I'm getting this error repeated for several attempts in the last phase of the recommenditembased example on EMR with the default AMI and Hadoop version and a fresh Mahout 0.9 non-source tarball:
14/03/13 23:22:58 INFO mapred.JobClient: Task Id : attempt_201403132009_0009_m_000001_2, Status : FAILED Error: org.apache.lucene.util.PriorityQueue.<init>(I)V The ultimate output is several empty part files. Here's the du on the temp directory: $ hadoop fs -du temp Found 10 items 7 hdfs://10.196.18.64:9000/user/hadoop/temp/maxValues.bin 7 hdfs://10.196.18.64:9000/user/hadoop/temp/norms.bin 98 hdfs://10.196.18.64:9000/user/hadoop/temp/notUsed 7 hdfs://10.196.18.64:9000/user/hadoop/temp/numNonZeroEntries.bin 60281 hdfs:// 10.196.18.64:9000/user/hadoop/temp/observationsPerColumn.bin 48495057 hdfs://10.196.18.64:9000/user/hadoop/temp/pairwiseSimilarity 0 hdfs://10.196.18.64:9000/user/hadoop/temp/partialMultiply 12237129 hdfs:// 10.196.18.64:9000/user/hadoop/temp/preparePreferenceMatrix 0 hdfs://10.196.18.64:9000/user/hadoop/temp/similarityMatrix 8016325 hdfs://10.196.18.64:9000/user/hadoop/temp/weights Has anyone encountered this? Thanks Andrew
