Aggregation with $out fails on 8.1.0, with replica-set

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    • Type: Bug
    • Resolution: Won't Fix
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: None
    • Query Execution
    • ALL
    • QE 2024-05-27
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    • 3
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      The Ruby, Java, and Python drivers (at least) have noticed test failures when running an aggregation with $out against server version 8.1.0, in a replica-set topology. The failures do not happen against a sharded topology.

      The error message is: "PlanExecutor error during aggregation :: caused by :: indexes of target collection db0.coll1 changed during processing".

      The only indexes are those on _id, and there are no concurrent operations running.

      A failing task for the Java driver, with attached server logs, can be found here: https://spruce.mongodb.com/task/mongo_java_driver_tests_jdk_secure__version~latest_os~linux_topology~replicaset_auth~auth_ssl~ssl_jdk~jdk21_test_1816e3cc9bef5e2321505f1d2b087fe90996dad5_24_04_30_17_57_13/tests?execution=0&sortBy=STATUS&sortDir=ASC

      A client-side log for the Ruby driver, of issued commands during one of these failing tests, is attached to this ticket.

        1. crud-aggregate-test.log
          13 kB

              Assignee:
              Ivan Fefer
              Reporter:
              Jamis Buck
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                Created:
                Updated:
                Resolved: