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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-964) Inaccurate values in jobSummary logs
Date Wed, 09 Sep 2009 05:57:58 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12752924#action_12752924
] 

Arun C Murthy commented on MAPREDUCE-964:
-----------------------------------------

Hmm... I'm concerned we might have a race-condition causing these spurious values - I'll start
digging.

> Inaccurate values in jobSummary logs
> ------------------------------------
>
>                 Key: MAPREDUCE-964
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-964
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.20.1
>            Reporter: Rajiv Chittajallu
>            Priority: Critical
>
> For some jobs the mapSlotSeconds is incorrect.
> negative value
> 09/09/01 18:31:44 INFOmapred.JobInProgress$JobSummary: jobId=job_200908270718_4568,submitTime=1251823543976,launchTime=1251823554310,finishTime=1251829904565,
           numMaps=7965,numSlotsPerMap=1,numReduces=40,numSlotsPerReduce=1,user=wile,queue=runner,status=SUCCEEDED,
        mapSlotSeconds=-2503133523,reduceSlotsSeconds=186536,clusterMapCapacity=11262,clusterReduceCapacity=3754
> or too high
> 09/09/02 23:59:57 INFO mapred.JobInProgress$JobSummary: jobId=job_200908270718_5861,submitTime=1251935672924,launchTime=1251935687698,finishTime=1251935997949,
           numMaps=1026,numSlotsPerMap=1,numReduces=10,numSlotsPerReduce=1,user=dfsload,queue=gridops,status=SUCCEEDED,
        
> mapSlotSeconds=1251949742,reduceSlotsSeconds=537,clusterMapCapacity=11262,clusterReduceCapacity=3754

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