rdhabalia opened a new pull request, #20351: URL: https://github.com/apache/pulsar/pull/20351
### Motivation Right now, when broker marks topic migrated during blue-green cluster migration then broker disconnects consumers of the subscriptions once it reaches end of managed-leger data and consumer will be redirected to green cluster. However, if consumer is connected to topic without any backlog then consumer stays connected and broker didn't trigger consumer migration or it delays newly connected consumers which are eligible to redirect to new green cluster. Therefore, this PR makes sure that all the consumers of subscriptions which are not having backlog will be migrated and broker also checks topic migration when new consumer connects and notifies those consumers immediately if there is no backlog on that subscription. ### Result Consumers will be redirected to migrated cluster immediately if the subscription doesn't have any backlog. ### Does this pull request potentially affect one of the following parts: <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. --> *If the box was checked, please highlight the changes* - [ ] Dependencies (add or upgrade a dependency) - [ ] The public API - [ ] The schema - [ ] The default values of configurations - [ ] The threading model - [ ] The binary protocol - [ ] The REST endpoints - [ ] The admin CLI options - [ ] The metrics - [ ] Anything that affects deployment ### Documentation <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. --> - [ ] `doc` <!-- Your PR contains doc changes. --> - [ ] `doc-required` <!-- Your PR changes impact docs and you will update later --> - [ ] `doc-not-needed` <!-- Your PR changes do not impact docs --> - [ ] `doc-complete` <!-- Docs have been already added --> ### Matching PR in forked repository PR in forked repository: <!-- ENTER URL HERE --> <!-- After opening this PR, the build in apache/pulsar will fail and instructions will be provided for opening a PR in the PR author's forked repository. apache/pulsar pull requests should be first tested in your own fork since the apache/pulsar CI based on GitHub Actions has constrained resources and quota. GitHub Actions provides separate quota for pull requests that are executed in a forked repository. The tests will be run in the forked repository until all PR review comments have been handled, the tests pass and the PR is approved by a reviewer. --> -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
