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https://issues.apache.org/jira/browse/FLINK-4471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gyula Fora closed FLINK-4471.
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    Resolution: Won't Fix

> Rocks backend fully async snapshot restore fails with custom serializers
> ------------------------------------------------------------------------
>
>                 Key: FLINK-4471
>                 URL: https://issues.apache.org/jira/browse/FLINK-4471
>             Project: Flink
>          Issue Type: Bug
>          Components: State Backends, Checkpointing, Streaming
>    Affects Versions: 1.1.0
>            Reporter: Gyula Fora
>            Assignee: Gyula Fora
>            Priority: Critical
>
> The StateDescriptor is not deserialized with the usercode classloader. This 
> makes restore fail with NoClassDefFound error if the user uses custom type 
> serializers:
> https://github.com/apache/flink/blob/master/flink-contrib/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBStateBackend.java#L583



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