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https://issues.apache.org/jira/browse/FLINK-3120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15134024#comment-15134024
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ASF GitHub Bot commented on FLINK-3120:
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Github user uce commented on the pull request:
https://github.com/apache/flink/pull/1593#issuecomment-180305086
(I forgot to add that in a small set of experiments with both YARN and
Standalone setups on 4 nodes I did not notice a difference in performance. For
YARN, I tested both allocating many small containers and few large ones.)
> Set number of event loop thread and number of buffer pool arenas to same
> number
> -------------------------------------------------------------------------------
>
> Key: FLINK-3120
> URL: https://issues.apache.org/jira/browse/FLINK-3120
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime
> Affects Versions: 0.10.1
> Reporter: Ufuk Celebi
> Assignee: Ufuk Celebi
> Fix For: 0.10.2
>
>
> If a user changes the default number of event loop threads, the number of
> buffer pool arenas is still the default (2 * cores). Both numbers should be
> the same to prevent buffer allocation contention during runtime.
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