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  1. Documentation
  2. DOCS-13787

Large Number Of Collections Section References Removed Configuration Option

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    • Icon: Doc Removal Doc Removal
    • Resolution: Won't Do
    • Icon: Trivial - P5 Trivial - P5
    • Server_Docs_20231030
    • 4.2.0
    • manual, Server
    • None

    Description

      Description

      The section on large number of collections] states, "For each database, a single namespace file (i.e. <database>.ns) stores all meta-data for that database, and each index and collection has its own entry in the namespace file. MongoDB places limits on the size of namespace files."

      However, removed mmapv1 options] states that the ability to change nssize was removed as it is a MMAPv1-specific configuration option.

      Additionally, the 4.0 version of the docs say that WiredTiger is not subject to a limitation in the size of the namespace file]. I'm unsure as to why this section was removed for 4.2 as there is a considerable amount of information on the internet about MongoDb's limit on the number of collections from the days of MMAPv1 - most of that information does not specify that it does not apply to WiredTiger.

      So, I'm assuming that there's no explicit limit (although I'm sure a practical limit exists). If that's the case, the section about large numbers of collections should be updated.

       

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            Unassigned Unassigned
            collinscangarella@gmail.com Collin Scangarella
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            Dates

              Created:
              Updated:
              1 year, 14 weeks, 2 days ago