[jira] [Created] (FLINK-4603) KeyedStateBackend cannot restore user code classes

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-4603:
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             Summary: KeyedStateBackend cannot restore user code classes
                 Key: FLINK-4603
                 URL: https://issues.apache.org/jira/browse/FLINK-4603
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing
    Affects Versions: 1.2.0
            Reporter: Till Rohrmann
            Priority: Blocker
             Fix For: 1.2.0


A user reported that he cannot restore keyed state which contains user code classes. I suspect that we don't use the user code class loader to deserialize the state.

The solution seems to be to forward the user code class loader to the {{KeyedStateBackends}} when restoring state.



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