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From "Sreekanth Ramakrishnan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4576) Modify pending tasks count in the UI to pending jobs count in the UI
Date Tue, 18 Nov 2008 04:13:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Sreekanth Ramakrishnan updated HADOOP-4576:

    Attachment: HADOOP-4576-1.patch

Attaching patch, which displays running jobs and waiting jobs instead of running and waiting
task counts for maps and reduces.

Waiting jobs and running jobs are computed after getting all jobs which are present in the
scheduler and checking their status, this is done to incorporate changes which would be made
in [HADOOP-4513|https://issues.apache.org/jira/browse/HADOOP-4513]

> 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
>         Attachments: HADOOP-4576-1.patch
> 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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