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  1. Core Server
  2. SERVER-45992

InMemory engine startupwarnings confusing

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.9.0, 4.4.2, 4.2.11, 4.0.22
    • None
    • None
    • Fully Compatible
    • ALL
    • v4.4, v4.2, v4.0, v3.6
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      Run a mongod process with engine=inMemory and writeConcernMajorityJournalDefaul=true (default value).

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      Run a mongod process with engine=inMemory and writeConcernMajorityJournalDefaul=true (default value).
    • Execution Team 2020-10-19

    Description

      As a consequence of the changes in SERVER-44796 if you start a mongod with the engine=inMemory you get duplicate startup warnings and the one about the journal may be confusing:

      2020-02-05T18:07:30.855+0000 I REPL     [conn36] ** WARNING: This replica set node is running without journaling enabled but the
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          writeConcernMajorityJournalDefault option to the replica set config
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          is set to true. The writeConcernMajorityJournalDefault
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          option to the replica set config must be set to false
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          or w:majority write concerns will never complete.
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          In addition, this node's memory consumption may increase until all
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          available free RAM is exhausted.
      2020-02-05T18:07:30.855+0000 I REPL     [conn36]
      2020-02-05T18:07:30.855+0000 I REPL     [conn36]
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] ** WARNING: This replica set node is using in-memory (ephemeral) storage with the
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          writeConcernMajorityJournalDefault option to the replica set config
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          set to true. The writeConcernMajorityJournalDefault option to the
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          replica set config must be set to false
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          or w:majority write concerns will never complete.
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          In addition, this node's memory consumption may increase until all
      2020-02-05T18:07:30.855+0000 I REPL     [conn36] **          available free RAM is exhausted.
      

      Can we suppress the first warning shown in my example when using engine=inMemory to avoid confusion?

      Thanks.

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              gregory.noma@mongodb.com Gregory Noma
              emilio.scalise@mongodb.com Emilio Scalise
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                Updated:
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