hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Dave Kelsey <da...@gamehouse.com>
Subject datanode failing to start
Date Thu, 05 Jan 2012 18:25:24 GMT

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.jar 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-Hoot-2.local.out
localhost: starting datanode, logging to 
/Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-datanode-Hoot-2.local.out
localhost: Exception in thread "main" java.lang.NoClassDefFoundError: server
localhost: Caused by: java.lang.ClassNotFoundException: server
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: starting secondarynamenode, logging to 
/Users/admin/hadoop/hadoop-0.20.203.0/bin/../logs/hadoop-root-secondarynamenode-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
       4

They are:
SecondaryNameNode
TaskTracker
NameNode
JobTracker


I've searched to see if anyone else has encountered this and not found 
anything

d

p.s. I've also posted this to core-user@hadoop.apache.org which I've yet 
to find how to subscribe to.


Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message