HBase
  1. HBase
  2. HBASE-3679

Provide cost information associated with moving region(s)

    Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Implemented
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      In order for load balancer to make better decision, we need to establish cost model for moving region(s).
      One factor would be the number of active scanners on a particular region.
      This count is easy to maintain at HRegion level. instantiateInternalScanner() can increment the counter and RegionScanner.close() would decrement the count.

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            • Assignee:
              Unassigned
              Reporter:
              Ted Yu
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                Updated:
                Resolved:

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