[CentOS] CentOS 6: Increase shared memory limits permanently

Alexander Farber wrote:
> Hello again,
>
> on CentOS 6 / 64 bit what is please the best way
> to permanently increase the shared memory?
>
> I'd like to give shared_buffers = 4096MB
> to PostgreSQL 8.4 on my machine with
> 16 GB RAM, but I currently only have:
>
>    # sysctl -A|grep shm
>    kernel.shmmax = 33554432
>    kernel.shmall = 2097152
>    kernel.shmmni = 4096
>
> and this produces the error in
>  /var/lib/pgsql/pgstartup.log:
<snip>
> And I wonder if I should set shmmax

Yes. As a point of information, you do this for Oracle as well.

        mark