[jira] [Created] (MAHOUT-1327) 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

["alan krumholz (JIRA)" <ji...@apache.org>]

alan krumholz created MAHOUT-1327:
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             Summary: 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: 0.8, 0.7
            Reporter: alan krumholz
            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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