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  1. Documentation
  2. DOCS-12969

4.2 won't start with MMAPv1 options

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    Description

      Description

      Before 4.2 MMAPv1 options used with WT were just ignored.

      In 4.2 the server won't start if MMAPv1 options are used:

      Error parsing command line: unrecognised option '--smallfiles'
      try '/bin/4.2.0/mongod --help' for more information
      

      We should document that in the release notes

      Scope of changes

      • Add a blurb to the 4.4 release notes on MMAPv1 removal. Spitballing:

      "4.4 mongod or mongos cannot start with MMAPv1 options specified to the command line or configuration file "

      • Add blurb to 4.0 -> 4.2 upgrade notes reminding users to remove MMAPv1 options from the command line or configuration file as part of upgrade
        • Upgrade note needs to be in master and 4.0.

      Impact to Other Docs

      MVP (Work and Date)

      Resources (Scope or Design Docs, Invision, etc.)

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            andrew.feierabend@mongodb.com Andrew Feierabend (Inactive)
            renato.riccio@mongodb.com Renato Riccio
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            Dates

              Created:
              Updated:
              Resolved:
              4 years, 19 weeks ago