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  1. WiredTiger
  2. WT-4961

Checkpoints with cache overflow must keep history for reads

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.3.1, WT10.0.0, 4.0.14, 4.2.2
    • None
    • None
    • 8
    • Storage Engines 2019-07-29, Storage Engines 2019-08-12, Storage Engines 2019-08-26, Storage Engines 2019-09-09, Storage Engines 2019-09-23, Storage Engines 2019-10-07
    • v4.2, v4.0

    Description

      When a checkpoint executes with stable_timestamp > oldest_timestamp the history in between can be incorrectly discarded if cache overflow is engaged. This means that reads with timestamps between oldest and stable will see newer versions of data than they should.

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        1. 585802553.795249.jpg
          453 kB
          Michael Cahill

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              vamsi.krishna@mongodb.com Vamsi Boyapati
              michael.cahill@mongodb.com Michael Cahill
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              Dates

                Created:
                Updated:
                Resolved: