Currently for field sorting we always use a custom sort field and a custom comparator source.
Though for numeric fields this custom sort field could be replaced with a standard SortedNumericSortField unless
the field is nested especially since we removed the FieldData for numerics.
We can also use a SortedSetSortField for string sort based on doc_values when the field is not nested.
This change replaces IndexFieldData#comparatorSource with IndexFieldData#sortField that returns a Sorted{Set,Numeric}SortField when possible or a custom
sort field when the field sort spec is not handled by the SortedSortFields.
Today we prevent nodes from joining when indices exists that are too old.
Yet, the opposite can happen too since lucene / elasticsearch is not forward
compatible when it gets to indices we won't let nodes join the cluster once
there are indices in the clusterstate that are newer than the nodes version.
This prevents forward compatibility issues which we never test against. Yet,
this will not prevent rolling restarts or anything like this since indices
are always created with the minimum node version in the cluster such that an index
can only get the version of the higher nodes once all nodes are upgraded to this version.
TopDocs et.al. got additional parameters to incrementally reduce
top docs. In order to add incremental reduction `CollapseTopFieldDocs`
needs to have the same properties.
Remote nodes in cross-cluster search can be marked as eligible for
acting a gateway node via a remote node attribute setting. For example,
if search.remote.node.attr is set to "gateway", only nodes that have
node.attr.gateway set to "true" can be connected to for cross-cluster
search. Unfortunately, there is a bug in the handling of these
attributes due to the use of a dangerous method
Boolean#getBoolean(String) which obtains the system property with
specified name as a boolean. We are not looking at system properties
here, but node settings. This commit fixes this situation, and adds a
test. A follow-up will ban the use of Boolean#getBoolean.
Relates #23863
This commit changes the ClusterStatsNodes.NetworkTypes so that is does
not print out empty field names when no Transport or HTTP type is defined:
```
{
"network_types": {
...
"http_types": {
"": 2
}
}
}
```
is now rendered as:
```
{
"network_types": {
...
"http_types": {
}
}
}
```
SearchPhaseController is tighly coupled to AtomicArray which makes
non-dense representations of results very difficult. This commit removes
the coupling and cuts over to Collection rather than List to ensure no
order or random access lookup is implied.
This change introduces a new API called `_field_caps` that allows to retrieve the capabilities of specific fields.
Example:
````
GET t,s,v,w/_field_caps?fields=field1,field2
````
... returns:
````
{
"fields": {
"field1": {
"string": {
"searchable": true,
"aggregatable": true
}
},
"field2": {
"keyword": {
"searchable": false,
"aggregatable": true,
"non_searchable_indices": ["t"]
"indices": ["t", "s"]
},
"long": {
"searchable": true,
"aggregatable": false,
"non_aggregatable_indices": ["v"]
"indices": ["v", "w"]
}
}
}
}
````
In this example `field1` have the same type `text` across the requested indices `t`, `s`, `v`, `w`.
Conversely `field2` is defined with two conflicting types `keyword` and `long`.
Note that `_field_caps` does not treat this case as an error but rather return the list of unique types seen for this field.
Today we have no way to mark an execution as internal. This commit adds
a simple thread context header that allows executing code in a system context.
This allows intercepting code can make better decisions down the road when
it gets to authentication.
This commit changes the listener passed to sendMessage from a Runnable
to a ActionListener.
This change also removes IOException from the sendMessage signature.
That signature is misleading as it allows implementers to assume an
exception will be thrown in case of failure. That does not happen due
to Netty's async nature.
When executing an update request, the request timeout is not transferred
to the index/delete request executed on behalf of the update
request. This leads to update requests not timing out when they should
(e.g., if not all shards are available when the request specifies
wait_for_shards=all with a small timeout). This commit causes the
index/delete requests to honor the update request timeout.
Relates #23825
Today we have the shard target and the target request ID available in SearchPhaseResults.
Yet, the coordinating node maintains a shard index to reference the request, response tuples
internally which is also used in many other classes to reference back from fetch results to
query results etc. Today this shard index is implicitly passed via the index in AtomicArray
which causes an undesirable dependency on this interface.
This commit moves the shard index into the SearchPhaseResult and removes some dependencies
on AtomicArray. Further removals will follow in the future. The most important refactoring here
is the removal of AtomicArray.Entry which used to be created for every element in the atomic array
to maintain the shard index during result processing. This caused an unnecessary indirection, dependency
and potentially thousands of unnecessary objects in every search phase.
I think this query should not use the hashCode provided BytesRef#hashCode().
It uses StringHelper#GOOD_FAST_HASH_SEED which is initialized in a static
block to System.currentTimeMillis().
Running this query on different replicas may return inconsistent results.
Using a fixed seed should guaranty that the docs are sliced consistently
accross replicas.
Fixes#23096
This moves `updateReplicaRequest` to `createPrimaryResponse` and separates the
translog updating to be a separate function so that the function purpose is more
easily understood (and testable).
It also separates the logic for `MappingUpdatePerformer` into two functions,
`updateMappingsIfNeeded` and `verifyMappings` so they don't do too much in a
single function. This allows finer-grained error testing for when a mapping
fails to parse or be applied.
Finally, it separates parsing and version validation for
`executeIndexRequestOnReplica` into a separate
method (`prepareIndexOperationOnReplica`) and adds a test for it.
Relates to #23359
The translog already occupies 43 bytes on disk when empty. If the
translog generation threshold is below this, the flush thread can get
stuck in an infinite loop repeatedly rolling the generation. This commit
adds a lower bound on the translog generation to avoid this problem,
however we keep the lower bound small for convenience in testing.
Relates #23779
This commit adds support for the pattern keyword marker filter in
Lucene. Previously, the keyword marker filter in Elasticsearch
supported specifying a keywords set or a path to a set of keywords.
This commit exposes the regular expression pattern based keyword marker
filter also available in Lucene, so that any token matching the pattern
specified by the `keywords_pattern` setting is excluded from being
stemmed by any stemming filters.
Closes#4877
As the query of a search request defaults to match_all,
calling _delete_by_query without an explicit query may
result in deleting all data.
In order to protect users against falling into that
pitfall, this commit adds a check to require the explicit
setting of a query.
Closes#23629
This commit adds the boolean similarity scoring from Lucene to
Elasticsearch. The boolean similarity provides a means to specify that
a field should not be scored with typical full-text ranking algorithms,
but rather just whether the query terms match the document or not.
Boolean similarity scores a query term equal to its query boost only.
Boolean similarity is available as a default similarity option and thus
a field can be specified to have boolean similarity by declaring in its
mapping:
"similarity": "boolean"
Closes#6731
Change the error response when using a non UTF timezone for range queries with epoch_millis
or epoch_second formats to an illegal argument exception. The goal is to provide a better
explanation of why the query has failed. The current behavior is to respond with a parse exception.
Closes#22621
Today, when parsing mget requests, we silently ignore keys in the top
level that do not match "docs" or "ids". This commit addresses this
situation by throwing an exception if any other key occurs here, and
providing the names of valid keys.
Relates #23746
This commit fixes the serialization for plugin info. Namely, the
serialization incorrectly specified the backwards compatibility version
as strictly after version 5.4.0, whereas it should be on or after
version 5.4.0.
This commit introduces a maximum size for a translog generation and
automatically rolls the translog when a generation exceeds the threshold
into a new generation. This threshold is configurable per index and
defaults to sixty-four megabytes. We introduce this constraint as
sequence numbers will require keeping around more than the current
generation (to ensure that we can rollback to the global
checkpoint). Without keeping the size of generations under control,
having to keep old generations around could consume excessive disk
space. A follow-up will enable commits to trim previous generations
based on the global checkpoint.
Relates #23606
The OpenJDK project provides early-access builds of upcoming
releases. These early-access builds are not suitable for
production. These builds sometimes end up on systems due to aggressive
packaging (e.g., Ubuntu). This commit adds a bootstrap check to ensure
these early-access builds are not being used in production.
Relates #23743
The hit object can be very small e.g. when using "stored_fields": ["_none_"],
this adds a test that checks that we can still parse back the object.
* also check type/id null
Removed `parse(String index, String type, String id, BytesReference source)` in DocumentMapper.java and replaced all of its use in Test files with `parse(SourceToParse source)`.
`parse(String index, String type, String id, BytesReference source)` was only used in test files and never in the main code so it was removed. All of the test files that used it was then modified to use `parse(SourceToParse source)` method that existing in DocumentMapper.java
This commit fixes an issue manifested in the
SharedClusterSnapshotRestoreIT#testGetSnapshotsRequest where a delete
request on a snapshot encounters an in-progress snapshot, so it first
tries to abort the snapshot. During the aborting process, an exception
is thrown which is handled by the snapshot listener's onSnapshotFailure
method. This method retries the delete snapshot request, only to
encounter that the snapshot is missing, throwing an exception. It is
possible that the snapshot failure resulted in the snapshot never having
been written to the repository, and hence, there is nothing to delete.
This commit handles the SnapshotMissingException by logging it and
notifying the listener of the missing snapshot.
Closes#23663
This is especially useful when we rewrite the query because the result of the rewrite can be very different on different shards. See #18254 for example.
The output of the different implementations of terms aggs is always very similar. The toXContent methods for each of those classes though was duplicating almost the same code multiple times. This commit centralizes the code for rendering XContent to a single place, which can be reused from the different terms aggs implementations.
We currently use POSIX exit codes in all of our CLIs. However, posix
only suggests these exit codes are standard across tools. It does not
prescribe particular uses for codes outside of that range. This commit
adds 2 exit codes specific to plugin installation to make distinguishing
an incorrectly built plugin and a plugin already existing easier.
closes#15295
This commit catches the underlying failure when trying to list plugin
information when a plugin is incompatible with the current version of
elasticsearch. This could happen when elasticsearch is upgraded but old
plugins still exist. With this change, all plugins will be output,
instead of failing at the first out of date plugin.
closes#20691
Changes reindex and friends to wait until the entire request has
been "cleaned up" before responding. "Clean up" in this context
is clearing the scroll and (for reindex-from-remote) shutting
down the client. Failures to clean up are still only logged, not
returned to the user.
Closes#23653
After the removal of the joda time hack we used to have, we can cleanup
the codebase handling in security, jarhell and plugins to be more picky
about uniqueness. This was originally in #18959 which was never merged.
closes#18959
The SharedClusterSnapshotRestoreIT#testDataFileCorruptionDuringRestore
would fail sporadically because it tried to simulate restoring a
corrupted index. The test would wait until the restore is finished (and
marked as failed) before exiting. However, in the background, the
cluster still continues to retry allocation of the failed shards,
despite the restore operation being marked as completed, which in turn
generates cluster states to process. The end of every ESIntegTestCase
verifies that none of the nodes have any pending cluster states to
process. Hence, this check sometimes fails on this particular test.
This commit solves the issue by ensuring the index is deleted before
exiting the test.
