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https://issues.apache.org/jira/browse/HDFS-9007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14990593#comment-14990593
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Hudson commented on HDFS-9007:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #2569 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2569/])
HDFS-9007. Fix HDFS Balancer to honor upgrade domain policy. (Ming Ma (lei: rev
ec414600ede8e305c584818565b50e055ea5d2b5)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockPlacementPolicyDefault.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicyWithUpgradeDomain.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestDNFencing.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancer.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/DFSTestUtil.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicyWithNodeGroup.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/server/blockmanagement/BlockPlacementPolicyWithNodeGroup.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockPlacementPolicy.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockPlacementPolicyWithUpgradeDomain.java
> Fix HDFS Balancer to honor upgrade domain policy
> ------------------------------------------------
>
> Key: HDFS-9007
> URL: https://issues.apache.org/jira/browse/HDFS-9007
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ming Ma
> Assignee: Ming Ma
> Fix For: 3.0.0, 2.8.0
>
> Attachments: HDFS-9007-2.patch, HDFS-9007-branch-2.patch,
> HDFS-9007.patch
>
>
> In the current design of HDFS Balancer, it doesn't use BlockPlacementPolicy
> used by namenode runtime. Instead, it has somewhat redundant code to make
> sure block allocation conforms with the rack policy.
> When namenode uses upgrade domain based policy, we need to make sure that
> HDFS balancer doesn't move blocks in a way that could violate upgrade domain
> block placement policy.
> In the longer term, we should consider how to make Balancer independent of
> the actual BlockPlacementPolicy as in HDFS-1431.
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