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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14309) Fix naming of classes in orc module to not conflict with standalone orc
Date Thu, 21 Jul 2016 23:56:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15388636#comment-15388636
] 

Owen O'Malley commented on HIVE-14309:
--------------------------------------

The names in org.apache.orc were internal names that were created as part of the split from
Hive. The users of Hive still use the traditional package name of org.apache.hadoop.hive.ql.io.orc.
I shouldn't have put any of the classes into the org.apache.orc package until ORC was ready
to release them, but I screwed up. I've looked through the source code for Spark, Storm, Flume,
Pig, and Oozie and no one is using the org.apache.orc classes and they using the original
org.apache.hadoop.hive.ql.io.orc class names. 

Unfortunately, Hive's users now can't use both the current ORC library and Hive 2.0.1 or Hive
2.1.0. That really sucks and will cause a lot of problems down stream. By just renaming the
packages to org.apache.hive.orc, we won't change the functionality and the two versions of
ORC will live side by side.

While the org.apache.orc package is an implementation detail from Hive's point of view, it
is the primary API for ORC. So no, moving the package in ORC doesn't make sense.

> Fix naming of classes in orc module to not conflict with standalone orc
> -----------------------------------------------------------------------
>
>                 Key: HIVE-14309
>                 URL: https://issues.apache.org/jira/browse/HIVE-14309
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>
> The current Hive 2.0 and 2.1 releases have classes in the org.apache.orc namespace that
clash with the ORC project's classes. From Hive 2.2 onward, the classes will only be on ORC,
but we'll reduce the problems of classpath issues if we rename the classes to org.apache.hive.orc.
> I've looked at a set of projects (pig, spark, oozie, flume, & storm) and can't find
any uses of Hive's versions of the org.apache.orc classes, so I believe this is a safe change
that will reduce the integration problems down stream.



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