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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3711) AppMaster recovery for Medium to large jobs take long time
Date Fri, 03 Feb 2012 21:34:54 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13200066#comment-13200066

Hadoop QA commented on MAPREDUCE-3711:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision .

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

    +1 tests included.  The patch appears to include 18 new or modified tests.

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

    -1 javac.  The applied patch generated 538 javac compiler warnings (more than the trunk's
current 530 warnings).

    +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

    +1 core tests.  The patch passed unit tests in .

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

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1764//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1764//console

This message is automatically generated.
> AppMaster recovery for Medium to large jobs take long time
> ----------------------------------------------------------
>                 Key: MAPREDUCE-3711
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3711
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Siddharth Seth
>            Assignee: Robert Joseph Evans
>            Priority: Blocker
>             Fix For: 0.23.1
>         Attachments: MR-3711.txt, MR-3711.txt, MR-3711.txt
> Reported by [~karams]
> yarn.resourcemanager.am.max-retries=2
> Ran test cases with sort job on 350 scale having 16800 maps and 680 reduces -:
> 1. After 70 secs of Job Sumbission Am is killed using kill -9, around 3900 maps were
completed and 680 reduces were
> scheduled, Second AM got restart. Job got completed in 980 secs. AM took very less time
to recover.
> 2. After 150 secs of Job Sumbission AM is killed using kill -9, around 90% maps were
completed and 680 reduces were
> scheduled , Second AM got restart Job got completed in 1000 secs. AM got revocer.
> 3. After 150 secs of Job Sumbission AM as killed using kill -9, almost all maps were
completed and only 680 reduces
> were running, Recovery was too slow, AM was still revocering after 1hr :40 mis when I
killed the run.

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