[jira] Updated: (HADOOP-5908) ArithmeticException in heartbeats with zero map jobs

["Amar Kamat (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-5908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amar Kamat updated HADOOP-5908:
-------------------------------

    Attachment: HADOOP-5908-v3.0.patch

Attaching a patch that guards the maps value to be non-zero in denominator. Result of test-patch
{code}
[exec] +1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 6 new or modified tests.
     [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 warnings.
     [exec] 
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings
{code}

Verified that jip.desiredMap() is checked for non-zero value before using it in denominator.

Testing in progress. 

> ArithmeticException in heartbeats with zero map jobs
> ----------------------------------------------------
>
>                 Key: HADOOP-5908
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5908
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Vinod K V
>            Assignee: Amar Kamat
>         Attachments: HADOOP-5908-v3.0.patch
>
>


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