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https://issues.apache.org/jira/browse/HDFS-6376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14009201#comment-14009201
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Dave Marion commented on HDFS-6376:
-----------------------------------
Jenkins build failing with:
HDFS-6376 patch is being downloaded at Mon May 26 23:54:17 UTC 2014 from
http://issues.apache.org/jira/secure/attachment/12646826/HDFS-6376-3-branch-2.4.patch
cp: cannot stat `/home/jenkins/buildSupport/lib/*': No such file or directory
The patch does not appear to apply with p0 to p2
PATCH APPLICATION FAILED
> 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: 2.3.0, 2.4.0
> Environment: Hadoop 2.3.0
> Reporter: Dave Marion
> Fix For: 2.4.1
>
> Attachments: HDFS-6376-2.patch, HDFS-6376-3-branch-2.4.patch,
> HDFS-6376-branch-2.4.patch, HDFS-6376-patch-1.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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