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  1. Core Server
  2. SERVER-26898

_migrateClone may hold WT snapshot for a long time

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: 3.1.8, 3.2.0, 3.2.10, 3.4.0-rc2
    • Fix Version/s: 3.2.11, 3.4.0-rc3
    • Component/s: Sharding
    • Labels:
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Backport Completed:

      Description

      This _migrateClone ran for about half an hour, but numYields is 0.

      2016-11-02T14:22:17.136+0000 I COMMAND [conn4545837] command admin.$cmd command: _migrateClone { _migrateClone: 1, sessionId: "699910aecbf021343ba5984d0c6cd5c5" } keyUpdates:0 writeConflicts:0 numYields:0 reslen:16773886 locks:{ Global: { acquireCount: { r: 8300 } }, Database: { acquireCount: { r: 4150 } }, Collection: { acquireCount: { r: 4150 } } } protocol:op_command 1709840ms
      

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                Updated:
                Resolved: