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From 顾荣 <gurongwal...@gmail.com>
Subject Re: can not start hamma
Date Wed, 12 Sep 2012 02:14:03 GMT
Thanks, Edward. It's a JAR class path error. Problem solved now.

walker.

2012/9/11 Edward J. Yoon <edwardyoon@apache.org>

> Looks like a JAR class path problem. Did you manually run the
> start-bspd.sh script?
>
> On Tue, Sep 11, 2012 at 1:18 PM, 顾荣 <gurongwalker@gmail.com> wrote:
> > Hi,all.
> >
> > I am new to Hama. I installed a hama on my cluster, and configured
> setting
> > as the tutorial. However, I can not start hama successfully. The error
> > message is :
> > starting bspmaster, logging to
> >
> /home/hadoop/hama_installs/hama-0.5.0/bin/../logs/hama-hadoop-bspmaster-slave021.out
> > Exception in thread "main" java.lang.NoClassDefFoundError:
> > org/apache/hama/BSPMasterRunner
> > Caused by: java.lang.ClassNotFoundException:
> org.apache.hama.BSPMasterRunner
> >     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: org.apache.hama.BSPMasterRunner.  Program
> > will exit.
> > localhost: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> > localhost: @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
> > localhost: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> > localhost: IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
> > localhost: Someone could be eavesdropping on you right now
> > (man-in-the-middle attack)!
> > localhost: It is also possible that the RSA host key has just been
> changed.
> > localhost: The fingerprint for the RSA key sent by the remote host is
> > localhost: bd:f4:c9:72:0e:48:74:e4:92:b4:c7:93:a0:24:94:c5.
> > localhost: Please contact your system administrator.
> > localhost: Add correct host key in /home/hadoop/.ssh/known_hosts to get
> rid
> > of this message.
> > localhost: Offending key in /home/hadoop/.ssh/known_hosts:5
> > localhost: Password authentication is disabled to avoid man-in-the-middle
> > attacks.
> > localhost: Keyboard-interactive authentication is disabled to avoid
> > man-in-the-middle attacks.
> > localhost: starting groom, logging to
> >
> /home/hadoop/hama_installs/hama-0.5.0/bin/../logs/hama-hadoop-groom-slave021.out
> > localhost: Exception in thread "main" java.lang.NoClassDefFoundError:
> > org/apache/hama/GroomServerRunner
> > localhost: Caused by: java.lang.ClassNotFoundException:
> > org.apache.hama.GroomServerRunner
> > localhost:     at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> > localhost:     at java.security.AccessController.doPrivileged(Native
> Method)
> > localhost:     at
> java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> > localhost:     at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> > localhost:     at
> > sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> > localhost:     at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
> > localhost: Could not find the main class:
> > org.apache.hama.GroomServerRunner.  Program will exit.
> >
> >
> > can you give me some tips?
> >
> > thanks in advance.
> >
> > walker
>
>
>
> --
> Best Regards, Edward J. Yoon
> @eddieyoon
>

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