Till Rohrmann created FLINK-9413:
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             Summary: Tasks can fail with PartitionNotFoundException if 
consumer deployment takes too long
                 Key: FLINK-9413
                 URL: https://issues.apache.org/jira/browse/FLINK-9413
             Project: Flink
          Issue Type: Bug
          Components: Distributed Coordination
    Affects Versions: 1.5.0, 1.6.0
            Reporter: Till Rohrmann


{{Tasks}} can fail with a {{PartitionNotFoundException}} if the deployment of 
the producer takes too long. More specifically, if it takes longer than the 
{{taskmanager.network.request-backoff.max}}, then the {{Task}} will give up and 
fail.

The problem is that we calculate the {{InputGateDeploymentDescriptor}} for a 
consuming task once the producer has been assigned a slot but we do not wait 
until it is actually running. The problem should be fixed if we wait until the 
task is in state {{RUNNING}} before assigning the result partition to the 
consumer.



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