[KAFKA-5125] controlled.shutdown.enable=true leads blocking some time during shutdown when the broker is the only remaining broker

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.10.1.1, 0.10.2.0
• Component/s: controller
• Environment: Ubuntu 16
• Assignee: Unassigned
• Reporter: Zeynep Arikoglu
• Created: 25/Apr/17 17:02
• Updated: 25/Apr/17 17:02

Description

The documentation clearly states 'Note that controlled shutdown will only succeed if all the partitions hosted on the broker have replicas' but
even if we have replication, when you try to shutdown the broker that is serving as the only remaining broker for a partition, you will end up blocking for some time if the controlled shutdown is set to true. Say we have two brokers and our topics are replicated. When we shutdown the first one, it will terminate gracefully with controlled shutdown set to true. When we shutdown the second one, it will block and would have to be killed forcefully after a minute or so.