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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8984) Move replication queues related methods in FSNamesystem to BlockManager
Date Fri, 04 Sep 2015 20:44:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14731387#comment-14731387
] 

Hudson commented on HDFS-8984:
------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #347 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/347/])
HDFS-8984. Move replication queues related methods in FSNamesystem to BlockManager. Contributed
by Haohui Mai. (wheat9: rev 715b9c649982bff91d1f9eae656ba3b82178e1a3)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestListCorruptFileBlocks.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DecommissionManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NameNodeAdapter.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicy.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystem.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/SafeMode.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/Namesystem.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java


> Move replication queues related methods in FSNamesystem to BlockManager
> -----------------------------------------------------------------------
>
>                 Key: HDFS-8984
>                 URL: https://issues.apache.org/jira/browse/HDFS-8984
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8984.000.patch, HDFS-8984.001.patch, HDFS-8984.002.patch, HDFS-8984.003.patch,
HDFS-8984.004.patch
>
>
> Currently {{FSNamesystem}} controls whether replication queue should be populated based
on whether the NN is in safe mode or whether it is an active NN.
> Replication is a concept on the block management layer. It is more natural to place the
functionality in the {{BlockManager}} class.
> This jira proposes to move the these methods to the {{BlockManager}}.



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