Hi, Installed 0.22.0 on CentOS 5.7. I can start dfs and mapred and see their processes.
Ran the first grep example: bin/hadoop jar hadoop-*-examples.jar grep input output 'dfs[a-z.]+'. It seems the correct jar name is hadoop-mapred-examples-0.22.0.jar - there are no other hadoop*examples*.jar files in HADOOP_HOME. Didn't work. Then found and tried pi (compute pi) - that works, so my installation is to some degree of approximation good. Back to grep. It fails with > java.io.FileNotFoundException: File does not exist: /user/MyId/input/conf Found and ran bin/hadoop fs -ls. OK these directory names are internal to hadoop (I assume) because Linux has no idea of /user. And the directory is there - but the program is failing. Any suggestions; where to start; etc? Thanks - Pat
