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From: Alan Hodgson <ahodgson@lists.simkin.ca>
To: Postgres General <pgsql-general@postgresql.org>
To: pgsql-admin@postgresql.org
Subject: Re: postgres not starting
Date: Thu, 15 Feb 2018 16:54:20 -0800
Message-ID: <1518742460.11219.15.camel@lists.simkin.ca> (raw)
In-Reply-To: <CAKUuFd7qfEmH9zBDJEYb8zgyfiAob0XdvL+cm73MbUseHzHpyA@mail.gmail.com>
References: <CAKUuFd7qfEmH9zBDJEYb8zgyfiAob0XdvL+cm73MbUseHzHpyA@mail.gmail.com>

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.

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