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https://issues.apache.org/jira/browse/HDFS-5180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13803735#comment-13803735
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Shinichi Yamashita commented on HDFS-5180:
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I made a patch for the draft which output slow rpc request to log. I output
only a slow request in log by setting the threshold in a property.
The default threshold time is 1000 ms. I think that this default value is
enough long as a RPC request.
> Output the processing time of slow RPC request to node's log
> ------------------------------------------------------------
>
> Key: HDFS-5180
> URL: https://issues.apache.org/jira/browse/HDFS-5180
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Shinichi Yamashita
> Assignee: Shinichi Yamashita
> Attachments: HDFS-5180.patch, HDFS-5180.patch
>
>
> Command and ugi are output now by audit log of NameNode. But it is not output
> for the processing time of command to audit log.
> For example, we must check which command is a problem when a trouble such as
> the slow down occurred in NameNode.
> It should add the processing time to audit log to know the abnormal sign.
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