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https://issues.apache.org/jira/browse/DRILL-4623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15253179#comment-15253179
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ASF GitHub Bot commented on DRILL-4623:
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Github user jacques-n commented on the pull request:
https://github.com/apache/drill/pull/486#issuecomment-213209699
I'm inclined not to hardcode. This solve the issue. You may want to add a
note to the upgrade documentation that people need to start with the
drill-env.sh base and then apply their own changes on top.
> 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
>
> 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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