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Better description of real-memory breaker changes to aggs (#57306) 

The old description mentions a setting that we ended up not merging.
The periodic real-memory checks are automatic and do not require
the user to configure any setting.
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Zachary Tong 2020-06-01 14:58:20 -04:00 committed by GitHub
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docs/reference/release-notes/highlights-7.7.0.asciidoc
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@ -86,11 +86,10 @@ therefore helps interpret these results.
[float] [float]
=== Finer memory control for bucket aggregations === Finer memory control for bucket aggregations
We introduced a new `search.check_buckets_step_size` setting to While building buckets, aggregations will now periodically check the
better control how the coordinating node allocates memory when aggregating real-memory circuit breaker before continuing to allocate more buckets. This
buckets. The allocation of buckets is now be done in steps, each step allows better responsivity to memory pressure and avoids `OutOfMemory`
allocating a number of buckets equal to this setting. To avoid an `OutOfMemory` situations due to allocating more buckets than the node can handle.
error, a parent circuit breaker check is performed on allocation.
// end::notable-highlights[] // end::notable-highlights[]