[KAFKA-928] new topics may not be processed after ZK session expiration in controller

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Component/s: controller
• Assignee: Neha Narkhede
• Reporter: Jun Rao
• Created: 01/Jun/13 01:43
• Updated: 03/Jun/13 21:09
• Resolved: 03/Jun/13 21:07

Description

When controller loses its ZK session, it calls partitionStateMachine.shutdown in SessionExpirationListener, which marks the partitionStateMachine as down. However, when the controller regains its controllership, it doesn't mark partitionStateMachine as up. In TopicChangeListener, we only process new topics if the partitionStateMachine is marked up.