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https://issues.apache.org/jira/browse/HDFS-11560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15951436#comment-15951436
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Arpit Agarwal commented on HDFS-11560:
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Thanks [~hanishakoneru]. +1 for the v2 patch, pending Jenkins.

> Expose slow disks via NameNode JMX
> ----------------------------------
>
>                 Key: HDFS-11560
>                 URL: https://issues.apache.org/jira/browse/HDFS-11560
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>         Attachments: HDFS-11560.001.patch, HDFS-11560.002.patch
>
>
> Each Datanode exposes its slow disks through Datanode JMX. We can expose the 
> overall slow disks (among all datanodes) via the NameNode JMX.



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