KMeans failing to create correct Clustering Policy
--------------------------------------------------
Key: MAHOUT-999
URL: https://issues.apache.org/jira/browse/MAHOUT-999
Project: Mahout
Issue Type: Bug
Reporter: Grant Ingersoll
Priority: Minor
Jenkins has been complaining about the cluster-reuters.sh example for a while
and the issue appears to be due to trying to write a file to a directory that
doesn't exist due to the fact that it is a file, not a directory.
{code}
Exception in thread "main" java.io.IOException: Mkdirs failed to create
/tmp/mahout-work-grantingersoll/reuters-kmeans-clusters/part-randomSeed/clusters-0
at
org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:366)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:528)
at
org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:843)
at
org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:831)
at
org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:823)
at
org.apache.mahout.clustering.classify.ClusterClassifier.writePolicy(ClusterClassifier.java:232)
at
org.apache.mahout.clustering.classify.ClusterClassifier.writeToSeqFiles(ClusterClassifier.java:185)
at
org.apache.mahout.clustering.kmeans.KMeansDriver.buildClusters(KMeansDriver.java:254)
at
org.apache.mahout.clustering.kmeans.KMeansDriver.run(KMeansDriver.java:154)
at
org.apache.mahout.clustering.kmeans.KMeansDriver.run(KMeansDriver.java:104)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at
org.apache.mahout.clustering.kmeans.KMeansDriver.main(KMeansDriver.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
{code}
Run examples/bin/cluster-reuters.sh and choose 1 (KMeans) to see the error.
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