On Thu, Jul 14, 2011 at 4:33 AM, Daniel Kahn Gillmor
<dkg at fifthhorseman.net> wrote:
> <stdin>:8: Error: namespace "_foo" already exists in database of node 4
>
>
> This is true, because the node was set up before, but apparently wasn't
> properly registered with the other nodes (or i broke the registration
> somehow).
>
> If i try the following slonik command:
>
>  drop node (id = 4, event node = 1);
>
> Then i get:
>
> <stdin>:6: PGRES_FATAL_ERROR select "_foo".dropNode(4);  - ERROR:
> Slony-I: unknown node ID 4
> <stdin>:8: Failed to drop node 4 from cluster

   try to remove the slony schemas by hand and then recreating the
node. as long as your data is still in your master you should not lose
anything.