Hi All, I made 4-5 attempts in configuring the namenode but always get a Java Error
I am using hadoop-0.22.0 on cygwin. SSH is working I have installed JDK 5 in JAVA_HOME=/cygdrive/c/Java/jdk1.5.0_22 and same is set in hadoop-env.sh as well as the cygwin .bash_profile. When i log in into Cygwin i see the JAVA_HOME set. Below is the error - -bash-4.1$ pwd /cygdrive/c/hadoop/hadoop-0.22.0 -bash-4.1$ bin/hadoop namenode -format *cygpath: can't convert empty path **java.lang.NoClassDefFoundError: org/apache/hadoop/util/PlatformName **Exception in thread "main" cygpath: can't convert empty path cygpath: can't convert empty path *DEPRECATED: Use of this script to execute hdfs command is deprecated. Instead use the hdfs command for it. cygpath: can't convert empty path java.lang.NoClassDefFoundError: org/apache/hadoop/util/PlatformName Exception in thread "main" cygpath: can't convert empty path cygpath: can't convert empty path java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) Exception in thread "main" -bash-4.1$ -bash-4.1$ -bash-4.1$ grep JAVA hadoop-env.sh # The only required environment variable is JAVA_HOME. All others are # set JAVA_HOME in this file, so that it is correctly defined on # export JAVA_HOME=/usr/lib/j2sdk1.6-sun *export JAVA_HOME=/cygdrive/c/Java/jdk1.5.0_22 * Any help is much appreciated. Thanks, Manish