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https://issues.apache.org/jira/browse/PIG-4908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15297083#comment-15297083
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Daniel Dai commented on PIG-4908:
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+1. The "starts with cwd" check is very buggy. There are other situations such
as "xxx/.././" which will fail the match.
> JythonFunction refers to Oozie launcher script absolute path
> ------------------------------------------------------------
>
> Key: PIG-4908
> URL: https://issues.apache.org/jira/browse/PIG-4908
> Project: Pig
> Issue Type: Bug
> Reporter: Rohini Palaniswamy
> Assignee: Rohini Palaniswamy
> Fix For: 0.16.0
>
> Attachments: PIG-4908-1.patch
>
>
> We had a scenario where a user had multiple udfs all named udfs.py.
> JythonFunction was referring to the absolute localized path of udfs.py in the
> Oozie launcher. Tasks which ran on a node and which had a different version
> of udfs.py localized to same path (hashcode conflict) as the Oozie launcher
> failed. We should be referring to relative path of the files. The current
> code check is the canonical path starts with cwd, but that does not work as
> the files are downloaded to a different location and symlinked to the current
> working directory of the task attempt.
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