[KAFKA-4445] PreferredLeaderElectionCommand should query zk only once per topic

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.10.1.0
• Fix Version/s: 0.10.2.0
• Assignee: Dong Lin
• Reporter: Dong Lin
• Created: 25/Nov/16 06:06
• Updated: 07/Dec/16 18:10
• Resolved: 07/Dec/16 18:10

Description

Currently PreferredLeaderElection will query zookeeper once for every partition that are included in the preferred leader election. This is very inefficient and makes the preferred leader election script slow. It should only query zookeeper once per topic.

In addition, the script currently reports that the preferred leader election is successfully even if some partitions are not found in the zookeeper.

Issue Links

• links to: GitHub Pull Request #2170