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Posted to mapreduce-issues@hadoop.apache.org by "Sergey Tryuber (JIRA)" <ji...@apache.org> on 2013/05/20 09:35:17 UTC

[jira] [Updated] (MAPREDUCE-3859) CapacityScheduler incorrectly utilizes extra-resources of queue for high-memory jobs

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3859?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Tryuber updated MAPREDUCE-3859:
--------------------------------------

    Release Note: Fixed wrong CapacityScheduler resource allocation for high memory consumption jobs
          Status: Patch Available  (was: Open)

Fix is for MR1 only. Test + fix is in the patch.
                
> CapacityScheduler incorrectly utilizes extra-resources of queue for high-memory jobs
> ------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3859
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3859
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: capacity-sched
>    Affects Versions: 1.0.0
>         Environment: CDH3u1
>            Reporter: Sergey Tryuber
>            Assignee: Sergey Tryuber
>         Attachments: test-to-fail.patch.txt
>
>
> Imagine, we have a queue A with capacity 10 slots and 20 as extra-capacity, jobs which use 3 map slots will never consume more than 9 slots, regardless how many free slots on a cluster.

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