Hi
Does Mahout v0.9 supports Cloudera Hadoop v5 (2.2.0-cdh5.0.0-beta-1)?
I have managed to installed and run all test cases under the Mahout v0.9
without any issue.
Please see below for the evident of the test cases.
However I have no success to run the example from
http://girlincomputerscience.blogspot.com.au/2010/11/apache-mahout.html and got
the following errors.
Note: I have set the CLASSPATH to point to all of Mahout's jar files.
<snip>
$ env | grep CLASS
CLASSPATH=:/usr/lib/hadoop-0.20-mapreduce/lib:/usr/lib/hadoop-0.20-mapreduce/lib:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/core/target/mahout-core-0.9.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/core/target/mahout-core-0.9-job.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/core/target/mahout-core-0.9-sources.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/core/target/mahout-core-0.9-tests.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math/target/mahout-math-0.9.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math/target/mahout-math-0.9-sources.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math/target/mahout-math-0.9-tests.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/integration/target/mahout-integration-0.9.jar:/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/integration/target/mahout-integration-0.9-sources.jar
$ export
MAHOUT_HOME=/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9
$ export PATH=$MAHOUT_HOME/bin:$PATH
oracle@bpdevdmsdbs01:BDMSSI1D1 ----
/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/nem-dms
-----
$ mahout recommenditembased --input mydata.dat --usersFile user.dat
--numRecommendations 2 --output output/ --similarityClassname
SIMILARITY_PEARSON_CORRELATION
Running on hadoop, using /usr/lib/hadoop-0.20-mapreduce/bin/hadoop and
HADOOP_CONF_DIR=
MAHOUT-JOB:
/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/examples/target/mahout-examples-0.9-job.jar
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/hadoop/util/PlatformName
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.util.PlatformName
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.apache.hadoop.util.PlatformName. Program
will exit.
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/hadoop/util/RunJar
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.util.RunJar
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.apache.hadoop.util.RunJar. Program will
exit.
</snip>
<snip>
[INFO] --- maven-install-plugin:2.5.1:install (default-install) @
mahout-math-scala ---
[INFO] Installing
/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math-scala/target/mahout-math-scala-0.9.jar
to
/home/oracle/.m2/repository/org/apache/mahout/mahout-math-scala/0.9/mahout-math-scala-0.9.jar
[INFO] Installing
/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math-scala/pom.xml
to
/home/oracle/.m2/repository/org/apache/mahout/mahout-math-scala/0.9/mahout-math-scala-0.9.pom
[INFO] Installing
/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math-scala/target/mahout-math-scala-0.9-tests.jar
to
/home/oracle/.m2/repository/org/apache/mahout/mahout-math-scala/0.9/mahout-math-scala-0.9-tests.jar
[INFO] Installing
/ora/db002/stg001/BDMSL1D/hadoop/nem-dms/devices/mahout/mahout-distribution-0.9/math-scala/target/mahout-math-scala-0.9-sources.jar
to
/home/oracle/.m2/repository/org/apache/mahout/mahout-math-scala/0.9/mahout-math-scala-0.9-sources.jar
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Mahout Build Tools ................................ SUCCESS [01:21 min]
[INFO] Apache Mahout ..................................... SUCCESS [ 6.898 s]
[INFO] Mahout Math ....................................... SUCCESS [17:39 min]
[INFO] Mahout Core ....................................... SUCCESS [ 01:01 h]
[INFO] Mahout Integration ................................ SUCCESS [06:59 min]
[INFO] Mahout Examples ................................... SUCCESS [03:15 min]
[INFO] Mahout Release Package ............................ SUCCESS [ 0.026 s]
[INFO] Mahout Math/Scala wrappers ........................ SUCCESS [03:39 min]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:34 h
[INFO] Finished at: 2014-03-28T13:10:48+10:00
[INFO] Final Memory: 49M/276M
[INFO] ------------------------------------------------------------------------
</snip>
Thanks and Regards,
Truong Phan
Senior Technology Specialist
Database Engineering
Transport & Routing Engineering | Networks | Telstra Operations
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