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https://issues.apache.org/jira/browse/HDFS-8670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602486#comment-14602486
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J.Andreina commented on HDFS-8670:
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I would like to work on this issue.
[~mingma], please reassign to you , if you have already started working on this.
> Better to exclude decommissioned nodes for namenode NodeUsage JMX
> -----------------------------------------------------------------
>
> Key: HDFS-8670
> URL: https://issues.apache.org/jira/browse/HDFS-8670
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ming Ma
>
> The namenode NodeUsage JMX has Max, Median, Min and Standard Deviation of
> DataNodes usage, it currently includes decommissioned nodes for the
> calculation. However, given balancer doesn't work on decommissioned nodes and
> sometimes we could have nodes stay in decommissioned states for a long time;
> it might be better to exclude decommissioned nodes for the metrics
> calculation.
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