At 18:14 26/03/2008, Melvin Davidson wrote:
>I must disagree with that answer. I can understand 1 backend, but 5 ?
>I only have 1 slave, so 5 processes is excessive.

The slon process (the one that is really active) actually has several 
threads performing various tasks. Each of these threads connects to a 
local or remote postgres backend to do its work. There are worker, 
listener, cleanups threads and more that I forget, so you have many 
threads (check out with ps -axlH or the equivalent for your OS), and 
hence many backends.

>Finally, as stated before, this did not occur when I was using Slony 1.1.2
>There were no extra processes at all then.

You may not have seen them (because you weren't using user "slony" 
and it didn't show up in "ps -axl | grep slon" maybe?), but they were 
most definitely there. It is totally impossible slony could be 
performing any kind of replication without any connections to postgres!

Jacques.