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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6293) HMaster does not go down while splitting logs even if explicit shutdown is called.
Date Wed, 04 Jul 2012 21:43:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13406764#comment-13406764
] 

Hadoop QA commented on HBASE-6293:
----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12534877/6293.txt
  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 generated 5 javac compiler warnings (more than the trunk's
current 4 warnings).

    -1 findbugs.  The patch appears to introduce 7 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.security.access.TestZKPermissionsWatcher

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/2320//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2320//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2320//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/2320//console

This message is automatically generated.
                
> HMaster does not go down while splitting logs even if explicit shutdown is called.
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-6293
>                 URL: https://issues.apache.org/jira/browse/HBASE-6293
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.1, 0.94.0
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>             Fix For: 0.92.2, 0.96.0, 0.94.1
>
>         Attachments: 6293.txt
>
>
> When master starts up and tries to do splitlog, in case of any error we try to do that
infinitely in a loop until it succeeds.
> But now if we get a shutdown call, inside SplitLogManager
> {code}
>           if (stopper.isStopped()) {
>             LOG.warn("Stopped while waiting for log splits to be completed");
>             return;
>           }
> {code}
> Here we know that the master has stopped.  As the task may not be completed now
> {code}
>  if (batch.done != batch.installed) {
>       batch.isDead = true;
>       tot_mgr_log_split_batch_err.incrementAndGet();
>       LOG.warn("error while splitting logs in " + logDirs +
>       " installed = " + batch.installed + " but only " + batch.done + " done");
>       throw new IOException("error or interrupt while splitting logs in "
>           + logDirs + " Task = " + batch);
>     }
> {code} 
> we throw an exception.  In MasterFileSystem.splitLogAfterStartup() we don't check if
the master is stopped and we try continously. 

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