[TAJO-181] Improvement of disk scheduler policy for straggler disk

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.2-incubating
• Fix Version/s: 0.2-incubating
• Component/s: Storage
• Assignee: Hyoungjun Kim
• Reporter: Hyoungjun Kim
• Created: 13/Sep/13 09:47
• Updated: 14/Sep/13 08:55
• Resolved: 14/Sep/13 08:49

Description

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.