Modify pending tasks count in the UI to pending jobs count in the UI
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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
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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