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https://issues.apache.org/jira/browse/HDFS-9461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347783#comment-15347783
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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
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/diskbalancer/datamodel/DiskBalancerVolume.java
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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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