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Posted to dev@pig.apache.org by "Daniel Dai (Commented) (JIRA)" <ji...@apache.org> on 2012/03/09 11:36:57 UTC
[jira] [Commented] (PIG-2576) Change in behavior for
UDFContext.getUDFContext().getJobConf() in front-end
[ https://issues.apache.org/jira/browse/PIG-2576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13225992#comment-13225992 ]
Daniel Dai commented on PIG-2576:
---------------------------------
This might hardly count as defect. But if we absolutely need to bring the old behavior, we shall clone UDFContext instead of passing reference.
> Change in behavior for UDFContext.getUDFContext().getJobConf() in front-end
> ---------------------------------------------------------------------------
>
> Key: PIG-2576
> URL: https://issues.apache.org/jira/browse/PIG-2576
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.9.3
> Reporter: Vivek Padmanabhan
> Attachments: PIG-2576_Script_UDF.txt
>
>
> We read a file in the UDF constructor. (The file is transferred to the compute nodes via distache)
> To avoid this case in the front-end while the script is in the compile stage,
> we differentiate between front end and back end execution depending upon a condition ( UDFContext.getUDFContext().getJobConf() == null )
> This was working till Pig 0.9.1, in the current Pig 0.9 version this is breaking.
> ie, If I have any 'fs' commands after the STORE statement, the GruntParser invokes the udf constructor again and the above condition check returns false causing errors.
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