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https://issues.apache.org/jira/browse/HADOOP-4576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sreekanth Ramakrishnan updated HADOOP-4576:
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Attachment: waitingjobs1.png
> Modify pending tasks count in the UI to pending jobs count in the UI
> --------------------------------------------------------------------
>
> Key: HADOOP-4576
> URL: https://issues.apache.org/jira/browse/HADOOP-4576
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/capacity-sched
> Affects Versions: 0.19.0
> Reporter: Hemanth Yamijala
> Assignee: Sreekanth Ramakrishnan
> Attachments: HADOOP-4576-1.patch, HADOOP-4576-2.patch,
> HADOOP-4576-3.patch, HADOOP-4576-4.patch, HADOOP-4576-5.patch,
> HADOOP-4576-6.patch, waitingjobs1.png
>
>
> The UI for capacity scheduler displays 'pending tasks' counts. However the
> capacity scheduler does not update these counts to be the actual values for
> optimization purposes, for e.g. to avoid walking all pending jobs on all
> heartbeats. Hence this information is not very accurate.
> Also, while 'running tasks' counts are useful to compare against capacities
> and limits, 'pending tasks' counts do not add too much user value. A better
> count to display would be the number of running and pending jobs.
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