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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7621) Erasure Coding: update the Balancer/Mover data migration logic
Date Wed, 30 Sep 2015 16:01:22 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14937268#comment-14937268
] 

Hudson commented on HDFS-7621:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #8548 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/8548/])
HDFS-7621. Erasure Coding: update the Balancer/Mover data migration (zhezhang: rev 673280df24f0228bf01777035ceeab8807da8c40)
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/Dispatcher.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocolPB/PBHelper.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/mover/Mover.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/mover/TestMover.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/protocolPB/TestPBHelper.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/BlocksWithLocations.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-EC-7285.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/DFSTestUtil.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/proto/hdfs.proto


> Erasure Coding: update the Balancer/Mover data migration logic
> --------------------------------------------------------------
>
>                 Key: HDFS-7621
>                 URL: https://issues.apache.org/jira/browse/HDFS-7621
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Jing Zhao
>            Assignee: Walter Su
>              Labels: HDFS-7285
>             Fix For: HDFS-7285
>
>         Attachments: HDFS-7621.001.patch, HDFS-7621.002.patch, HDFS-7621.003.patch, HDFS-7621.004.patch,
HDFS-7621.005.patch, HDFS-7621.006.patch, HDFS-7621.007.patch
>
>
> Currently the Balancer/Mover only considers the distribution of replicas of the same
block during data migration: the migration cannot decrease the number of racks. With EC the
Balancer and Mover should also take into account the distribution of blocks belonging to the
same block group.



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