Mailing-List: contact common-user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: common-user@hadoop.apache.org
Received-SPF: pass (athena.apache.org: domain of jkrabacher@gmail.com
 designates 209.85.220.176 as permitted sender)
MIME-Version: 1.0
In-Reply-To: <4F04D4A9.6060500@gamehouse.com>
References: <4F04D4A9.6060500@gamehouse.com>
Date: Wed, 4 Jan 2012 16:55:29 -0600
Message-ID: 
 <CAPmdRGEZXSzh6dSyvDmZ1G=j4QizneUCMyYEwU5bV9q=XSf5_A@mail.gmail.com>
Subject: Re: datanode failing to start.
From: Joey Krabacher <jkrabacher@gmail.com>
To: common-user@hadoop.apache.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Have you checked your logs?

--Joey

On Wed, Jan 4, 2012 at 4:37 PM, Dave Kelsey <davek@gamehouse.com> wrote:
>
> java version 1.6.0_29
> hadoop: 0.20.203.0
>
> I'm attempting to setup the pseudo-distributed config on a mac 10.6.8.
> I followed the steps from the QuickStart
> (http://wiki.apache.org./hadoop/QuickStart) and succeeded with Stage 1:
> Standalone Operation.
> I followed the steps for Stage 2: Pseudo-distributed Configuration.
> I set the JAVA_HOME variable in conf/hadoop-env.sh and I changed tools.ja=
r
> to the location of classes.jar (a mac version of tools.jar)
> I've modified the three .xml files as described in the QuickStart.
> ssh'ing to localhost has been configured and works with passwordless
> authentication.
> I formatted the namenode with "bin/hadoop namenode -format" as the
> instructions say
>
> This is what I see when I run bin/start-all.sh
>
> root# bin/start-all.sh
> starting namenode, logging to
> /Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-namenode-Ho=
ot-2.local.out
> localhost: starting datanode, logging to
> /Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-datanode-Ho=
ot-2.local.out
> localhost: Exception in thread "main" java.lang.NoClassDefFoundError: ser=
ver
> localhost: Caused by: java.lang.ClassNotFoundException: server
> localhost: =A0 =A0 at java.net.URLClassLoader$1.run(URLClassLoader.java:2=
02)
> localhost: =A0 =A0 at java.security.AccessController.doPrivileged(Native =
Method)
> localhost: =A0 =A0 at java.net.URLClassLoader.findClass(URLClassLoader.ja=
va:190)
> localhost: =A0 =A0 at java.lang.ClassLoader.loadClass(ClassLoader.java:30=
6)
> localhost: =A0 =A0 at
> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> localhost: =A0 =A0 at java.lang.ClassLoader.loadClass(ClassLoader.java:24=
7)
> localhost: starting secondarynamenode, logging to
> /Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-secondaryna=
menode-Hoot-2.local.out
> starting jobtracker, logging to
> /Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-jobtracker-=
Hoot-2.local.out
> localhost: starting tasktracker, logging to
> /Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-tasktracker=
-Hoot-2.local.out
>
> There are 4 processes running:
> ps -fax | grep hadoop | grep -v grep | wc -l
> =A0 =A0 =A04
>
> They are:
> SecondaryNameNode
> TaskTracker
> NameNode
> JobTracker
>
>
> I've searched to see if anyone else has encountered this and not found
> anything
>
> Dave Kelsey
>