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Date: Fri, 22 Mar 2013 01:31:16 +0000 (UTC)
From: "omkar vinit joshi (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: <JIRA.12559878.1339178748965.31943.1363915876663@arcas>
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Subject: [jira] [Updated] (MAPREDUCE-4330)
 TaskAttemptCompletedEventTransition invalidates previously successful
 attempt without checking if the newly completed attempt is successful
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-4330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

omkar vinit joshi updated MAPREDUCE-4330:
-----------------------------------------

    Status: Patch Available  (was: Open)

Both the issues are fixed.
                
> TaskAttemptCompletedEventTransition invalidates previously successful attempt without checking if the newly completed attempt is successful
> -------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4330
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4330
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Bikas Saha
>            Assignee: omkar vinit joshi
>         Attachments: MAPREDUCE-4330-21032013.patch
>
>
> The previously completed attempt is removed from successAttemptCompletionEventNoMap and marked OBSOLETE.
> After that, if the newly completed attempt is successful then it is added to the successAttemptCompletionEventNoMap. 
> This seems wrong because the newly completed attempt could be failed and thus there is no need to invalidate the successful attempt.
> One error case would be when a speculative attempt completes with killed/failed after the successful version has completed.

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