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https://issues.apache.org/jira/browse/PIG-3222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13620211#comment-13620211
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Feng Peng commented on PIG-3222:
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[~daijy], I am using a simple wrapper for HCatStorer (similar to the attached
PigStorerDemo.java, will attach the exact code later) so that we can separate
the function calls by different instantiations.
In setStoreLocation(testdb.samples,Job@1817929566), "testdb.samples" is the
location string. In my trace, the values in the () are the parameters for the
call. The left most [N] indicates the unique instantiation id.
Let me rerun the query using HCatStorer directly to reproduce the issue.
> New UDFContextSignature assignments in Pig 0.11 breaks HCatalog.HCatStorer
> ---------------------------------------------------------------------------
>
> Key: PIG-3222
> URL: https://issues.apache.org/jira/browse/PIG-3222
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.11
> Reporter: Feng Peng
> Labels: hcatalog
> Attachments: hcat.trace, PigStorerDemo.java
>
>
> Pig 0.11 assigns different UDFContextSignature for different invocations of
> the same load/store statement. This change breaks the HCatStorer which
> assumes all front-end and back-end invocations of the same store statement
> has the same UDFContextSignature so that it can read the previously stored
> information correctly.
> The related HCatalog code is in
> https://svn.apache.org/repos/asf/incubator/hcatalog/branches/branch-0.5/hcatalog-pig-adapter/src/main/java/org/apache/hcatalog/pig/HCatStorer.java
> (the setStoreLocation() function).
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