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  1. Core Server
  2. SERVER-49507

Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.7.0, 4.4.2
    • Component/s: None
    • Labels:
    • Backwards Compatibility:
      Fully Compatible
    • Sprint:
      Execution Team 2020-07-27, Execution Team 2020-08-10
    • Linked BF Score:
      40

      Description

      Currently, dumpInsertsFromBulk populates a set of RecordIds (in memory) which contain duplicate unique keys.

       

      The duplicate record ids are iterated through, moved to a lost_and_found collection and deleted. 

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          related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-51593 Index build bulk builder does not handle WriteConflictExceptions

          • Major - P3 - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-39562 Repair should handle duplicate unique index keys

          • Major - P3 - Major loss of function.
          • Closed

            Activity

              People

              Assignee:
              fausto.leyva Fausto Leyva
              Reporter:
              fausto.leyva Fausto Leyva
              Participants:
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                Dates

                Created:
                Updated:
                Resolved: