[MAHOUT-347] org.apache.mahout.math.IndexException: index(-521252222) is out of bounds of (0, 2147483647)

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.3
• Fix Version/s: 0.4
• Labels: item mahout

Environment

mahout on linux 64bit

• Assignee: Sean R. Owen
• Reporter: Han Hui Wen
• Created: 26/Mar/10 14:29
• Updated: 31/Jan/24 22:11
• Resolved: 26/Mar/10 20:26

Description

when run job org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
get following error:

10/03/26 09:11:05 INFO mapred.JobClient: Task Id : attempt_201003221228_0170_r_000000_0, Status : FAILED
org.apache.mahout.math.IndexException: index(-521252222) is out of bounds of (0, 2147483647)
at org.apache.mahout.math.AbstractVector.set(AbstractVector.java:353)
at org.apache.mahout.cf.taste.hadoop.item.ToUserVectorReducer.reduce(ToUserVectorReducer.java:75)
at org.apache.mahout.cf.taste.hadoop.item.ToUserVectorReducer.reduce(ToUserVectorReducer.java:58)
at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:463)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:411)
at org.apache.hadoop.mapred.Child.main(Child.java:170)