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From "Erik Krogen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10872) Add MutableRate metrics for FSNamesystemLock operations
Date Fri, 11 Nov 2016 23:55:59 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erik Krogen updated HDFS-10872:
-------------------------------
    Attachment: jmx-output
                HDFS-10872.010.patch

Thanks for looking, [~liuml07].

Attaching v010 patch with updated names for the metrics: {{FSN(Read|Write)LockOperationName}}.
I've also attached an example of what the outputted metrics look like on the JMX page ({{jmx-output}}).


> 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, HDFS-10872.007.patch,
HDFS-10872.008.patch, HDFS-10872.009.patch, HDFS-10872.010.patch, jmx-output
>
>
> 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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