[KAFKA-15393] MirrorMaker2 integration tests are shutting down uncleanly

• Type: Test
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.3.3, 3.6.0, 3.4.2, 3.5.2
• Component/s: mirrormaker
• Assignee: Greg Harris
• Reporter: Greg Harris
• Created: 23/Aug/23 01:05
• Updated: 24/Aug/23 19:52
• Resolved: 24/Aug/23 19:52

Description

The MirrorConnectorsBaseIntegrationTest and it's derived test classes often shut down uncleanly. An unclean shutdown takes longer than a clean shutdown, because the shutdown must wait for timeouts to elapse.

It appears that during the teardown, the MirrorConnectorsBaseIntegrationTest deletes all of the topics on the EmbeddedKafkaCluster. This causes extremely poor behavior for the connect worker (which is unable to access internal topics) and for the connectors (which get stuck on their final offset commit refreshing metadata and then get cancelled).

The EmbeddedKafkaCluster is not reused for the next test, so cleaning the topics is unnecessary.

Issue Links

• links to: GitHub Pull Request #14278