[KAFKA-15109] ISR shrink/expand issues on ZK brokers during migration - ASF JIRA

Attach files

Attach Screenshot

Voters

Watch issue

Watchers

Create sub-task

Link

Clone

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Bug
Status: Resolved
Priority: Critical
Resolution: Fixed
Affects Version/s: 3.6.0
Fix Version/s: 3.6.0
Component/s: kraft, replication
Labels:
None

Description

~~KAFKA-15021~~ introduced a new controller behavior that avoids increasing the leader epoch during the controlled shutdown scenario. This prevents some unnecessary thrashing of metadata and threads on the brokers and clients.

While a cluster is in a KIP-866 migration and has a KRaft controller with ZK brokers, we cannot employ this leader epoch bump avoidance. The ZK brokers must have the leader epoch bump in order for ReplicaManager to react to the LeaderAndIsrRequest.