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  1. Core Server
  2. SERVER-32825

Add the infrastructure for upgrade/downgrade of V2Unique indexes

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.0.0-rc0
    • Component/s: Storage
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Sprint:
      Storage Non-NYC 2018-03-12, Storage Non-NYC 2018-03-26, Storage Non-NYC 2018-04-09, Storage Non-NYC 2018-04-23, Storage Non-NYC 2018-05-07, Storage Non-NYC 2018-05-21
    • Story Points:
      3

      Description

      Addition of new index format allows use of both V2 and V2Unique format. Initially we would add a gating variable to select the unique index format. Switch to FCV as the deciding factor for which format should be used.

      • Setting FCV=4.2 will cause all unique indexes to be updated to V2Unique. Do not update the content of the indexes.
      • Having FCV=4.0 would create older V2 format indexes

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              Assignee:
              neha.khatri Neha Khatri
              Reporter:
              neha.khatri Neha Khatri
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                Updated:
                Resolved: