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From "Scott Carey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-3015) Rewrite of AvroStorage
Date Tue, 08 Jan 2013 09:00:18 GMT

    [ https://issues.apache.org/jira/browse/PIG-3015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13546714#comment-13546714
] 

Scott Carey commented on PIG-3015:
----------------------------------

Try corrupting the file at a point inside the data block instead of inside
the sync marker.  The ability to recover from a corrupted file was added
in response to corrupted data, not corrupted sync.




                
> 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: PIG-3015-2.patch, PIG-3015-3.patch, PIG-3015-4.patch, PIG-3015-5.patch,
TestInput.java, Test.java
>
>
> 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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