Have you rebuilt Mahout for your version? We're not supporting Hadoop version two yet.
See here for some direction: http://mail-archives.us.apache.org/mod_mbox/mahout-user/201403.mbox/%3CCANg8BGD8Cm_=ESecQQ5mDL+6ybbNrR1Ce7i=pkuimxmcktw...@mail.gmail.com%3E > On Mar 30, 2014, at 7:28 PM, "Phan, Truong Q" <[email protected]> > wrote: > > 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 > > P + 61 2 8576 5771 > M + 61 4 1463 7424 > E [email protected] > W www.telstra.com > Love the movies? Telstra takes you there with $10 movie tickets, just to say > thanks. Available now at telstra.com/movies > This communication may contain confidential or copyright information of > Telstra Corporation Limited (ABN 33 051 775 556). If you are not an intended > recipient, you must not keep, forward, copy, use, save or rely on this > communication, and any such action is unauthorised and prohibited. If you > have received this communication in error, please reply to this email to > notify the sender of its incorrect delivery, and then delete both it and your > reply. > >
