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https://issues.apache.org/jira/browse/MAPREDUCE-6892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16162092#comment-16162092
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Andrew Wang commented on MAPREDUCE-6892:
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Peter, do you mind adding a release note to this JIRA summarizing the impact
for our end users? Thanks!
> 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
> Fix For: 3.0.0-beta1
>
> Attachments: MAPREDUCE-6892-001.patch, MAPREDUCE-6892-002.PATCH,
> MAPREDUCE-6892-003.patch, MAPREDUCE-6892-004.patch, MAPREDUCE-6892-005.patch,
> MAPREDUCE-6892-006.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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