Ensure that commands and queries set slaveOk bit and readPreference

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    • Type: Bug
    • Resolution: Done
    • Priority: Critical - P2
    • 3.0.0
    • Affects Version/s: None
    • Component/s: Query Operations
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      Both queries and "query-like" commands require two things to enable proper application of a non-primary read preference:

      1. set slaveOk bit if slaveOk is set (deprecated) or ReadPreference.isSlaveOk().
      2. Wrap in $query and set $readPreference field (mongos only, and only if read preference is not primary or secondaryPreferred).

      Example of an integration test that should pass:

      class CountOperationSpecification {
    def 'should run on secondary'() {
        assumeTrue(isDiscoverableReplicaSet())

        given:
        def find = new Find().readPreference(ReadPreference.secondary())
        def countOperation = new CountOperation(getNamespace(), find, new DocumentCodec(), bufferProvider, session, true)

        when:
        int count = countOperation.execute()

        then:
        count == 0
    }
}

            Assignee:
            Unassigned
            Reporter:
            Jeffrey Yemin
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              Created:
              Updated:
              Resolved: