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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9461) DiskBalancer: Add Report Command
Date Fri, 24 Jun 2016 06:20:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347783#comment-15347783
] 

Hudson commented on HDFS-9461:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #10014 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10014/])
HDFS-9461. DiskBalancer: Add Report Command. Contributed by Xiaobing (arp: rev b502102bb1a1f416f43dd1227886c57ccad70fcc)
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/command/Command.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/resources/diskBalancer/data-cluster-64node-3disk.json
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/command/ReportCommand.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/diskbalancer/command/TestDiskBalancerCommand.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/datamodel/DiskBalancerVolume.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DiskBalancer.java


> DiskBalancer: Add Report Command
> --------------------------------
>
>                 Key: HDFS-9461
>                 URL: https://issues.apache.org/jira/browse/HDFS-9461
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer & mover
>    Affects Versions: 2.8.0
>            Reporter: Xiaobing Zhou
>            Assignee: Xiaobing Zhou
>         Attachments: HDFS-9461-HDFS-1312.000.patch, HDFS-9461-HDFS-1312.001.patch, HDFS-9461-HDFS-1312.002.patch,
HDFS-9461-HDFS-1312.003.patch, HDFS-9461-HDFS-1312.004.patch, HDFS-9461-HDFS-1312.005.patch
>
>
> It's quite helpful to do:
> 1) report node information for the top X of DataNodes that will benefit from running
disk balancer
> 2) report volume level information for any specific DataNode. 
> This is done by:
> 1) reading the cluster info, sorting the DiskbalancerNodes by their NodeDataDensity and
printing out their corresponding information.
> 2) reading the cluster info, and print out volume level information for that DataNode
requested.



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