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MongoDB | 2659214
Aggregation with $out fails on 8.1.0, with replica-set
Last update date:
5/1/2024
Affected products:
MongoDB Server
Affected releases:
No affected releases provided.
Fixed releases:
No fixed releases provided.
Description:
Info
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.
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