[HADOOP-3424] the value returned from getPartition should be checked to make sure it is in the range 0..#reduces-1

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.17.0
• Fix Version/s: 0.18.0
• Assignee: Christopher Douglas
• Reporter: Owen O'Malley
• Created: 20/May/08 23:57
• Updated: 08/Jul/09 16:52
• Resolved: 21/May/08 14:32

Description

Since HADOOP-2919, map tasks haven't complained if getPartition returns numbers outside of the valid range. This leads to applications where some of the transient output is ignored (all of the rows marked for reduce -1, for example, are discarded, because reduce -1 doesn't exist.)