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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6441) Add ability to exclude/include few datanodes while balancing
Date Mon, 28 Jul 2014 04:21:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14075881#comment-14075881
] 

Hadoop QA commented on HDFS-6441:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12658052/HDFS-6441.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 4 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
2.0.3) 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-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.ha.TestZKFailoverControllerStress
                  org.apache.hadoop.hdfs.server.balancer.TestBalancer
                  org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
                  org.apache.hadoop.TestGenericRefresh
                  org.apache.hadoop.TestRefreshCallQueue

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7471//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7471//console

This message is automatically generated.

> Add ability to exclude/include few datanodes while balancing
> ------------------------------------------------------------
>
>                 Key: HDFS-6441
>                 URL: https://issues.apache.org/jira/browse/HDFS-6441
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: balancer
>    Affects Versions: 2.4.0
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>         Attachments: HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch,
HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch, HDFS-6441.patch,
HDFS-6441.patch
>
>
> In some use cases, it is desirable to ignore a few data nodes  while balancing. The administrator
should be able to specify a list of data nodes in a file similar to the hosts file and the
balancer should ignore these data nodes while balancing so that no blocks are added/removed
on these nodes.
> Similarly it will be beneficial to specify that only a particular list of datanodes should
be considered for balancing.



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