> How can I configure Slony to send some notification – an email, call a
> URL, run a program, flash something red on the screen, anything
> whatsoever – if it encounters a replication problem?

That's outside the purview of Slony, but there are other simple ways 
to accomplish it. Easiest would probably be to use the check_postgres 
program with the "replication_row" or "slony_status" actions. If 
you already have Nagios, you'll be done in about five minutes.

http://bucardo.org/check_postgres/check_postgres.pl.html

-- 
Greg Sabino Mullane greg at endpoint.com
End Point Corporation
PGP Key: 0x14964AC8
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