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https://issues.apache.org/jira/browse/HADOOP-4808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654846#action_12654846
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Devaraj Das commented on HADOOP-4808:
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Possibly true but we are trying to attack a lot of security issues with the
security work that we are doing. Also, things like HADOOP-4053 and HADOOP-4490
are positive steps in this direction. I guess we should close all such
loopholes going forward and this is one such issue...
> Blacklisting of TaskTrackers should take into account the user-ID
> -----------------------------------------------------------------
>
> Key: HADOOP-4808
> URL: https://issues.apache.org/jira/browse/HADOOP-4808
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Affects Versions: 0.20.0
> Reporter: Devaraj Das
>
> With HADOOP-4305, it is possible to blacklist TaskTrackers across jobs. It
> might make sense to also take into account the users whose tasks are being
> run on the TaskTrackers, and use it in the blacklisting strategy.
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