This is a fix both for oracle support and managing DB splits in general.
------------------------------------------------------------------------
Key: MAPREDUCE-4126
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4126
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: performance
Affects Versions: 1.0.0
Environment: Redhat 6.1 x86_64
Reporter: Joseph Doss
Fix For: 1.0.0
Attachments: hadoop.dbinputformat.query.split.patch.patch
This is and addition to an older patch that addressed oracle support. We found
that in large result sets, the map reduce was both splitting the results ( as
expected ) and running a duplicate ( full result set ) on one node, resulting
in a long runtime that should have been reduced by splitting.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
