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https://issues.apache.org/jira/browse/MAPREDUCE-4944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13557031#comment-13557031
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Junping Du commented on MAPREDUCE-4944:
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I prefer to break AdminOpProtocol if we have to break compatibility. But
another option could be add another protocol for slot get/set? I think
manipulate map/red slots on TT is a very useful feature especially in sharing
environment (like HBase region server live with TT), so may be deserved to add
another protocol?
> Backport YARN-40 to support listClusterNodes and printNodeStatus in command
> line tool
> -------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4944
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4944
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Affects Versions: 1.1.1
> Reporter: Binglin Chang
> Priority: Minor
>
> support listClusterNodes and printNodeStatus in command line tool is useful
> for admin to create certain automation tools, this can also used by
> MAPREDUCE-4900 to get TaskTracker name so can set TT's slot dynamically
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