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From "Scott Chen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1825) jobqueue_details.jsp and FairSchedulerServelet should not call finishedMaps and finishedReduces when job is not initialized
Date Thu, 03 Feb 2011 22:32:29 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12990340#comment-12990340
] 

Scott Chen commented on MAPREDUCE-1825:
---------------------------------------

test-patch result:
{code}
     [exec] -1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified
tests.
     [exec]                         Please justify why no new tests are needed for this patch.
     [exec]                         Also please list what manual steps were performed to verify
this patch.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
     [exec]
     [exec]     +1 system test framework.  The patch passed system test framework compile.
     [exec]
     [exec]
     [exec]
     [exec]
     [exec] ======================================================================
     [exec] ======================================================================
     [exec]     Finished build.
     [exec] ======================================================================
     [exec] ======================================================================
{code}

> jobqueue_details.jsp and FairSchedulerServelet should not call finishedMaps and finishedReduces
when job is not initialized
> ---------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1825
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1825
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.20.1
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Scott Chen
>             Fix For: 0.22.0
>
>         Attachments: MAPREDUCE-1825.txt, MAPREDUCE-1825_1.txt, MAPREDUCE-1825_2.txt,
MAPREDUCE-1825_3.txt, jstacks.zip
>
>
> JobInProgress.finishedMaps() and finishedReduces() are synchronized. They are called
from jobqueue_details.jsp and FairSchedulerServelet which iterates through all jobs. If any
job is in initialization, these pages don't come up until the initialization finishes.
> See [comment|https://issues.apache.org/jira/browse/MAPREDUCE-1354?focusedCommentId=12834139&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12834139]
for more details

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