[KAFKA-5439] Add checks in integration tests to verify that threads have been shutdown

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Assignee: Rajini Sivaram
• Reporter: Rajini Sivaram
• Created: 13/Jun/17 07:32
• Updated: 13/Jun/17 12:49
• Resolved: 13/Jun/17 12:48

Description

We have seen several test failures in integration tests due to threads being left behind because brokers, producers or ZooKeeper clients haven't been closed properly in tests. Add a check so that these failures can be caught sooner since transient failures caused by port reuse or update of static JAAS configuration are much harder to debug.

Issue Links

• links to: GitHub Pull Request #3314