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https://issues.apache.org/jira/browse/MAPREDUCE-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13072833#comment-13072833
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Devaraj K commented on MAPREDUCE-1554:
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This issue is not present in 0.20.4 branch because the history search itself
is not there. It is already rectified in 0.20.204 branch.
As I understand MRV2 will be merged to trunk and still the MRV1 features will
be available(may be for some time). It will be useful if we merge this patch to
trunk whoever uses the current mapreduce model. The same patch can be applied
to 0.21 and 0.22 branches also.
> If user name contains '_', then searching of jobs based on user name on job
> history web UI doesn't work
> -------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1554
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1554
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Ravi Gummadi
> Assignee: Devaraj K
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-1554.patch
>
>
> If user name contains underscore as part of it, then searching of jobs based
> on user name on job history web UI doesn't work. This is because in code,
> everywhere {code}split("_"){code} is done on history file name to get user
> name. And other parts of history file name also should *not* be obtained by
> using split("_").
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