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https://issues.apache.org/jira/browse/MAPREDUCE-2054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13000046#comment-13000046
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Thomas Sandholm commented on MAPREDUCE-2054:
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The bug that this patch fixes was due to a change in the real queumanager class
which the scheduler test does not use in order to do roundtrip testing without
setting up a full mapreduce cluster.
> Hierarchical queue implementation broke dynamic queue addition in Dynamic
> Scheduler
> -----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2054
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2054
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/dynamic-scheduler
> Affects Versions: 0.21.0
> Reporter: Thomas Sandholm
> Assignee: Thomas Sandholm
> Fix For: 0.21.1
>
> Attachments: MAPREDUCE-2054.patch
>
>
> Queue names were returned from the queue manager as an immutable set after
> the hierarchical queuname feature which breaks the dynamic priority scheduler
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