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https://issues.apache.org/jira/browse/MAHOUT-1327?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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alan krumholz resolved MAHOUT-1327.
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Resolution: Not A Problem
found the problem.
You need to set up hadoop to load the config files correctly
> org.apache.mahout.clustering.classify.ClusterClassifier.readFromSeqFiles is
> using a new instance of the Configuration object to read the file form the
> Path instead of using the Configuration object passed to the method
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-1327
> URL: https://issues.apache.org/jira/browse/MAHOUT-1327
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.7, 0.8
> Reporter: alan krumholz
> Assignee: Suneel Marthi
> Priority: Critical
>
> When you use KmeansDriver.run with a Configuration object pointing to HDFS:
> Configuration conf = new Configuration();
> conf.addResource(new
> Path("C:\\hdp-win\\hadoop\\hadoop-1.1.0-SNAPSHOT\\conf\\core-site.xml"));
> conf.addResource(new
> Path("C:\\hdp-win\\hadoop\\hadoop-1.1.0-SNAPSHOT\\conf\\hdfs-site.xml"))
> It calls
> org.apache.mahout.clustering.classify.ClusterClassifier.readFromSeqFiles
> at some point and I get an exception (there is no problem if you run it with
> a conf object pointing to the local file system):
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
> at java.util.ArrayList.RangeCheck(ArrayList.java:547)
> at java.util.ArrayList.get(ArrayList.java:322)
> at
> org.apache.mahout.clustering.classify.ClusterClassifier.readFromSeqFiles(ClusterClassifier.java:215)
> I think this is happening because that method is using a new instance of the
> Configuration object to read the file form the Path instead of using the
> Configuration object passed to the method.
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