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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6285) HBase master should log INFO message when it attempts to assign a region
Date Thu, 28 Jun 2012 21:14:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13403478#comment-13403478
] 

Hadoop QA commented on HBASE-6285:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12533708/HBASE-6285_trunk.patch
  against trunk revision .

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 hadoop2.0.  The patch compiles against the hadoop 2.0 profile.

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

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

    -1 findbugs.  The patch appears to introduce 6 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:
                       org.apache.hadoop.hbase.regionserver.TestAtomicOperation

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/2285//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2285//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2285//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/2285//console

This message is automatically generated.
                
> HBase master should log INFO message when it attempts to assign a region
> ------------------------------------------------------------------------
>
>                 Key: HBASE-6285
>                 URL: https://issues.apache.org/jira/browse/HBASE-6285
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.94.0
>            Reporter: Aditya Kishore
>            Assignee: Aditya Kishore
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: HBASE-6285_trunk.patch
>
>
> With the default logging level (INFO), it is very difficult to diagnose a large HBase
cluster that is having problems assigning regions because the HBase master logs a DEBUG message
when it instructs a region-server to assign a region.
> You actually have to crawl EVERY HBase region-server log to find out which node received
the request for a particular region. Further, lets say the HBase master sends the request
and something goes wrong, we might not even get a message in the region-server log.

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