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https://issues.apache.org/jira/browse/TOREE-389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luciano Resende resolved TOREE-389.
-----------------------------------
       Resolution: Fixed
         Assignee: Ryan Blue
    Fix Version/s: 0.2.0

Closing as PR #108 is already merged. Please reopen if there are any other 
items still in progress.

> Scala interpreter hangs if Spark is referenced before it is bound
> -----------------------------------------------------------------
>
>                 Key: TOREE-389
>                 URL: https://issues.apache.org/jira/browse/TOREE-389
>             Project: TOREE
>          Issue Type: Bug
>            Reporter: Ryan Blue
>            Assignee: Ryan Blue
>             Fix For: 0.2.0
>
>
> Some users run cells in a notebook before the kernel is finished starting. 
> The messages are queued and run after the KernelMessageRelay is enabled, but 
> any messages that reference {{spark}} or bound variables cause IMain to throw 
> an exception. That exception causes the interpreter to hang.
> It seems odd that a missing variable reference causes IMain to throw an 
> exception, so there may be a threading issue, a race between binding 
> {{spark}} and the cell that references it.
> The problem can be avoided by moving {{postInit}} tasks into init.



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