Re: Performance hit if I create multiple DBs on same instance

On 11/24/20 7:33 AM, David Gauthier wrote:
> Ok, thanks.
>
> I was also planning on manually running vacuum, reindex and analyze on
> the main DB after removing the data from the main DB after archiving.
> Does that sound necessary and reasonable ?

Sounds reasonable.

>
> On Tue, Nov 24, 2020 at 10:15 AM Adrian Klaver
> <adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>> wrote:
>
> On 11/24/20 6:36 AM, David Gauthier wrote:
> > Hi:
> >
> > 11.3 on linux
> >
> > I've come up with a plan to archive data from my main DB which
> involves
> > creating other DBs on the same server.  But even though there
> will be
> > zero activity on the archive DBs in terms of
> insert/update/delete, and
> > almost no activity in terms of select, I'm still worried that the
> mere
> > existence of these other DBs will steal resources away from the
> instance
> > and degrade performance in my main DB. So my question is whether
> or not
> > that worry is valid or not.
>
> The primary resource I see they taking is storage. If you have adequate
> space so that the primary and archive databases can grow into it then I
> don't see a problem on that score. There will also be some additional
> overhead for the automatic VACUUM and ANALYZE operations. Since the
> archive databases are quiescent that will be on the order of monitoring
> not really processing.
>
> >
> > Thanks in Advance for any help !
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com