Re: multiple databases vs multiple clusters on the same host - Mailing list pgsql-general

From John R Pierce
Subject Re: multiple databases vs multiple clusters on the same host
Date
Msg-id 5247212F.9050602@hogranch.com
Whole thread Raw
In response to Re: multiple databases vs multiple clusters on the same host  ("Tomas Vondra" <tv@fuzzy.cz>)
List pgsql-general
On 9/28/2013 11:29 AM, Tomas Vondra wrote:
> There are probably some corner cases where this might improve the
> performance, but in most cases it's going to be worse. Why are you
> switching to multiple clusters?
>
> For example consider that you'll probably have to use much smaller shared
> buffers (which might cause issues on the active database, while the other
> databases don't use their portion of memory), you'll have to either use
> much smaller max_connections or decrease work_mem (you can't just keep the
> values because then you might run into OOM much more frequently) etc.

indeed, 10 separate checkpoint processes going off asynchronously, meh.



--
john r pierce                                      37N 122W
somewhere on the middle of the left coast



pgsql-general by date:

Previous
From: Henrik
Date:
Subject: recovery from incomplete backup (pgsql 8.3)
Next
From: Adrian Klaver
Date:
Subject: Re: PostgreSQL 9.2.4 temp files never released?