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  1. Core Server
  2. SERVER-28268

Allow for collections with only immutable docs to reduce memory usage for snapshots in WT.

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    • Icon: New Feature New Feature
    • Resolution: Works as Designed
    • Icon: Major - P3 Major - P3
    • None
    • None
    • Storage
    • None
    • Storage Execution

    Description

      We have a number of collections whose documents are never modified. It seems like Mongodb should support a feature where a collection could be marked as "doc-immutable", meaning that documents are not updatable (but would be deletable). Then when performing queries, a snapshot would not be needed by WT to return query results. I would imagine that this could save a great deal of memory in the WT cache, especially for queries that bring back many documents.

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            backlog-server-execution Backlog - Storage Execution Team
            jimreitz James Reitz
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