Re: Psql: could not connect to server: No such file or directory

when you install PostgreSQL the installation copies all its binaries to
their respective places and tries to start the server afterwards.

This of course fails as the needed ports are already used by the running
old PostgreSQL server.

So you end up with a mixture of new and old.

No idea whether it will be enough to stop the running PostgreSQL and the
just restart the PostgreSQL service ..

robert

On 02.05.19 17:50, SAMMY CRISWELL wrote:
>
> Good morning,
>
> I am preparing to upgrade my pqsl server from 9.3.5 to 9.6.12. I have
> installed the 9.6 rpm onto the server that has 9.3.5 running. Postgres
> is still running 9.3.5 on that server, but when I try to run psql I
> get the following message.
>
> “psql: could not connect to server: No such file or directory
>
>         Is the server running locally and accepting
>
>         connections on Unix domain socket
> "/var/run/postgresql/.s.PGSQL.5432"?”
>
> The database is still running and working I just can’t use any of the
> client commands like psql, pg_dump….
>
> And there is no "/var/run/postgresql/.s.PGSQL.5432" file.
>
> Can someone help with this problem.
>
> *Sam Criswell*| Senior Systems Engineer I
>
> InfrastructureEngineering
> Intelligence, Information and Services (IIS)
>
> CityLine Phone: +1 972.664.8870*
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