Re: running two servers on one machine

Eric Smith  writes:
> Yes, if I start one, but not the other, the process works just great.   
> It's only when trying to run both that I have a problem.

Have you looked into the postmaster logfile?

One likely idea is that you don't have shmall cranked up high enough
for two servers, which'd result in something like

FATAL:  could not create shared memory segment: Cannot allocate memory

in the postmaster log.

			regards, tom lane