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 [250] CLIENTAPP_COMMUNICATION_ERROR
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 Description
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During a run, the internal ClientApp process could not communicate with the SuperNode
ClientAppIo API.

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 How to Resolve
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Check the run output and the surrounding SuperNode and SuperExec process logs for the
underlying gRPC error. By default, these processes log to stdout/stderr; in
containerized deployments, inspect the relevant SuperNode and SuperExec pod/container
logs.

A likely cause is that the ClientApp process took too long to start, for example on a
very slow or overloaded system, causing a timeout error. If the logs are not enough to
diagnose the issue, contact the Flower team and include the relevant run, SuperNode, and
SuperExec/ClientApp logs.