big-doudou commented on PR #9182:
URL: https://github.com/apache/hudi/pull/9182#issuecomment-1653037352

   StreamWriteOperatorCoordinator#handleBootstrapEvent() -> initInstant() -> 
startInstant() -> this.writeClient.startCommit() -> 
tableServiceClient.rollbackFailedWrites() -> rollbackFailedWrites() -> 
rollback()
   so TM need send bootstrap event to rollback old instant.Otherwise, two files 
with the same bucket id will be generated under the current partition


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