Accumulo
  1. Accumulo
  2. ACCUMULO-2645

tablet stuck unloading, and problem is hard to diagnose

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 1.4.4
    • Fix Version/s: 1.6.1, 1.7.0
    • Component/s: tserver
    • Labels:
    • Environment:

      very large production cluster, CDH3u5

      Description

      • master failed to balance
      • custom balancer refused to balance while migrations were in place
      • tablet server was not unloading the tablet
      • tablet server was otherwise serving tablets, providing status
      • memory dump determined that there were 21K UnloadTabletHandler objects
      • jstack showed UnloadTabletHandler in Tablet.completeClose, line 2674
      • the last print of the debug "completeClose(safeState=true, completeClose=true) occured 9 days ago
      • there was a query that had been running for 9 days

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            • Assignee:
              Eric Newton
              Reporter:
              Eric Newton
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