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Posted to dev@tajo.apache.org by "hyoungjunkim (JIRA)" <ji...@apache.org> on 2013/09/13 11:48:52 UTC

[jira] [Assigned] (TAJO-181) Improvmemt allocation policies empty disk scheduler

     [ 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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