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From "Vivek Ratan (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4445) Wrong number of running map/reduce tasks are displayed in queue information.
Date Mon, 10 Nov 2008 04:58:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12646171#action_12646171
] 

Vivek Ratan commented on HADOOP-4445:
-------------------------------------

bq. then we can show running-tasks info in cluster-summary and scheduled-tasks info in the
scheduler's info and get away with the issue.

I personally don't think you want to introduce such fine-grained differences. Having the user
think of 'running' tasks and 'scheduled' tasks separately seems unnecessary as it doesn't
buy them much. If the numbers are off by a bit, that doesn't seem so bad, as long as you can
maybe add a little disclaimer, or provide an explanation in a FAQ. My guess is, users will
really be concerned about the stats for their queue. As long as they can see whether a queue
is fully occupied or not, and where they are in the waiting list, they should be fine. 

> Wrong number of running map/reduce tasks are displayed in queue information.
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-4445
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4445
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>    Affects Versions: 0.19.0
>         Environment: Hadoop r705159, Queue=default, GC=100% MapCapacity=ReduceCapacity=212
>            Reporter: Karam Singh
>            Assignee: Sreekanth Ramakrishnan
>
> Wrong number of running map/reduce tasks are displayed in queue information.

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