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https://issues.apache.org/jira/browse/HDFS-10872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15654589#comment-15654589
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Erik Krogen edited comment on HDFS-10872 at 11/10/16 5:19 PM:
--------------------------------------------------------------
Test failures don't seem related and pass fine locally.
Checkstyle is complaining about an import only used within a Javadoc (marking
as unused) - changed it slightly so that checkstyle won't complain. Attaching
v006 patch.
was (Author: xkrogen):
Test failures don't seem related and pass fine locally.
Checkstyle is complaining about an import only used within a Javadoc - changed
it slightly so that checkstyle won't complain. Attaching v006 patch.
> Add MutableRate metrics for FSNamesystemLock operations
> -------------------------------------------------------
>
> Key: HDFS-10872
> URL: https://issues.apache.org/jira/browse/HDFS-10872
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Attachments: FSLockPerf.java, HDFS-10872.000.patch,
> HDFS-10872.001.patch, HDFS-10872.002.patch, HDFS-10872.003.patch,
> HDFS-10872.004.patch, HDFS-10872.005.patch, HDFS-10872.006.patch
>
>
> Add metrics for FSNamesystemLock operations to see, overall, how long each
> operation is holding the lock for. Use MutableRate metrics for now.
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