Luke Lu created MAPREDUCE-4400: ---------------------------------- Summary: Fix performance regression for small jobs/workflows Key: MAPREDUCE-4400 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4400 Project: Hadoop Map/Reduce Issue Type: Bug Components: task Affects Versions: 1.0.3, 0.20.203.0 Reporter: Luke Lu Assignee: Luke Lu
There is a significant performance regression for small jobs/workflows (vs 0.20.2) in the Hadoop 1.x series. Most noticeable with Hive and Pig jobs. PigMix has an average 40% regression against 0.20.2. -- 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