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https://issues.apache.org/jira/browse/DRILL-4623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dechang Gu closed DRILL-4623.
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Verified with gitid 39406d6 on tpch concurrency test with 28 and 32 threads.
There is no error message like "Connection reset by peer" .
> Disable Epoll by Default
> ------------------------
>
> Key: DRILL-4623
> URL: https://issues.apache.org/jira/browse/DRILL-4623
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Sudheesh Katkam
> Assignee: Sudheesh Katkam
> Fix For: 1.8.0
>
>
> At higher concurrency (and/or spuriously), we hit [netty issue
> #3539|https://github.com/netty/netty/issues/3539]. This is an issue with the
> version of Netty Drill currently uses. Once Drill moves to a later version of
> Netty, epoll should be reenabled by default.
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