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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6376) Distcp data between two HA clusters requires another configuration
Date Sat, 06 Sep 2014 11:29:31 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14124435#comment-14124435
] 

Hudson commented on HDFS-6376:
------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #672 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/672/])
HDFS-6376. Distcp data between two HA clusters requires another configuration. Contributed
by Dave Marion and Haohui Mai. (jing: rev c6107f566ff01e9bfee9052f86f6e5b21d5e89f3)
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSUtil.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBlockPoolManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/GetConf.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/TestGetConf.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml


> Distcp data between two HA clusters requires another configuration
> ------------------------------------------------------------------
>
>                 Key: HDFS-6376
>                 URL: https://issues.apache.org/jira/browse/HDFS-6376
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, federation, hdfs-client
>    Affects Versions: 2.2.0, 2.3.0, 2.4.0
>         Environment: Hadoop 2.3.0
>            Reporter: Dave Marion
>            Assignee: Dave Marion
>             Fix For: 3.0.0, 2.6.0
>
>         Attachments: HDFS-6376-2.patch, HDFS-6376-3-branch-2.4.patch, HDFS-6376-4-branch-2.4.patch,
HDFS-6376-5-trunk.patch, HDFS-6376-6-trunk.patch, HDFS-6376-7-trunk.patch, HDFS-6376-branch-2.4.patch,
HDFS-6376-patch-1.patch, HDFS-6376.000.patch, HDFS-6376.008.patch, HDFS-6376.009.patch, HDFS-6376.010.patch,
HDFS-6376.011.patch
>
>
> User has to create a third set of configuration files for distcp when transferring data
between two HA clusters.
> Consider the scenario in [1]. You cannot put all of the required properties in core-site.xml
and hdfs-site.xml for the client to resolve the location of both active namenodes. If you
do, then the datanodes from cluster A may join cluster B. I can not find a configuration option
that tells the datanodes to federate blocks for only one of the clusters in the configuration.
> [1] http://mail-archives.apache.org/mod_mbox/hadoop-user/201404.mbox/%3CBAY172-W2133964E0C283968C161DD1520%40phx.gbl%3E



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