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Increase default write queue size #59464

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7 changes: 7 additions & 0 deletions docs/reference/release-notes/7.9.asciidoc
Original file line number Diff line number Diff line change
Expand Up @@ -22,3 +22,10 @@ Snapshot restore throttling::
default that's used for `indices.recovery.max_bytes_per_sec`. This means
that no behavioral change will be observed by clusters where the recovery
and restore settings had not been adapted from the defaults. {es-pull}58658[#58658]

Thread pool write queue size::
* The WRITE thread pool default queue size (`thread_pool.write.size`) has been
increased from 200 to 4000. Additional memory-oriented back pressure has been
introduced with the `indexing_limits.memory.limit` setting. This setting
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configures a limit to the number of bytes allowed to be consumed by outstanding
indexing requests. {es-issue}59263[#59263]