How to set up an ejabberd cluster on Amazon EC2 in 6 easy steps
1) Edit /etc/init.d/ejabberd
You need node=`hostname -f` since `hostname -s` does not work here.
2) Edit /etc/init.d/ejabberd
Use -name ejabberd@$node instead of -sname ejabberd everywhere. This applies to -sname ejabberdctl as well.
3) Edit /etc/init.d/ejabberd add mnesia_extra_db_nodes
See the start() function, find the line that says -detached and add the following right above
-mnesia extra_db_nodes \"[' ... hostname -f of a running node ... ']\"
4) Remove the Mnesia db tables
cd /var/lib/ejabberd/spool && rm -f *
5) Edit /etc/ejabberd/ejabberdctl.cfg
Make sure you have this at the very end
ERLANG_NODE=ejabberd@`hostname -f`
6) Make sure your .erlang.cookie files are the same on all nodes
This will work with MySQL. Enjoy!
