dmvk opened a new pull request #17607:
URL: https://github.com/apache/flink/pull/17607


   This PR introduces idempotent transactions in 
`ZooKeeperStateHandleStore#addAndLock` method. In case of unstable connection 
we may actually retry transactions that have already succeeded and therefore 
encounter NodeAlreadyExists exception.
   
   https://issues.apache.org/jira/browse/FLINK-24543


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