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From "J.Andreina (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-8670) Better to exclude decommissioned nodes for namenode NodeUsage JMX
Date Fri, 26 Jun 2015 06:53:04 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

J.Andreina reassigned HDFS-8670:
--------------------------------

    Assignee: J.Andreina

> 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
>            Assignee: J.Andreina
>
> 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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