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From "hyoungjunkim (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (TAJO-181) Improvmemt allocation policies empty disk scheduler
Date Fri, 13 Sep 2013 09:48:52 GMT

     [ https://issues.apache.org/jira/browse/TAJO-181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

hyoungjunkim reassigned TAJO-181:
---------------------------------

    Assignee: hyoungjunkim
    
> Improvmemt allocation policies empty disk scheduler
> ---------------------------------------------------
>
>                 Key: TAJO-181
>                 URL: https://issues.apache.org/jira/browse/TAJO-181
>             Project: Tajo
>          Issue Type: Improvement
>          Components: storage
>    Affects Versions: 0.2-incubating
>            Reporter: hyoungjunkim
>            Assignee: hyoungjunkim
>            Priority: Minor
>
> Current new StorageManager assigns to DiskScanScheduler with disk id regardless of each
DiskScanScheduler's queue size. This policy is the cause of poor performance. 
> If some DiskScanScheduler is empty, the DiskScanScheduler is assigned a priority.

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