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https://issues.apache.org/jira/browse/FLINK-2669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14744914#comment-14744914
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Stephan Ewen commented on FLINK-2669:
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The seializability of the execution graph is tricky right now.
It is properly serializable after calling {{prepareForArchiving()}}, and can be
stored serialized. It is not serializable before.
> Execution contains non-serializable field
> -----------------------------------------
>
> Key: FLINK-2669
> URL: https://issues.apache.org/jira/browse/FLINK-2669
> Project: Flink
> Issue Type: Bug
> Components: Distributed Runtime
> Affects Versions: master, 0.9.1
> Reporter: Ufuk Celebi
> Priority: Minor
>
> Execution is {{Serializable}}, but non-transient field {{assignedResource}}
> of type {{SimpleSlot}} is not.
> I've noticed this while sending a {{JobManagerMessages.RequestJob}} to a job
> manager, which returns the {{ExecutionGraph}}.
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