Subject: Problem in executing DisplayCanopy


Those Display examples need a graphical UI so I wouldn't expect them to run on Hadoop.

-----Original Message-----
From: Sengupta, Sohini IN BLR SISL [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 22, 2011 12:18 AM
To: [EMAIL PROTECTED]
Subject: Problem in executing DisplayCanopy

Hi everyone,
I am very new to Mahout. I managed to set it up and run it on hadoop. However, I am facing problems when I try to execute DisplayCanopy program on hadoop. I get following error:

Running on hadoop, using HADOOP_HOME=/usr/local/hadoop
No HADOOP_CONF_DIR set, using /usr/local/hadoop/conf
11/02/21 04:00:11 WARN driver.MahoutDriver: No org.apache.mahout.clustering.display.DisplayCanopy.props found on classpath, will use command-line arguments only
Exception in thread "main" java.lang.IllegalAccessException: Class org.apache.hadoop.util.ProgramDriver$ProgramDescription can not access a member of class org.apache.mahout.clustering.display.DisplayCanopy with modifiers "public static"
    at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:65)
    at java.lang.reflect.Method.invoke(Method.java:588)
    at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
    at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
    at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:184)
    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)

At command prompt, I give the following command:

/usr/local/mahout-distribution-0.4/bin/mahout  org.apache.mahout.clustering.display.DisplayCanopy

I have set all relevant environment variables.
Any pointers are welcome.

Thanks a lot in advance for your help.
Regards,
Sohini

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