I have made simple configurations for testing core-site.xml <?xml version="1.0"?> <configuration> <property> <name>fs.default.name</name> <value>hdfs://localhost:9000</value> </property> </configuration>
mapred-site.xml <?xml version="1.0"?> <configuration> <property> <name> mapreduce.framework.name</name> <value>yarn</value> </property> </configuration> hdfs-site.xml <?xml version="1.0"?> <?xml-stylesheet href="configuration.xsl"?> <configuration> <property> <name>dfs.replication</name> <value>1</value> </property> <property> <name>dfs.permissions</name> <value>false</value> </property> </configuration> hadoop-env.sh export JAVA_HOME=/usr/lib/jvm/java-6-openjdk export HADOOP_DEV_HOME=/home/hadoop1/hadoop-0.23.1 export HADOOP_MAPRED_HOME=${HADOOP_DEV_HOME} export HADOOP_COMMON_HOME=${HADOOP_DEV_HOME} export HADOOP_HDFS_HOME=${HADOOP_DEV_HOME} export YARN_HOME=${HADOOP_DEV_HOME} export HADOOP_CONF_DIR=${HADOOP_DEV_HOME}/conf/ export YARN_CONF_DIR=${HADOOP_DEV_HOME}/conf/ I tried to format using the command bin/hadoop namenode -format On Fri, Mar 2, 2012 at 7:56 AM, Wellington Chevreuil < wellington.chevre...@gmail.com> wrote: > Hi, > > can you tell us how are you trying to format your hdfs? As it´s a > NoClassDefFoundError, probably your hadoop lib is not on your > classpath. > > Thanks, > Wellington. > > 2012/2/29 Marcos Ortiz <mlor...@uci.cu>: > > On 03/01/2012 04:48 AM, raghavendhra rahul wrote: > >> > >> Hi, > >> I tried to configure hadoop 0.23.1.I added all libs from share > >> folder to lib directory.But still i get the error while formating the > >> namenode > >> > >> > >> Exception in thread "main" java.lang.NoClassDefFoundError: > >> org/apache/hadoop/hdfs/server/namenode/NameNode > >> Caused by: java.lang.ClassNotFoundException: > >> org.apache.hadoop.hdfs.server.namenode.NameNode > >> at java.net.URLClassLoader$1.run(URLClassLoader.java:217) > >> at java.security.AccessController.doPrivileged(Native Method) > >> at java.net.URLClassLoader.findClass(URLClassLoader.java:205) > >> at java.lang.ClassLoader.loadClass(ClassLoader.java:321) > >> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) > >> at java.lang.ClassLoader.loadClass(ClassLoader.java:266) > >> Could not find the main class: > >> org.apache.hadoop.hdfs.server.namenode.NameNode. Program will exit. > >> > >> > >> Any help??? > > > > Can you show us here your .conf files? > > core-site.xml > > mapred-site.xml > > hdfs-site.xml > > > > Which is your configuration for your conf/hadoop-env.sh? > > > > Regards > > > > -- > > Marcos Luis Ortíz Valmaseda > > Sr. Software Engineer (UCI) > > http://marcosluis2186.posterous.com > > http://postgresql.uci.cu/blog/38 > > > > > > > > Fin a la injusticia, LIBERTAD AHORA A NUESTROS CINCO COMPATRIOTAS QUE SE > > ENCUENTRAN INJUSTAMENTE EN PRISIONES DE LOS EEUU! > > http://www.antiterroristas.cu > > http://justiciaparaloscinco.wordpress.com >