[jira] [Work started] (MAHOUT-999) KMeans failing to create correct Clustering Policy

["Paritosh Ranjan (Work started) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on MAHOUT-999 started by Paritosh Ranjan.

> 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
>            Assignee: Paritosh Ranjan
>            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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