The refactoring of RescoreBuilder and QueryRescoreBuilder moved parsing
previously in RescoreParseElement into the builders. This removes the
left over parse element.
By default, tasks are grouped by node. However, task execution in elasticsearch can be quite complex and an individual task that runs on a coordinating node can have many subtasks running on other nodes in the cluster. This commit makes it possible to list task grouped by common parents instead of by node. When this option is enabled all subtask are grouped under the coordinating node task that started all subtasks in the group. To group tasks by common parents, use the following syntax:
GET /tasks?group_by=parents
This allows the user to update the reindex throttle on the fly, with changes
that speed up the throttling being applied immediately and changes that
slow down the throttling being applied during the next batch. This means
that if a user throttles reindex in such a way that it tries to sleep for
16 years and then realizes that they've done something wrong then they
can change the throttle and reindex will wake up again. We don't apply
slow downs immediately so we never get in danger of losing the scan context.
Also, if reindex is canceled while it is sleeping (how it honor throttling)
then it'll immediately wake up and cancel itself.
The old HighlightParseElement was only left because it was still
used in tests and some places in InnerHits. This PR removes it
and replaces the tests that checked that the original parse element
and the rafactored highlighter code produce the same output with
new tests that compare builder input to the SearchContextHighlight
that is created.
This commit adds the new `action.search.shard_count.limit` setting which
configures the maximum number of shards that can be queried in a single search
request. It has a default value of 1000.
Today we don't invoke `IndexingOperationListeners` when we are running
a recovery form store or replaying translog from remote. This is problematic since
the actual code path for indexing is different between normal indexing and recovery.
An important detail is left out on recovery since we implemented the `IndexingMemoryController`
as an `IndexingOperationListener` we might never flush the `IndexWriter` of a recovering shard
which can lead to `OOMs` on node startup / recovery.
javanna
Nik Everett
Daniel Mitterdorfer
Martijn Laarman
Martijn van Groningen
Christoph Büscher
Clinton Gormley
Luca Cavanna
Adrien Grand
Lee Hinman
Jack Conradson
Igor Motov
Isabel Drost-Fromm
Simon Willnauer
Simon Willnauer