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From: mazu@DMI.USherb.CA (Marc Mazuhelli)
Subject: Problem with the Postgres backend
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To: postgres@postgres.Berkeley.EDU
Date: Tue, 19 Nov 91 22:17:51 EST
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Hi there,
 
I'm pretty new to Postgres.  I'm the system administrator of a network
of Sun computers in the department of math and computer science.
 
I have installed Postgres version 3 and it's beginning to get used by
our students.  Today I had a problem that I couldn't resolve and I am
asking for your help.
 
A few users came and told me that they had the message that "the backend
is not responding".  Thinking that the backend is the process started
with the postmaster command, I did a "ps aux|grep postmaster" and saw
that it was running.
 
So I decided to restart it.  I did a "su - postgres" followed by "cd
bin" and "postmaster &" and received a message like "can't bind to
port".  I said "of course, the old postmaster is still there", so I
killed it and tried to restart it but had the same message everytime I
tried: "can't bind to port".  And since I had killed the old postmaster,
I was stuck with no postmaster at all!
 
I even tried a "ipcclean" (or something like that) and it didn't fix
the problem.
 
I guess that if I had rebooted the machine, it would have fixed the
problem, but I hope there's a less drastic way of fixing that problem
and if so, I want to learn it!
 
I am running postgres version 3 on a Sparc Station 2 using SunOS 4.1.1.
 
Thank you very much for your help.

-- 
{  Marc Mazuhelli                 |  analyst in charge of computer labs     }
{  internet: mazu@dmi.USherb.CA   |  Departement of math and comp. science  }
{  <this space intentionaly ..    |  Universite de Sherbrooke               }
{                 ... left blank> |  Sherbrooke, Quebec, Canada             }
