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https://issues.apache.org/jira/browse/FLINK-971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14043359#comment-14043359
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ASF GitHub Bot commented on FLINK-971:
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Github user asfgit closed the pull request at:
https://github.com/apache/incubator-flink/pull/38
> Configure Netty ByteBufAllocator instead of using the default configuration
> ---------------------------------------------------------------------------
>
> Key: FLINK-971
> URL: https://issues.apache.org/jira/browse/FLINK-971
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime
> Affects Versions: pre-apache-0.5.1
> Reporter: Ufuk Celebi
> Priority: Minor
>
> {{NettyConnectionManager}} uses the {{PooledByteBufAllocator.DEFAULT}}
> allocator, which allocates unnecessary heap arenas, which are never used.
> Also, the page size is smaller than our buffer size (+ headers etc.), which
> results in page-boundery crossing allocations.
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