MoanasDaddyXu opened a new issue, #67092:
URL: https://github.com/apache/doris/issues/67092

   ## Problem
   
   [Row Binlog] 副本扩缩容/Repair/Balance 可打散 base 与 companion 共置并阻断后续写入
   
   ## Minimal reproduction path
   
   Use a local cluster with at least five backends and a ROW Binlog table. 
Record the base/companion placement, increase replica count or move only base 
replicas until both sides are individually healthy but their colocated replica 
intersection is below write quorum, then run an INSERT or Stream Load. Verify 
that repair or scheduling restores paired placement, or reports a clear 
recoverable placement state instead of failing later with a replica-quorum 
error.
   
   ## Expected result
   
   Replica repair and balancing preserve the required base/companion colocated 
quorum, or fail early with an actionable state.
   
   ## Source
   
   This report is a sanitized tracking record for Jira DORIS-28061. Internal 
hosts, paths, artifacts, build identifiers, and private logs are intentionally 
omitted.


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