dhruvilshah3 opened a new pull request #10217:
URL: https://github.com/apache/kafka/pull/10217


   MM2 creates new topics on the destination cluster with default 
configurations. It has an async periodic task to refresh topic configurations 
from the source to destination. However, this opens up a window where the 
destination cluster has data produced to it with default configurations. In the 
worst case, this could case data loss if the destination cluster is created 
without the right retention or cleanup policy configurations, for example.
   
   This patch fixes the above issue by ensuring that the right configurations 
are supplied to the `AdminClient#createTopics` when MM2 creates topics on the 
destination cluster. 
   
   ### Committer Checklist (excluded from commit message)
   - [ ] Verify design and implementation 
   - [ ] Verify test coverage and CI build status
   - [ ] Verify documentation (including upgrade notes)
   


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