[jira] [Created] (FLINK-5291) Ensure backwards compatibility of the hashes used to generate JobVertexIds

[Shang Yuanchun (Jira)]

Stefan Richter created FLINK-5291:
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             Summary: Ensure backwards compatibility of the hashes used to generate JobVertexIds
                 Key: FLINK-5291
                 URL: https://issues.apache.org/jira/browse/FLINK-5291
             Project: Flink
          Issue Type: Sub-task
            Reporter: Stefan Richter
            Assignee: Stefan Richter


The way in which hashes for JobVertexIds are generated changed between Flink 1.1 and 1.2 (parallelism was considered for the hash in 1.1). We need to be backwards compatible to old JobVertexId generation so that we can still assign state from old savepoints.



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