[KAFKA-10263] Do not create standbys for those revoking active tasks if it is not stateful

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: new-streams-runtime-should-fix
• Assignee: Guozhang Wang
• Reporter: Guozhang Wang
• Created: 10/Jul/20 00:35
• Updated: 02/Mar/22 01:35

Description

Today in StreamsPartitionAssignor, if an intended active tasks is not yet revoked from the old owner we would not give it to the newly assigned owner, but instead we would assign it as a standby task to the new owner to let it start restoring a bit early.

However, if that task is not stateful, then there's no point trying to let it restore at all. This should be avoided in the assignor.

Issue Links

• links to: GitHub Pull Request #9005