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  1. Core Server
  2. SERVER-46432

Enable mapReduce out to collection to run on secondaries

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    • Icon: Task Task
    • Resolution: Unresolved
    • Icon: Major - P3 Major - P3
    • None
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    • Query Execution
    • v4.4
    • Query 2020-04-06, Query 2020-04-20

    Description

      Note that mapReduce will not work as written with secondary read preference on a replica set because all mapReduce commands will be unconditionally sent to the primary. Besides test coverage, this ticket will remove this check and also update the following test as well.

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            backlog-query-execution Backlog - Query Execution
            mihai.andrei@mongodb.com Mihai Andrei
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              Created:
              Updated: