Sync'ing ejabberd nodes at startup

Answer 1

Try the -eval argument for erl:

erl -name NODE1 -mnesia extra_db_nodes "['MASTER']" -eval 'mnesia:start(), mnesia:change_table_copy_type(schema, node(), disc_copies), init:stop()'

That might need an mnesia:wait_for_tables in there somewhere to ensure that it has time to join the cluster before doing the change_table_copy_type.