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https://issues.apache.org/jira/browse/HBASE-27491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Beaudreault resolved HBASE-27491.
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Fix Version/s: 2.4.16
2.5.3
Resolution: Fixed
Pushed to branch-2, 2.5, and 2.5.
> AsyncProcess should not clear meta cache for RejectedExecutionException
> -----------------------------------------------------------------------
>
> Key: HBASE-27491
> URL: https://issues.apache.org/jira/browse/HBASE-27491
> Project: HBase
> Issue Type: Improvement
> Reporter: Bryan Beaudreault
> Assignee: Briana Augenreich
> Priority: Major
> Fix For: 2.4.16, 2.5.3
>
>
> Batch requests using AsyncProcess get submitted to a thread pool. If the pool
> is too small or backing regionservers are overloaded, the pool may reject
> requests. Currently this causes a cache clear, which only exacerbates issues
> in most cases.
> If there's a real reason to clear cache, the individual failing tasks that
> actually get accepted into the pool should be enough to appropriately clear
> the cache. So let's special case REE in AsyncRequestFutureImpl to not clear
> cache.
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