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Posted to hdfs-issues@hadoop.apache.org by "Shinichi Yamashita (JIRA)" <ji...@apache.org> on 2013/10/24 06:33:43 UTC

[jira] [Commented] (HDFS-5180) Output the processing time of slow RPC request to node's log

    [ https://issues.apache.org/jira/browse/HDFS-5180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13803735#comment-13803735 ] 

Shinichi Yamashita commented on HDFS-5180:
------------------------------------------

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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