[HADOOP-2] Reused Keys and Values fail with a Combiner

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.1.0
• Assignee: Owen O'Malley
• Reporter: Owen O'Malley
• Created: 04/Feb/06 05:54
• Updated: 11/Aug/15 07:18
• Resolved: 31/Mar/06 05:11

Description

If the map function reuses the key or value by destructively modifying it after the output.collect(key,value) call and your application uses a combiner, the data is corrupted by having lots of instances with the last key or value.

Issue Links

• is depended upon by: HADOOP-110 new key and value instances are allocated before each map