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From "Aaron Kimball (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-716) org.apache.hadoop.mapred.lib.db.DBInputformat not working with oracle
Date Thu, 09 Jul 2009 15:26:15 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12729294#action_12729294

Aaron Kimball commented on MAPREDUCE-716:

Thanks for the review Enis.

The Hudson failures are, of course, unrelated to this patch.  There's no new tests because
this patch consists of two things; vendor-specific logic which requires drivers incompatible
with Apache (mysql, Oracle), and a refactoring. Since we can't check in MySQL's or Oracle's
JDBC drivers, Hudson can't test those codepaths. I've used Sqoop + MAPREDUCE-716 to import
from Oracle and MySQL, so I've confirmed locally that it works. The refactoring doesn't really
require a new test, the existing test plan should cover it.

> org.apache.hadoop.mapred.lib.db.DBInputformat not working with oracle
> ---------------------------------------------------------------------
>                 Key: MAPREDUCE-716
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-716
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>         Environment: Java 1.6, HAdoop0.19.0, Linux..Oracle, 
>            Reporter: evanand
>            Assignee: Aaron Kimball
>         Attachments: HADOOP-5482.20-branch.patch, HADOOP-5482.patch, HADOOP-5482.trunk.patch,
MAPREDUCE-716.2.branch20.patch, MAPREDUCE-716.2.trunk.patch, MAPREDUCE-716.3.trunk.patch,
MAPREDUCE-716.4.branch20.patch, MAPREDUCE-716.4.trunk.patch
>   Original Estimate: 24h
>  Remaining Estimate: 24h
> org.apache.hadoop.mapred.lib.db.DBInputformat not working with oracle.
> The out of the box implementation of the Hadoop is working properly with mysql/hsqldb,
but NOT with oracle.
> Reason is DBInputformat is implemented with mysql/hsqldb specific query constructs like
> FIX:
> building a database provider specific logic based on the database providername (which
we can get using connection).

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