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Posted to dev@tajo.apache.org by "hyoungjunkim (JIRA)" <ji...@apache.org> on 2013/09/13 11:48:51 UTC

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

hyoungjunkim created TAJO-181:
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             Summary: 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
            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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