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https://issues.apache.org/jira/browse/HDFS-13493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16449005#comment-16449005
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Erik Krogen edited comment on HDFS-13493 at 4/23/18 11:02 PM:
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This requires setting the acceptor and selector thread counts as well as the
max. Attaching v000 patch for the same.
was (Author: xkrogen):
This requires setting the acceptor and selector thread counts as well as the
max.
> Reduce the HttpServer2 thread count on DataNodes
> ------------------------------------------------
>
> Key: HDFS-13493
> URL: https://issues.apache.org/jira/browse/HDFS-13493
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HDFS-13272.000.patch
>
>
> Given that HFTP was removed in Hadoop 3 and WebHDFS is handled via Netty, the
> HttpServer2 instance within the DataNode is only used for very basic tasks
> such as the web UI. Thus we can safely reduce the thread count used here.
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