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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3504) Configurable retry in DFSClient
Date Sat, 09 Jun 2012 03:21:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13292180#comment-13292180
] 

Hadoop QA commented on HDFS-3504:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12531451/h3504_20120608.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 2 new or modified test files.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.ha.TestZKFailoverController

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/2623//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2623//console

This message is automatically generated.
                
> Configurable retry in DFSClient
> -------------------------------
>
>                 Key: HDFS-3504
>                 URL: https://issues.apache.org/jira/browse/HDFS-3504
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Siddharth Seth
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h3504_20120607.patch, h3504_20120608.patch
>
>
> When NN maintenance is performed on a large cluster, jobs end up failing. This is particularly
bad for long running jobs. The client retry policy could be made configurable so that jobs
don't need to be restarted.

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