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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8670) Better to exclude decommissioned nodes for namenode NodeUsage JMX
Date Wed, 29 Jul 2015 09:22:04 GMT

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

Vinayakumar B updated HDFS-8670:
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 2.8.0
           Status: Resolved  (was: Patch Available)

Committed to trunk and branch-2.
Thanks [~andreina] for the  contribution.
Thanks [~mingma] for reporting and reviews.

> 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
>             Fix For: 2.8.0
>         Attachments: HDFS-8670.1.patch, HDFS-8670.2.patch, HDFS-8670.3.patch, HDFS-8670.4.patch,
> 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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