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https://issues.apache.org/jira/browse/PIG-3844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park resolved PIG-3844.
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Resolution: Fixed
Fix Version/s: 0.13.0
Committed to trunk. Thank you Akihiro!
> Make ScriptState InheritableThreadLocal for threads that need it
> ----------------------------------------------------------------
>
> Key: PIG-3844
> URL: https://issues.apache.org/jira/browse/PIG-3844
> Project: Pig
> Issue Type: Improvement
> Reporter: Akihiro Matsukawa
> Assignee: Akihiro Matsukawa
> Fix For: 0.13.0
>
> Attachments: PIG-3844.patch
>
>
> I have a PPNL that is forked off the main thread so that its operations does
> not block pig from continuing to run. This PPNL needs the ScriptState, but is
> not able to get it in pig13 because the ScriptState is ThreadLocal.
> In pig12, this worked because there was logic to start a new ScriptState on
> ScriptState.get() which was removed in PIG-3525
> (https://reviews.apache.org/r/15634).
> My proposal is to change ScriptState to be InheritableThreadLocal, so that
> any new child threads that are spawned will have a copy of it. I have a
> pretty limited understanding of pig, but I do not see anything that this
> proposed change would break.
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