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https://issues.apache.org/jira/browse/PIG-3015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park updated PIG-3015:
-------------------------------
Attachment: PIG-3015-11.patch
I got unit tests working with both hadoop 20 and 23. In fact, the problem was
very simple. The option parser code was not correct (i.e.
CommandLine.getOptionValue() takes the option name not the long option name.),
and thus, the "namespace" of output Avro files was not set properly.
What's surprised me was that how come this issue only showed up with hadoop23.
We need better test coverage.
PIG-3015-11.patch includes the following changes:
* Fixed the option parser code.
* Removed commented-out code.
* Added "with_dates.pig".
> Rewrite of AvroStorage
> ----------------------
>
> Key: PIG-3015
> URL: https://issues.apache.org/jira/browse/PIG-3015
> Project: Pig
> Issue Type: Improvement
> Components: piggybank
> Reporter: Joseph Adler
> Assignee: Joseph Adler
> Attachments: bad.avro, good.avro, PIG-3015-10.patch,
> PIG-3015-11.patch, PIG-3015-2.patch, PIG-3015-3.patch, PIG-3015-4.patch,
> PIG-3015-5.patch, PIG-3015-6.patch, PIG-3015-7.patch, PIG-3015-9.patch,
> PIG-3015-doc.patch, TestInput.java, Test.java, with_dates.pig
>
>
> The current AvroStorage implementation has a lot of issues: it requires old
> versions of Avro, it copies data much more than needed, and it's verbose and
> complicated. (One pet peeve of mine is that old versions of Avro don't
> support Snappy compression.)
> I rewrote AvroStorage from scratch to fix these issues. In early tests, the
> new implementation is significantly faster, and the code is a lot simpler.
> Rewriting AvroStorage also enabled me to implement support for Trevni (as
> TrevniStorage).
> I'm opening this ticket to facilitate discussion while I figure out the best
> way to contribute the changes back to Apache.
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