This is the error I receive:
mahout kmeans -i /user/rhadoop/in/sequence/ \
> -c /user/rhadoop/out/canopy-centroids/clusters-0 \
> -o /user/rhadoop/out/clusters-out/ \
> -x 10 \
> -dm
> /home/rhadoop/projects/workspace/mahout_abac/target/classes/clustering/AbacDistanceMeasure.class
MAHOUT_LOCAL is not set; adding HADOOP_CONF_DIR to classpath.
Running on hadoop, using /usr/lib/hadoop/bin/hadoop and
HADOOP_CONF_DIR=/etc/hadoop/conf
MAHOUT-JOB: /usr/lib/mahout/mahout-examples-0.7-cdh4.1.2-job.jar
13/02/12 17:05:57 INFO common.AbstractJob: Command line arguments:
{--clusters=[/user/rhadoop/out/canopy-centroids/clusters-0],
--convergenceDelta=[0.5],
--distanceMeasure=[/home/rhadoop/projects/workspace/mahout_abac/target/classes/clustering/AbacDistanceMeasure.class],
--endPhase=[2147483647], --input=[/user/rhadoop/in/sequence/], --maxIter=[10],
--method=[mapreduce], --output=[/user/rhadoop/out/clusters-out2/],
--startPhase=[0], --tempDir=[temp]}
Exception in thread "main" java.lang.IllegalStateException:
java.lang.ClassNotFoundException:
/home/rhadoop/projects/workspace/mahout_abac/target/classes/clustering/AbacDistanceMeasure.class
at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:30)
at
org.apache.mahout.clustering.kmeans.KMeansDriver.run(KMeansDriver.java:92)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at
org.apache.mahout.clustering.kmeans.KMeansDriver.main(KMeansDriver.java:49)
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:72)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:144)
at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195)
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:208)
Caused by: java.lang.ClassNotFoundException:
/home/rhadoop/projects/besmart/workspace/mahout_abac/target/classes/clustering/AbacDistanceMeasure.class
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.apache.mahout.common.ClassUtils.instantiateAs(ClassUtils.java:28)
... 15 more
Is this the proper way to use the custom distance measure? or should I package
the class? and how?
Thank you in advance,
Mihai Josan
> Are you getting any errors?
> Can you specify fully qualified class name of your distance measure (like
> com.xxx.MyDistanceMeasure) and check?
>
> Best,
> Mahesh Balija,
> Calsoft Labs.
>
>
> On Tue, Feb 12, 2013 at 2:28 PM, Mihai Josan
> <[email protected]>wrote:
>
> > Hello,
> >
> > Can you please tell me how can I use a custom made distance measure with
> > Mahout in command line?
> > I am trying to do a clusterizationusing this distance like:
> >
> > mahout kmeans -i in/sequence/ \
> > -c out/centroids/clusters-0 \
> > -o out/clusters-out/ \
> > -x 10 \
> > -dm MyDistanceMeasure \
> > -ow
> >
> > Thank you in advance,
> > Mihai
> >
