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  1. Node.js Driver
  2. NODE-5960

Incorporate on-demand BSON API into driver

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    • Type: Icon: Task Task
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: None
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      1. What would you like to communicate to the user about this feature?
      2. Would you like the user to see examples of the syntax and/or executable code and its output?
      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

      Use Case

      As a Node.js Driver engineer
      I want to spread CPU intensive work across event loop ticks
      So that Node.js applications remain as responsive as possible

      User Impact

      • Currently the driver parses all BSON at once. The goal is to experiment with parsing only the BSON needed for driver functionality (ok:1/0, errmsg, cursor.id) and parse the rest (firstBatch, nextBatch) as a cursor is iterated.

      Dependencies

      Unknowns

      • None

      Acceptance Criteria

      Implementation Requirements

      • PoC parsing partial cursor results and parsing the user data as we iterate
      • Measure the performance effects of this change
      • Answer the following:
        • What are the performance gains?
        • How much BSON "parsing" logic belongs in the driver vs in BSON?

      Testing Requirements

      • Existing tests to ensure no regressions
      • Unit test conditions that enable partial parsing (only occurs for specific cursor commands)

      Documentation Requirements

      • None

      Follow Up Requirements

      • None

        1.
        		 Implement OnDemandDocument NODE-6055 Sub-task Closed Neal Beeken 6.6.0
        2.
        		 Implement MongoDBResponse NODE-6056 Sub-task Closed Neal Beeken 6.6.0
        3.
        		 Implement CursorResponse NODE-6057 Sub-task Closed Neal Beeken 6.6.0
        4.
        		 Clean up onDemand BSON API NODE-6059 Sub-task Closed Neal Beeken bson-6.6.0
        5.
        		 signature on cluster time interface is optional NODE-6066 Sub-task Closed Neal Beeken 6.6.0
        6.
        		 Use CursorResponse for all cursors NODE-6136 Sub-task Backlog Neal Beeken  
        7.
        		 Undo CursorResponse for FindCursor for 6.6.0 NODE-6146 Sub-task Closed Neal Beeken 6.6.0

            Assignee:
            neal.beeken@mongodb.com Neal Beeken
            Reporter:
            neal.beeken@mongodb.com Neal Beeken
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              Created:
              Updated: