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From "zhihai xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6433) launchTime may be negative
Date Mon, 20 Jul 2015 19:21:04 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14633966#comment-14633966
] 

zhihai xu commented on MAPREDUCE-6433:
--------------------------------------

I uploaded a patch MAPREDUCE-6433.000.patch for review, The patch initialize {{MRAppMaster#recoveredJobStartTime}}
as -1 instead of 0 and use {{jse.getRecoveredJobStartTime()}} as launch time only when {{jse.getRecoveredJobStartTime()}}
is not -1.


> launchTime may be negative
> --------------------------
>
>                 Key: MAPREDUCE-6433
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6433
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobhistoryserver
>    Affects Versions: 2.4.1
>            Reporter: Allen Wittenauer
>            Assignee: zhihai xu
>         Attachments: MAPREDUCE-6433.000.patch, REPRODUCE.patch
>
>
> Under extremely rare conditions (.0017% in our sample size), launchTime in the jhist
files may be set to -1.



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