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https://issues.apache.org/jira/browse/MAPREDUCE-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12788026#action_12788026
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Vinod K V commented on MAPREDUCE-1279:
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Adding a new API {{Cluster.getRootQueues(boolean giveJobsInfo)}} which will
let JT return _only_ queue-objects without the jobs' information will help.
> "mapred queue -list" will unnecessarily download JobStatus information also
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-1279
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1279
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client, jobtracker
> Reporter: Vinod K V
>
> "mapred queue -list" does a Cluster.getRootQueues() and thus will download
> the entire queue-hierarchy _including_ all the (potentially large number of)
> jobs' information. This is not needed and avoiding it can significantly lower
> the data transferred from JT.
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