Re: [TIPS] Tuning PostgreSQL 9.2

On Mon, Apr 11, 2016 at 9:17 PM, drum(dot)lucas(at)gmail(dot)com
<drum(dot)lucas(at)gmail(dot)com> wrote:
>
>
> On 12 April 2016 at 13:55, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> wrote:
>>
>> On Mon, Apr 11, 2016 at 6:20 PM, drum(dot)lucas(at)gmail(dot)com
>> <drum(dot)lucas(at)gmail(dot)com> wrote:
>> >>
>> >>
>> >> pgbouncer is kinda happy living almost anywhere.
>> >>
>> >> Putting it on separate vms means you can reconfigure when needed for
>> >> say another db or web server without having to edit anything but the
>> >> pgbouncer vms.
>> >>
>> >> Putting it on the db servers means that if a db server goes down then
>> >> you need to reconfigure the app side to not look for them
>> >>
>> >> Putting them on the app side means you have to configured according to
>> >> how many app servers you have etc.
>> >>
>> >> It all really depends on your use cases. but putting it on the www
>> >> servers works fine and is how I've done it many times in the past.
>> >
>> >
>> > Thanks for the reply...
>> >
>> > But as I'm using two web servers, do I have to put pgbouncer on both of
>> > them?
>> >
>> > Not sure how is going to work as I have two web servers
>>
>> Either way will work. The advantage to having one on each is that
>> connections are simpler to configure and if one goes fown you still
>> have pgbouncer running
>
>
> hmm ok..
>
> So basically would be:
>
> 1 - Install the pgbouncer into the www server
> 2 - Do the tests to see if it works
> 3 - Change the APP connection parameters to start using pgbouncer (probably
> just the port)
>
> Basically would be that, right?
>
> Would my slave01 still be able to work as read-only?

Yes.