[jira] [Commented] (HDFS-6376) Distcp data between two HA clusters requires another configuration

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-6376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14015093#comment-14015093 ] 

Hadoop QA commented on HDFS-6376:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12647824/HDFS-6376-5-trunk.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.TestClientReportBadBlock

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7025//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7025//console

This message is automatically generated.

> 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: 3.0.0
>
>         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-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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