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https://issues.apache.org/jira/browse/HADOOP-9065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13531687#comment-13531687
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Alejandro Abdelnur commented on HADOOP-9065:
--------------------------------------------
Got it, thx. +1
> JobID.forName() isn't strict enough
> -----------------------------------
>
> Key: HADOOP-9065
> URL: https://issues.apache.org/jira/browse/HADOOP-9065
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Fix For: 1.2.0, 2.0.3-alpha
>
> Attachments: HADOOP-9065_branch-1.patch, HADOOP-9065.patch
>
>
> If you have a job running as job_201208221603_0003, and then try to kill a
> job passing id job_201208221603_003, it will kill job_201208221603_0003
> because the last part of the JobID is parsed as an integer. We should make
> JobID.forName() stricter to prevent this and similar situations as the
> current behavior isn't so obvious.
> More specifically, we shouldn't accept JobIDs if the last part of the JobID
> is:
> {{-}} less than 4 characters (e.g. _003, _123)
> {{-}} more than 4 characters and has a leading zero (e.g. _00003, _01234)
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