[erlang-questions] Remove running node from mnesia cluster

[Martin Karlsson]

>
>
> Is there a way to take a node out of mnesia clustering while leaving it
> up-and-running?
>
>
Hi Kristoffer,

I'm no mnesia expert but I remember reading that to completely remove a
node you need to delete the schema on the "orphaned" node before starting
it again. Look under chapter 5.6 in mnesia user guide (
http://www.erlang.org/doc/apps/mnesia/Mnesia_chap5.html)

So your script would look like this:

   rpc:call('node_to_be_orphaned', mnesia, stop, []),
   mnesia:del_table_copy(schema, 'node_to_be_orphaned'),
   mnesia:delete_schema(['node_to_be_orphaned']),
   rpc:call('node_to_be_orphaned', mnesia, start, []).

Note that all data on the orphaned node will be lost.

Cheers,
Martin
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