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  1. Core Server
  2. SERVER-42478

Remove DB MODE_X locks from oplog application of create/createIndexes

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    Details

    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Backport Requested:
      v4.2
    • Steps To Reproduce:
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      Found by code inspection, no reproducer yet.

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      Found by code inspection, no reproducer yet.
    • Sprint:
      Execution Team 2019-09-09, Execution Team 2019-09-23

      Description

      In oplog application, there are still places (here and here) where we take MODE_X database locks. This could affect secondary read performance in presence of DDL operations on other collections in the same database.

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          is related to

          Task - A task that needs to be done. SERVER-53846 Clarify locking requirements in createCollectionForApplyOps

          • Major - P3 - Major loss of function.
          • Needs Scheduling

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              Assignee:
              daniel.gottlieb Daniel Gottlieb
              Reporter:
              geert.bosch Geert Bosch
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                Dates

                Created:
                Updated:
                Resolved: