Modifying hadoop configuration files on a Windows Machine == TROUBLE!!!

Ok, so I have all of our hadoop configuration files in subversion, and I have a cron job that runs every minute to sync up the puppetmaster's copy to what is in svn, and then touch the site.pp file so that all of the puppet agents eventually get the changes that have been committed to our revision control system. It works really well, and I like the fact that I can work on configuration files on my own machine without having to PuTTY into another machine and having to work with nano or vi (which are great programs, just not as convenient as notepad or EditPlus).

That said, one must be careful to not lose the "LINUX"ness from the files if you decide to modify these guys on a windows box, using tortiseSVN and a windows text editor.

You will see an error like the following when you attempt to start your services:

[root@HANODE2 ~]# service hadoop-0.20-datanode restart
Stopping Hadoop datanode daemon (hadoop-datanode): /etc/hadoop-0.20/conf/hadoop-: command not found
: command not foundnf/hadoop-env.sh: line 7:
......
: command not foundnf/hadoop-env.sh: line 52:
no datanode to stop
[ OK ]
Starting Hadoop datanode daemon (hadoop-datanode): /etc/hadoop-0.20/conf/hadoop-: command not found
: command not foundnf/hadoop-env.sh: line 7:
......
: command not foundnf/hadoop-env.sh: line 10:
: command not foundnf/hadoop-env.sh: line 52:
/hadoop-hadoop-datanode-HANODE2.outlog/hadoop
: command not foundnf/hadoop-env.sh: line 2:
......
: command not foundnf/hadoop-env.sh: line 49:
: command not foundnf/hadoop-env.sh: line 52:
Exception in thread "main" java.lang.NoClassDefFoundError:
Caused by: java.lang.ClassNotFoundException:
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
. Program will exit.in class:
[ OK ]

The one-time fix is easy, just make the following call on your hadoop configuration files:

dos2unix /etc/hadoop/conf.MYCONFIGURATION/*

Though this does not scale well with the number of machines that your configuration will be deployed to in your cluster, so we have two options here:

1) Use a text editor that is linux file friendly
2) Add a step to the download on the puppetmaster that makes these files "linux"ee again before the agents get a chance to grab the latest changes.

I've chosen to simply add the following lines to my cron script so that on download of the latest from SVN, the files are forced into linux format for all to love:

dos2unix -q /etc/puppet/modules/hadoop/files/*
dos2unix -q /etc/puppet/modules/hadoop/files/conf.my_cluster/*
dos2unix -q /etc/puppet/modules/hadoop/manifests/*
dos2unix -q /etc/puppet/modules/hadoop/manifests/classes/*