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From "Haibo Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6892) Issues with the count of failed/killed tasks in the jhist file
Date Mon, 28 Aug 2017 16:34:03 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143964#comment-16143964
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Haibo Chen commented on MAPREDUCE-6892:
---------------------------------------

Thanks for the update [~pbacsko]! The patch is very close to be ready. But I still think we
should give -1 as the default value to stand for unknown in the schema (Events.avpr). 
In TestJobHistoryParsing.testHistoryParsingForKilledAndFailedAttempts(), let's use // for
the comments you've added (/**/ is for class/methods) and remove the nested for loop to assert
RACK NAME for each of the tasks (I don't think they are relevant). Otherwise, the patch LGTM.

> Issues with the count of failed/killed tasks in the jhist file
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-6892
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6892
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client, jobhistoryserver
>            Reporter: Peter Bacsko
>            Assignee: Peter Bacsko
>         Attachments: MAPREDUCE-6892-001.patch, MAPREDUCE-6892-002.PATCH, MAPREDUCE-6892-003.patch,
MAPREDUCE-6892-004.patch, MAPREDUCE-6892-005.patch
>
>
> Recently we encountered some issues with the value of failed tasks. After parsing the
jhist file, {{JobInfo.getFailedMaps()}} returned 0, but actually there were failures. 
> Another minor thing is that you cannot get the number of killed tasks (although this
can be calculated).
> The root cause is that {{JobUnsuccessfulCompletionEvent}} contains only the successful
map/reduce task counts. Number of failed (or killed) tasks are not stored.



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