classpath issue ?

[Damien Cooke <Da...@internode.on.net>]

Hi All,
I have a perplexing classpath issue I think.  I am trying to run the  
generateData.sh script from gridmix.  I get the following

Hysteria:gridmix damien$ ./generateData.sh
Hysteria:gridmix damien$ Mkdirs failed to create /volumes/backup-5/ 
cloud-data
Mkdirs failed to create /volumes/backup-5/cloud-data
Mkdirs failed to create /volumes/backup-5/cloud-data
Mkdirs failed to create /volumes/backup-5/cloud-data


Ok well I have seen this before.  If I add the class to the  
HADOOP_CLASSPATH in the $HADOOP_HOME/conf/hadoop-env.sh this has fixed  
this issue before.  However this time it has not.  So do the sanity  
check and see if I can run the actual class below is the output:

Hysteria:Hadoop damien$ hadoop   
org.apache.hadoop.examples.RandomTextWriter
randomtextwriter [-outFormat <output format class>] <output>
Generic options supported are
-conf <configuration file>     specify an application configuration file
-D <property=value>            use value for given property
-fs <local|namenode:port>      specify a namenode
-jt <local|jobtracker:port>    specify a job tracker
-files <comma separated list of files>    specify comma separated  
files to be copied to the map reduce cluster
-libjars <comma separated list of jars>    specify comma separated jar  
files to include in the classpath.
-archives <comma separated list of archives>    specify comma  
separated archives to be unarchived on the compute machines.

The general command line syntax is
bin/hadoop command [genericOptions] [commandOptions]


Ok so this proves that the jar is in the classpath and the classes are  
available. Cool so I try to run it from the jar again

Hysteria:Hadoop damien$ hadoop jar $HADOOP_HOME/hadoop-0.21.0-dev- 
examples.jar randomtextwriter
Mkdirs failed to create /volumes/backup-5/cloud-data

mmm no joy.

Any suggestions?

Regards
Damien




"We act as though comfort and luxury were the chief requirements of  
life, when all that we need to make us happy is something to be  
enthusiastic about."

-- Albert Einstein