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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

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.7.0, 4.4.2
    • None
    • Fully Compatible
    • Execution Team 2020-07-27, Execution Team 2020-08-10
    • 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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        Issue Links

          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.
          • Backlog

          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

              fausto.leyva@mongodb.com Fausto Leyva
              fausto.leyva@mongodb.com Fausto Leyva
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              Dates

                Created:
                Updated:
                Resolved: