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Posted to dev@flink.apache.org by "Till Rohrmann (Jira)" <ji...@apache.org> on 2020/02/05 07:35:00 UTC

[jira] [Created] (FLINK-15911) Flink does not work over NAT

Till Rohrmann created FLINK-15911:
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             Summary: Flink does not work over NAT
                 Key: FLINK-15911
                 URL: https://issues.apache.org/jira/browse/FLINK-15911
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
    Affects Versions: 1.10.0
            Reporter: Till Rohrmann
             Fix For: 1.11.0


Currently, it is not possible to run Flink over network address translation. The problem is that the Flink processes do not allow to specify separate bind and external ports. Moreover, the {{TaskManager}} tries to resolve the given {{taskmanager.host}} which might not be resolvable. This breaks NAT or docker setups where the external address is not resolvable from within the container/internal network.



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