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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2011/09/06 21:09:12 UTC
[jira] [Commented] (PIG-2266) bug with input file joining
optimization in Pig
[ https://issues.apache.org/jira/browse/PIG-2266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13098275#comment-13098275 ]
Daniel Dai commented on PIG-2266:
---------------------------------
That seems reasonable. Can you wrap up a patch?
> bug with input file joining optimization in Pig
> -----------------------------------------------
>
> Key: PIG-2266
> URL: https://issues.apache.org/jira/browse/PIG-2266
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.9.0
> Reporter: Joseph Adler
>
> In src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/MRCompiler.java, the function hasTooManyInputFiles instantiated a LoadFunc instance, then calls setLocation before calling setUDFContextSignature. This is inconsistent with the documentation for the LoadFunc interface (see http://pig.apache.org/docs/r0.9.0/api/org/apache/pig/LoadFunc.html#setUDFContextSignature(java.lang.String)). (We've written UDFs that assume that setUDFContextSignature is called first.)
> I think you can fix this by adding
> loader.setUDFContextSignature(ld.getSignature());
> Before
> loader.setLocation(location, job);
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