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From "Xiao Kang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1674) Some new features for CapacityTaskScheduler
Date Tue, 06 Apr 2010 04:04:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853720#action_12853720
] 

Xiao Kang commented on MAPREDUCE-1674:
--------------------------------------

Details as follows:

# support queue priority : higher priority queue get capacity first

# support queue refresh : reload queue configuration at run time, including change queue properties
and adding/removing queues

# queue over capacity controlled : add a queue property to indicate whether this queue can
use more slot than its configured capacity

# seperate web page for capacity-scheduler : just as fair-scheduler, a new web page dadicated
for capacity-scheduler is added

# job capacity : allowing user to specify per job map/reduce capacity both in cluster/tasktracker
level

# job initialization : do not initialize a job if it will not get a chance to run if initialized


> Some new features for CapacityTaskScheduler
> -------------------------------------------
>
>                 Key: MAPREDUCE-1674
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1674
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: contrib/capacity-sched
>    Affects Versions: 0.20.2
>            Reporter: Xiao Kang
>
> Some new features for CapacityTaskScheduler developed at Baidu.

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