Thanks for the reply. I am running on Linux. The problem IS the config file but since I couldn't figure out where, I made two copies of hadoop. One where it is looking for it, and where other nodes will be looking for it.
In my config file, everything is I have set hadoop in /home/hadoop but it is looking for it in /home/owner/hadoop (for some processes at least) and that was the problem. On Tue, Mar 12, 2013 at 11:06 AM, Jean-Marc Spaggiari < [email protected]> wrote: > Hi Cyril, > > Are you running in Cygwin? Or Linux? Also, you might want to share > your configuration files if you want someone to take a look. > > JM > > 2013/3/8 Cyril Bogus <[email protected]>: > > I am trying to have a two node cluster. > > Hadoop 1.0.4 > > > > the master is under the account A > > the slave is under the account B > > > > I run into an exception when I try to start the cluster. > > Here is my output > > > > A@owner-5:~$ /home/hadoop/bin/start-all.sh > > Warning: $HADOOP_HOME is deprecated. > > > > namenode running as process 3020. Stop it first. > > A@master: starting datanode, logging to > > /home/hadoop/libexec/../logs/hadoop-A-datanode-owner-5.out > > B@slave: Warning: $HADOOP_HOME is deprecated. > > B@slave: > > B@slave: starting datanode, logging to > > /home/owner/hadoop//logs/hadoop-owner-datanode-owner-7.out > > B@slave: Exception in thread "main" java.lang.NoClassDefFoundError: > > org/apache/hadoop/util/PlatformName > > B@slave: Caused by: java.lang.ClassNotFoundException: > > org.apache.hadoop.util.PlatformName > > B@slave: at java.net.URLClassLoader$1.run(URLClassLoader.java:202) > > B@slave: at java.security.AccessController.doPrivileged(Native > Method) > > B@slave: at > java.net.URLClassLoader.findClass(URLClassLoader.java:190) > > B@slave: at java.lang.ClassLoader.loadClass(ClassLoader.java:306) > > B@slave: at > > sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > > B@slave: at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > > B@slave: Could not find the main class: > org.apache.hadoop.util.PlatformName. > > Program will exit. > > B@slave: Exception in thread "main" java.lang.NoClassDefFoundError: > > org/apache/hadoop/hdfs/server/datanode/DataNode > > A@master: secondarynamenode running as process 3352. Stop it first. > > starting jobtracker, logging to > > /home/hadoop/libexec/../logs/hadoop-A-jobtracker-owner-5.out > > B@slave: Warning: $HADOOP_HOME is deprecated. > > B@slave: > > B@slave: starting tasktracker, logging to > > /home/owner/hadoop//logs/hadoop-owner-tasktracker-owner-7.out > > A@master: starting tasktracker, logging to > > /home/hadoop/libexec/../logs/hadoop-A-tasktracker-owner-5.out > > B@slave: Exception in thread "main" java.lang.NoClassDefFoundError: > > org/apache/hadoop/util/PlatformName > > B@slave: Caused by: java.lang.ClassNotFoundException: > > org.apache.hadoop.util.PlatformName > > B@slave: at java.net.URLClassLoader$1.run(URLClassLoader.java:202) > > B@slave: at java.security.AccessController.doPrivileged(Native > Method) > > B@slave: at > java.net.URLClassLoader.findClass(URLClassLoader.java:190) > > B@slave: at java.lang.ClassLoader.loadClass(ClassLoader.java:306) > > B@slave: at > > sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > > B@slave: at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > > B@slave: Could not find the main class: > org.apache.hadoop.util.PlatformName. > > Program will exit. > > B@slave: Exception in thread "main" java.lang.NoClassDefFoundError: > > org/apache/hadoop/mapred/TaskTracker > > A@owner-5:~$ > > >
