[KAFKA-3670] ControlledShutdownLeaderSelector should pick the preferred replica as the new leader, if possible

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.0.0
• Assignee: Ismael Juma
• Reporter: Jun Rao
• Reviewer: Jun Rao
• Created: 06/May/16 18:55
• Updated: 08/May/16 17:46
• Resolved: 08/May/16 17:46

Description

Currently, ControlledShutdownLeaderSelector selects an arbitrary in-sync replica as the new leader. This means that leader can change again to the preferred replica very quickly. It's better for ControlledShutdownLeaderSelector to select the preferred replica as the new leader, if it's in sync.