I would agree; if $HADOOP_HOME is set, CONF should have been set as well. I
fixed that environment variable, and now the error is:
bin/mahout clusterdump --seqFileDir part-00000 --output testFile.txt
running on hadoop, using
HADOOP_HOME=/home/adam/Coding/hadoopResearch/hadoop-0.20.2 and
HADOOP_CONF_DIR=/home/adam/Coding/hadoopResearch/hadoop-0.20.2/conf
10/04/09 15:11:08 ERROR driver.MahoutDriver: MahoutDriver failed with args:
[--seqFileDir, part-00000, --output, testFile.txt, null]
null
Exception in thread "main" java.lang.NullPointerException
at
org.apache.mahout.utils.clustering.ClusterDumper.printClusters(ClusterDumper.java:121)
at
org.apache.mahout.utils.clustering.ClusterDumper.main(ClusterDumper.java:302)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:172)
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.RunJar.main(RunJar.java:156)
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