org.apache.mahout.math.IndexException: index(-521252222) is out of bounds of
(0, 2147483647)
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Key: MAHOUT-347
URL: https://issues.apache.org/jira/browse/MAHOUT-347
Project: Mahout
Issue Type: Bug
Components: Collaborative Filtering
Affects Versions: 0.3
Environment: mahout on linux 64bit
Reporter: Hui Wen Han
Priority: Critical
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)
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