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https://issues.apache.org/jira/browse/PIG-3226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629873#comment-13629873
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Mathias Herberts commented on PIG-3226:
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The Groovy script engine needs a file path to be able to interpret the file.
The easiest way I've found to provide that is to retrieve the script as stream
and then create a temp file.
> Groovy UDF support may fail to load script under some circumstances
> -------------------------------------------------------------------
>
> Key: PIG-3226
> URL: https://issues.apache.org/jira/browse/PIG-3226
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.11, 0.11.1
> Reporter: Mathias Herberts
> Assignee: Mathias Herberts
> Attachments: PIG-3226.patch, PIG-3226.patch-2
>
>
> When running in M/R mode, scripts may fail to load, this is due to the
> GroovyScriptEngine looking for the script under the attempt's current working
> dir which does not contain the script.
> The attached patch fixes that by copying the script to a place where
> GroovyScriptEngine will be able to find it.
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