mumrah opened a new pull request, #13407: URL: https://github.com/apache/kafka/pull/13407
This patch adds the concepts of pre-migration mode to the KRaft controller. While in this mode, the controller will only allow certain write operations. The purpose of this is to disallow metadata changes when the controller is waiting for the ZK migration to complete. The following ControllerWriteEvent operations are permitted in pre-migration mode * completeActivation * maybeFenceReplicas * writeNoOpRecord * processBrokerHeartbeat * registerBroker * unregisterBroker Raft events and other controller events do not follow the same code path as ControllerWriteEvent, so they are not affected by this new behavior. TODO: * [ ] Add system test for upgrading from older KRaft version to 3.4, ensure we write the correct ZkMigrationStateRecord * [ ] Additional unit tests for completion event -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
