I wrote: > Alan Hodgson wrote: > > On Thu, 2018-02-15 at 18:21 -0600, Azimuddin Mohammed wrote: > > > Hello, > > > I am unable to start postgres on one of the server > > > I am getting below error "HINT: is another postmaster already running on port 5432, if not wait a few seconds and retry" > > > I checked the processes nothing is running with postgres > > > > > > I think the error caused because I removed everything under /data directory before stopping the server. > > > Can someone help. > > > > kill -9 the old processes. The old postmaster is holding onto the port. > > And probably some of the old file handles, too, so you might want to re-init the new database > > cluster after really cleaning up the old one. > > This seems excessive - maybe the server he wants to start is already > running and there is no need to crash or wipe it.
Apologies - I didn't see the part that "nothing is running".
To find the process that is blocking the port, you can run the following: