Today we maintain a map of open connections in order to close them when
a low level channel gets closed or handles a failure. We also spawn a thread due to some
tricky concurrency issues especially with respect to netty since they listener might
be called on a transport / boss thread. Executions on those threads must not be blocking
since otherwise we will likely deadlock the event processing which adds to the
complexity of the concurrency model in this class.
This change associates the connection with the close callback that every channel invokes
once it's closed which allows us to remove the connections map. A relaxed non-blocking
concurrency model in the connection close listener allows cleaning up connected nodes without
blocking on any lock.
* Add MSI installation to documentation
Move installation documentation for Windows with the .zip archive into the zip and tar installation documentation, and clearly indicate any differences for installing on macOS/Linux and Windows.
* Separate out installation with .zip on Windows
This test is failing because delete /{index} requests no longer support
index matching an alias. This commit removes testing such requests again
aliases.
Closes#25284
This change adds tests for the aggregation parsing that try to simulate that we
can parse existing aggregations in a forward compatible way in the future,
ignoring potential newly added fields or substructures to the xContent response.
Removes the `assemble` task from the `build` task when we have
removed `assemble` from the project. We removed `assemble` from
projects that aren't published so our releases will be faster. But
That broke CI because CI builds with `gradle precommit build` and,
it turns out, that `build` includes `check` and `assemble`. With
this change CI will only run `check` for projects without an
`assemble`.
Today TcpTransport is the de-facto base-class for transport implementations.
The need for all the callbacks we have in TransportServiceAdaptor are not necessary
anymore since we can simply have the logic inside the base class itself. This change
moves the stats metrics directly into TcpTransport removing the need for low level
bytes send / received callbacks.
Moves the keyword tokenizer to the analysis-common module. The keyword tokenizer is special because it is used by CustomNormalizerProvider so I pulled it out into its own PR. To get the move to work I've reworked the lookup from static to one using the AnalysisRegistry. This seems safe enough.
Part of #23658.
Removes the `assemble` task from projects that are not published.
This should speed up `gradle assemble` by skipping projects that
don't need to be built. Which is useful because `gradle assemble`
is how we cut releases.
With #23997 we have introduced a new internal index option that allows to resolve index expressions only against concrete indices while ignoring aliases. Such index option was applied to IndicesAliasesRequest, so that the index part of alias actions would only be resolved against concrete indices.
Same is done in this commit with delete index request. Deleting aliases has always been confusing as some users expect it to only remove the alias from the index (which has its own specific API). Even worse, in case of filtered aliases, deleting an alias may leave users with the expectation that only the documents that match the filter are deleted, which was never the case. To address all this confusion, delete index api works now only against concrete indices. WIldcard expressions will be only resolved against concrete index, as if aliases didn't exist. If one tries to delete against an alias, an IndexNotFoundException will be thrown regardless of whether the alias exists or not, as a concrete index with such a name doesn't exist.
Closes#2318
If a cluster is configured with an HDFS repository and a node is started, that node must be able
to reach HDFS, or else when it attempts to add the repository from the cluster state at start up
it will fail to connect and the repository will be left in an inconsistent state. Adding a blurb in the
docs to outline the expected availability for HDFS when using the repository plugin.
It adds notes about:
- how preference can help optimize cache usage
- the fact that too many replicas can hurt search performance due to lower
utilization of the filesystem cache
- how index sorting can improve _source compression
- how always putting fields in the same order in documents can improve _source
compression
* Add documentation for the new parent-join field
This commit adds the docs for the new parent-join field.
It explains how to define, index and query this new field.
Relates #20257
UnicodeSetFilter was only allowed in the icu_folding token filter.
It seems useful to expose this setting in icu_normalizer token filter
and char filter.
This PR extends the TranslogDeletionPolicy to allow keeping the translog files longer than what is needed for recovery from lucene. Specifically, we allow specifying the total size of the files and their maximum age (i.e., keep up to 512MB but no longer than 12 hours). This will allow making ops based recoveries more common.
Note that the default size and age still set to 0, maintaining current behavior. This is needed as the other components in the system are not yet ready for a longer translog retention. I will adapt those in follow up PRs.
Relates to #10708
This commit does two things:
1. Adds logging at the DEBUG level for when the index-N blob is
updated.
2. When attempting to delete a snapshot, if the snapshot was not found
in the repository data, an exception is now thrown instead of silently
ignoring the lack of presence of the snapshot in the repository data.
* Add a section named "relation" in the ParentJoinFieldMapper
This commit puts the parent/child definition in an inner section named "relation".
Mapping for the parent-join will look like this:
```
"join_field": {
"type": "join"
"relations":
"parent": "child"
}
}
```
to specify a `targetField`. This results in some interesting behavior that was missed in the review.
This processor sorts in-place, so there is a side-effect in both the original field and the target field.
Another bug was that the targetField was not being set if the list being sorted was fewer than two elements.
The new behavior works like this: If targetField and fieldName are not the same, we copy the list.
* Upgrade icu4j for the ICU analysis plugin to 59.1
Lucene upgraded to 59.1 so we should use the same.
Closes#21425
* Add breaking change for the icu upgrade
We use assertBusy in many places where the underlying code throw exceptions. Currently we need to wrap those exceptions in a RuntimeException which is ugly.
This commit adds a NamedXContentProvider interface that can
be implemented by plugins or modules using Java's SPI feature
in order to provide additional NamedXContent parsers to external
applications like the Java High Level Rest Client.
At index time Elasticsearch needs to look up the version associated with the
`_id` of the document that is being indexed, which is often the bottleneck for
indexing.
While reviewing the output of the `jfr` telemetry from a Rally benchmark, I saw
that significant time was spent in `ConcurrentHashMap#get` and `ThreadLocal#get`.
The reason is that we cache lookup objects per thread and segment, and for every
indexed document, we first need to look up the cache associated with this
segment (`ConcurrentHashMap#get`) and then get a state that is local to the
current thread (`ThreadLocal#get`). So if you are indexing N documents per
second and have S segments, both these methods will be called N*S times per
second.
This commit changes version lookup to use a cache per index reader rather than
per segment. While this makes cache entries live for less long, we now only need
to do one call to `ConcurrentHashMap#get` and `ThreadLocal#get` per indexed
document.
This snapshot has faster range queries on range fields (LUCENE-7828), more
accurate norms (LUCENE-7730) and the ability to use fake term frequencies
(LUCENE-7854).
This commit adds a gradle project, set inside the root build.gradle,
which controls all our bwc tests. This allows for seamless (ie no errant
CI failures) backporting of behavior.
This commit renames the needsScores method so as to make it
automatically generatable, based on the name of the `_score` variable
which is available in search scripts. It also adds documentation to
ScriptContext to explain the naming and signature of such methods.
This commit removes the global caching of the field query and replaces it with
a caching per field. Each field can use a different `highlight_query` and the rewriting of
some queries (prefix, automaton, ...) depends on the targeted field so the query used for highlighting
must be unique per field.
There might be a small performance penalty when highlighting multiple fields since the query needs to be rewritten
once per highlighted field with this change.
Fixes#25171
* Remove QUERY_AND_FETCH BWC for pre-5.3.0 nodes
This was a BWC layer where we expicitly set the `search_type` to
"query_and_fetch" when a single node is queried on pre-5.3 nodes. Since 6.0 no
longer needs to be compatible with 5.3 nodes, this can be removed.
* Fix indentation
* Remove unused QUERY_FETCH_ACTION_NAME constant
Martijn van Groningen
javanna
Simon Willnauer
Russ Cam
Boaz Leskes
Jason Tedor
Christoph Büscher
Nik Everett
Ali Beyad
Luca Cavanna
James Baiera
Jim Ferenczi
Adrien Grand
David Causse
Jack Conradson
Guillaume Le Floch
debadair
markharwood
Tal Levy
Tanguy Leroux
Alexander Kazakov
Ryan Ernst
Lee Hinman