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https://issues.apache.org/jira/browse/FLINK-7041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069803#comment-16069803
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ASF GitHub Bot commented on FLINK-7041:
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Github user tzulitai commented on the issue:
https://github.com/apache/flink/pull/4232
Ah scratch that, perhaps the `CheckpointSettingsSerializableTest` is
sufficient.
> Deserialize StateBackend from JobCheckpointingSettings with user classloader
> ----------------------------------------------------------------------------
>
> Key: FLINK-7041
> URL: https://issues.apache.org/jira/browse/FLINK-7041
> Project: Flink
> Issue Type: Bug
> Components: DataStream API, Distributed Coordination, State
> Backends, Checkpointing
> Affects Versions: 1.3.0, 1.3.1
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Priority: Blocker
> Fix For: 1.3.2
>
>
> A user ran into the problem that the {{SubmitJob}} message is not
> (de)serialisable if it contains custom RocksDB options (or a custom state
> backend): [1]
> The problem is that {{SubmitJob}} contains a {{JobGraph}} which contains
> {{JobCheckpointingSettings}} which contains a {{StateBackend}}. This
> {{StateBackend}} potentially has user code and therefore can only be
> deserialised with the user classloader.
> This issue is mostly identical to FLINK-6531.
> [1]
> https://lists.apache.org/thread.html/69bb573787258ab34c3dc56ac155052f099d75e62d805f463bde5621@%3Cuser.flink.apache.org%3E
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