hadoop ClassNotFoundException when running start-all.sh

Question

I tried to run ./hadoop start-all.sh Unfortunately this error is thrown

Exception in thread "main" java.lang.NoClassDefFoundError: start/all/sh
Caused by: java.lang.ClassNotFoundException: start.all.sh
    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: start.all.sh. Program will exit.

I though it might have been the hadoop path but that does not seem to fix the issue. The path that i set in the hadoop-env.sh is /usr/local/hadoop/bin`.

I looked at other posts with simular titles Hadoop: strange ClassNotFoundException

what is considered the main class. I tried changing the path to /usr/local/hadoop/bin/

FourOfAKind · Accepted Answer · 2012-07-03 18:52:35Z

1

Its a shell script. >> start-all.sh should do. You do not need hadoop. You can find more information here. http://hadoop.apache.org/common/docs/r0.19.2/quickstart.html

answered Jul 3, 2012 at 18:52

FourOfAKind

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3 Comments

FourOfAKind Over a year ago

You tried with absolute path as suggested by Sandeep? Do printenv and see if the path variable has the directory that contains start-all.sh.

alex Over a year ago

it runs but /usr/bin/env is not found

alex Over a year ago

i dont know what happened but i cant even login now

Sandeep · Accepted Answer · 2012-07-03 19:02:22Z

1

Just run as follows /path/to/Hadoop/home/bin/start-all.sh In your case /user/local/hadoop/bin/start-all.sh

answered Jul 3, 2012 at 19:02

Sandeep

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Comments

GBOT · Accepted Answer · 2015-02-04 19:01:56Z

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Since you are already in /hadoop/bin folder. You no need to give again ./hadoop start-all.sh

instead just give ./start-all.sh

It will not throw any error and it will start your hadoop process.

answered Feb 4, 2015 at 19:01

GBOT

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