Thanks Jeff, it was a problem with JAVA_HOME. I have another problem now though, I have this:
$JAVA: /cygdrive/c/Program Files/Java/jdk1.6.0_26/bin/java $JAVA_HEAP_MAX: -Xmx1000m $HADOOP_OPTS: -Dhadoop.log.dir=C:\Users\Drew Gross\Documents\Projects\discom\hadoop-0.21.0\logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=C:\Users\Drew Gross\Documents\Projects\discom\hadoop-0.21.0\ -Dhadoop.id.str= -Dhadoop.root.logger=INFO,console -Djava.library.path=/cygdrive/c/Users/Drew Gross/Documents/Projects/discom/hadoop-0.21.0/lib/native/ -Dhadoop.policy.file=hadoop-policy.xml $CLASS: org.apache.hadoop.util.RunJar Exception in thread "main" java.lang.NoClassDefFoundError: Gross\Documents\Projects\discom\hadoop-0/21/0\logs Caused by: java.lang.ClassNotFoundException: Gross\Documents\Projects\discom\hadoop-0.21.0\logs 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: Gross\Documents\Projects\discom\hadoop-0.21.0\logs. Program will exit. (This is with some extra debugging info added by me in bin/hadoop) It looks like the windows style file names are causing problems, especially the spaces. Has anyone encountered this before, and know how to fix? I tried escaping the spaces and surrounding the file paths with quotes (not at the same time), but that didn't help. Drew On Tue, Jun 21, 2011 at 6:24 AM, madhu phatak <phatak....@gmail.com> wrote: > > I think the jar have some issuses where its not able to read the Main class > from manifest . try unjar the jar and see in Manifest.xml what is the main > class and then run as follows > > bin/hadoop jar hadoop-*-examples.jar <Full qualified main class> grep input > output 'dfs[a-z.]+' > On Thu, Jun 16, 2011 at 10:23 AM, Drew Gross <drew.a.gr...@gmail.com> wrote: > > > Hello, > > > > I'm trying to run the example from the quick start guide on Windows and I > > get this error: > > > > $ bin/hadoop jar hadoop-*-examples.jar grep input output 'dfs[a-z.]+' > > Exception in thread "main" java.lang.NoClassDefFoundError: > > Caused by: java.lang.ClassNotFoundException: > > 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: . Program will exit. > > Exception in thread "main" java.lang.NoClassDefFoundError: > > Gross\Documents\Projects\discom\hadoop-0/21/0\logs > > Caused by: java.lang.ClassNotFoundException: > > Gross\Documents\Projects\discom\hadoop-0.21.0\logs > > 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: > > Gross\Documents\Projects\discom\hadoop-0.21.0\logs. Program will exit. > > > > Does anyone know what I need to change? > > > > Thank you. > > > > From, Drew > > > > -- > > Forget the environment. Print this e-mail immediately. Then burn it. > > -- Forget the environment. Print this e-mail immediately. Then burn it.
