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Posted to issues@flink.apache.org by "Gyula Fora (JIRA)" <ji...@apache.org> on 2017/03/07 16:07:38 UTC

[jira] [Created] (FLINK-5985) Flink treats every task as stateful (making topology changes impossible)

Gyula Fora created FLINK-5985:
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             Summary: Flink treats every task as stateful (making topology changes impossible)
                 Key: FLINK-5985
                 URL: https://issues.apache.org/jira/browse/FLINK-5985
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing
    Affects Versions: 1.2.0
            Reporter: Gyula Fora
            Priority: Critical


It seems  that Flink treats every Task as stateful so changing the topology is not possible without setting uid on every single operator.

If the topology has an iteration this is virtually impossible (or at least gets super hacky)



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