. This means that an active replica is promoted to primary in the same method where the primary was failed. Previously we would scan in each reroute iteration for active replicas to be promoted to primary.
If a `keyword` field is both indexed and doc-valued, then we will convert the
input string to utf8 bytes twice: once for indexing/storing, and once for doc
values. This commit changes `keyword` fields to compute the utf8 representation
up-front and then feed both the inverted index and doc values with it.
Rather than adding version-based bw compat logic, I broke the `keyword` field
(they are now indexed/stored as a binary field rather than string), which is
fine since we are still on alpha releases for 5.0.
Previously, the engine would catch an out of memory error and would try
to handle the error (it would try to fail the engine, and then it would
swallow the out of memory error). Catching the out of memory errors was
removed in 3343ceeae4 so this code path is
not effectively dead. This commit removes this dead code from the
engine.
Relates #19881
The payload option was introduced with the new completion
suggester implementation in v5, as a stop gap solution
to return additional metadata with suggestions.
Now we can return associated documents with suggestions
(#19536) through fetch phase using stored field (_source).
The additional fetch phase ensures that we only fetch
the _source for the global top-N suggestions instead of
fetching _source of top results for each shard.
The recent changes to the Histogram Aggregator introduced a bug where
an exception would not be thrown if the maxBound of the extended bounds
is less that the minBound. This change fixes that bug.
Closes#19833
PR #19715 made AllocationService less lenient, requiring ShardRouting instances that are passed to its applyStartedShards and
applyFailedShards methods to exist in the routing table. As primary shard failures also fail initializing replica shards,
concurrent replica shard failures that are treated in the same cluster state update might not reference existing replica entries
in the routing table anymore. To solve this, PR #19715 ordered the failures by first handling replica before
primary failures. There are other failures that influence more than one routing entry, however. When we have a failed shard entry
for both a relocation source and target, then, depending on the order, either one or the other might point to an out-dated shard
entry. As finding a good order is more difficult than applying the failures, this commit re-adds parts of the ShardRouting
re-resolve logic so that the applyFailedShards method can properly treat shard failure batches.
GeoDistance is implemented using a crazy enum that causes issues with the scripting modules. This commit moves all distance calculations to arcDistance and planeDistance static methods in GeoUtils. It also removes unnecessary distance helper methods from ScriptDocValues.GeoPoints.
This commit enables completion suggester to return documents
associated with suggestions. Now the document source is returned
with every suggestion, which respects source filtering options.
In case of suggest queries spanning more than one shard, the
suggest is executed in two phases, where the last phase fetches
the relevant documents from shards, implying executing suggest
requests against a single shard is more performant due to the
document fetch overhead when the suggest spans multiple shards.
The method requires pairs of fieldnames and property arguments and will fail if
the varargs input is an uneven number. We should check this and fail with an
appropriate IllegalArgumentException instead.
```
Elasticsearch doesn't have any automatic mechanism to share these
components between indexes. If any component is heavy enough to
warrant such sharing then it is the Pugin's responsibility to do
it in their {@link AnalysisProvider} implementation. We recommend
against doing this unless absolutely necessary because it can be
difficult to get the caching right given things like behavior
changes across versions.
```
Closes#19814
This commit cleans up indices in a snapshot repository when all
snapshots containing the index are all deleted. Previously, empty
indices folders would lay around after all snapshots containing
them were deleted.
Plugins provide NamedWriteables that are added to the
NamedWriteableRegistry. Those are added on Nodes already, the same mechanism is
added to the setup for TransportClient.
Nik Everett
javanna
Tanguy Leroux
Yannick Welsch
Martijn van Groningen
Jun Ohtani
Simon Willnauer
Simon Willnauer
Igor Motov
qwerty4030
Ali Beyad
Lee Hinman
Xiang Chen
Jason Tedor
Adrien Grand
Chris Earle
Colin Goodheart-Smithe
Mike McCandless
Nicholas Knize
Jim Ferenczi
Michael McCandless
Masaru Hasegawa
Jack Conradson
Thiago Souza
Ryan Ernst
Areek Zillur
Luca Cavanna
Christoph Büscher
David Pilato
Clinton Gormley
Britta Weber
Britta Weber