[KAFKA-10779] Reassignment tool sets throttles incorrectly when overriding a reassignment

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0
• Assignee: Deng Ziming
• Reporter: Jason Gustafson
• Created: 01/Dec/20 01:28
• Updated: 07/Jan/21 23:11
• Resolved: 07/Jan/21 23:11

Description

The logic in `ReassignPartitionsCommand.calculateProposedMoveMap` assumes that adding replicas are not included in the replica set returned from `Metadata` or `ListPartitionReassignments`. This is evident in the test case `ReassignPartitionsUnitTest.testMoveMap`. Because of this incorrect assumption, the move map is computed incorrectly which can result in the wrong throttles being applied. As far as I can tell, this is only an issue when overriding an existing reassignment.

Issue Links

• links to: GitHub Pull Request #9807