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https://issues.apache.org/jira/browse/HDFS-8670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14646258#comment-14646258
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Hudson commented on HDFS-8670:
------------------------------
SUCCESS: Integrated in Hadoop-Mapreduce-trunk-Java8 #268 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/268/])
HDFS-8670. Better to exclude decommissioned nodes for namenode NodeUsage JMX
(Contributed by J.Andreina) (vinayakumarb: rev
6374ee0db445e0a1c3462c19ddee345df740cfb3)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommission.java
> 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, HDFS-8670.5.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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