[MAHOUT-1335] MultithreadedSharingMapper fails on Hadoop 2

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8
• Fix Version/s: 0.9
• Component/s: Collaborative Filtering
• Assignee: Suneel Marthi
• Reporter: Mike Percy
• Created: 17/Sep/13 02:35
• Updated: 03/Feb/14 07:57
• Resolved: 17/Sep/13 05:45

Description

Between Hadoop 1 and 2, the string value of the Configuration option that stores the mapper classname in MultithreadedMapper changed from "mapred.map.multithreadedrunner.class" to "mapreduce.mapper.multithreadedmapper.mapclass".

Since there is a stable API (getMapperClass()) that abstracts these differences away, we should use that instead.