jvarenina opened a new pull request, #7623: URL: https://github.com/apache/geode/pull/7623
When you configure a parallel gateway-sender on a partitioned region, the parallel gateway-sender queue is created as a collocated region of the primary data partition region. Because of that, the set of primary buckets IDs of the data region is the same as the primary bucket IDs of the queue region. The aforementioned is also valid for the secondary buckets. When you alter the region to remove the gateway-sender, you only remove the connection between the region and the gateway-sender. Still, the parallel gateway-sender queue region remains on servers. Recreating the region again with the same gateway sender results in new data buckets distributed differently across the servers. The same server will create the queue bucket after the colocated region bucket, but the previous queue buckets will remain in the system. The newly created queue bucket will be marked as a secondary even though its accompanying region bucket is primary. Therefore some events will not replicate to the remote site. The solution is to update the documentation with a warning that the removed parallel gateway-sender should not be used on the new region that is not colocated with the previously attached region. <!-- Thank you for submitting a contribution to Apache Geode. --> <!-- In order to streamline the review of the contribution we ask you to ensure the following steps have been taken: --> ### For all changes: - [ ] Is there a JIRA ticket associated with this PR? Is it referenced in the commit message? - [ ] Has your PR been rebased against the latest commit within the target branch (typically `develop`)? - [ ] Is your initial contribution a single, squashed commit? - [ ] Does `gradlew build` run cleanly? - [ ] Have you written or updated unit tests to verify your changes? - [ ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? <!-- Note: Please ensure that once the PR is submitted, check Concourse for build issues and submit an update to your PR as soon as possible. If you need help, please send an email to d...@geode.apache.org. --> -- 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: notifications-unsubscr...@geode.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org