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https://issues.apache.org/jira/browse/MAPREDUCE-653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841778#action_12841778
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Ravi Gummadi commented on MAPREDUCE-653:
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We need to experiment and check if this way of asking JobTracker for counters
from each map task will be a considerable overhead on JobTracker(and would this
make JobTracker heavily loaded serving these many requests, with lot more new
connections to JobTracker).
> distcp can support bandwidth limiting
> -------------------------------------
>
> Key: MAPREDUCE-653
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-653
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: distcp
> Reporter: Ravi Gummadi
> Assignee: Ravi Gummadi
> Attachments: d_bw.patch, d_bw.v1.patch, d_bw.v2.patch
>
>
> distcp should support an option for user to specify the bandwidth limit for
> the distcp job.
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