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  1. Flink
  2. FLINK-13805

Bad Error Message when TaskManager is lost

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      When a TaskManager is lost, the job reports as the failure cause

      org.apache.flink.util.FlinkException: The assigned slot 6d0e469d55a2630871f43ad0f89c786c_0 was removed.
      

      That is a pretty bad error message, as a user I don't know what that means. Sounds like it could simply refer to internal book keeping, maybe some rebalancing or so.
      You need to know a lot about Flink to understand that this means actually "TaskManager failure".

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            trohrmann Till Rohrmann
            sewen Stephan Ewen
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