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From Delroy Cameron <delroy.came...@gmail.com>
Subject k-means InvocationTargetException
Date Thu, 06 May 2010 06:01:25 GMT

i ran k-means clustering a few days ago without any problems...did and svn
update to get the latest trunk and now the same exact command that i ran
before gives me this. 
InvocationTargetException..i don't remember adding any conflicts..what is
even more puzzling is that Dirichlet Clustering runs just fine...

hadoop jar /mahout/core/target/mahout-core-0.4-SNAPSHOT.job
org.apache.mahout.clustering.kmeans.KMeansDriver -i
input-data-vectors/vectors/part-00000 -o input-data-kmeans-clusters -c
clusters -m org.apache.mahout.common.distance.CosineDistanceMeasure -v
org.apache.mahout.matrix.SparseVector -x 20 -d 0.5 -k 26 -w -r 8
10/05/06 01:59:55 WARN common.HadoopUtil: Deleting
input-data-kmeans-clusters
10/05/06 01:59:55 WARN common.HadoopUtil: Creating dir
input-data-kmeans-clusters
10/05/06 01:59:55 INFO util.NativeCodeLoader: Loaded the native-hadoop
library
10/05/06 01:59:55 INFO zlib.ZlibFactory: Successfully loaded & initialized
native-zlib library
10/05/06 01:59:55 INFO compress.CodecPool: Got brand-new compressor
10/05/06 01:59:58 INFO kmeans.RandomSeedGenerator: Wrote 26 vectors to
clusters/part-randomSeed
10/05/06 01:59:58 INFO kmeans.KMeansDriver: Input:
input-data-vectors/vectors/part-00000 Clusters In: clusters/part-randomSeed
Out: input-data-kmeans-clusters Distance:
org.apache.mahout.common.distance.CosineDistanceMeasure
10/05/06 01:59:58 INFO kmeans.KMeansDriver: convergence: 0.5 max Iterations:
20 num Reduce Tasks: 8 Input Vectors: org.apache.mahout.math.VectorWritable
10/05/06 01:59:58 INFO kmeans.KMeansDriver: Iteration 0
10/05/06 01:59:58 WARN mapred.JobClient: Use GenericOptionsParser for
parsing the arguments. Applications should implement Tool for the same.
10/05/06 01:59:59 INFO mapred.FileInputFormat: Total input paths to process
: 1
10/05/06 01:59:59 INFO mapred.JobClient: Running job: job_201004230623_0119
10/05/06 02:00:00 INFO mapred.JobClient:  map 0% reduce 0%
10/05/06 02:00:09 INFO mapred.JobClient: Task Id :
attempt_201004230623_0119_m_000000_0, Status : FAILED
java.lang.RuntimeException: Error in configuring object
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
        at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
        at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
        at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
        ... 5 more
Caused by: java.lang.RuntimeException: Error in configuring object
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
        at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
        at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
        ... 10 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
        ... 13 more
Caused by: java.lang.IllegalStateException: Cluster is empty!
        at
org.apache.mahout.clustering.kmeans.KMeansMapper.configure(KMeansMapper.java:73)
        ... 18 more

10/05/06 02:00:11 INFO mapred.JobClient: Task Id :
attempt_201004230623_0119_m_000001_0, Status : FAILED
java.lang.RuntimeException: Error in configuring object
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
        at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
        at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:354)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
        at org.apache.hadoop.mapred.Child.main(Child.java:170)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
        ... 5 more
Caused by: java.lang.RuntimeException: Error in configuring object
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
        at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
        at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
        at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
        ... 10 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
        ... 13 more
Caused by: java.lang.IllegalStateException: Cluster is empty!
        at
org.apache.mahout.clustering.kmeans.KMeansMapper.configure(KMeansMapper.java:73)
        ... 18 more

-----
--cheers
Delroy
-- 
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