OpenSearch

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History

Simon Willnauer f23ed6188d

Skip shard refreshes if shard is search idle (#27500 )

Today we refresh automatically in the background by default very second.
This default behavior has a significant impact on indexing performance
if the refreshes are not needed.
This change introduces a notion of a shard being `search idle` which a
shard transitions to after (default) `30s` without any access to an
external searcher. Once a shard is search idle all scheduled refreshes
will be skipped unless there are any refresh listeners registered.
If a search happens on a `serach idle` shard the search request _park_
on a refresh listener and will be executed once the next scheduled refresh
occurs. This will also turn the shard into the `non-idle` state immediately.

This behavior is only applied if there is no explicit refresh interval set.

2017-11-27 18:16:10 +01:00

aggregations.asciidoc

#26173 : Removed global_ordinals_hash and global_ordinals_low_cardinality exeuction hint deprecated in 6.1

2017-08-21 20:44:34 +02:00

analysis.asciidoc

Replace delimited_payload_filter by delimited_payload (#26625 )

2017-11-24 13:03:19 +01:00

api.asciidoc

Standardize underscore requirements in parameters (#27414 )

2017-11-17 15:31:52 -05:00

cluster.asciidoc

remove _primary and _replica shard preferences (#26791 )