Re: Which replication is the best for our case ?

On 06/29/2015 06:02 AM, ben.play wrote:
> Hi guys,
>
> We have a PG database with more than 400 GB of data.
> At this moment, a cron runs each ten minutes and updates about 10 000 lines
> with complex algorithms in PHP.
>
> Each time the cron runs, the website is almost down because some queries
> have to make an update on the FULL table...
>
> Therefore, I'm asking if it's possible to duplicate my main database on a
> slave server in order to run these cron on this second server... then,
> replicate these changes on the main database (master).

So you want the replication to go from the standby back to the master?
If that is the case, it is not possible.

>
> Which replication is the best in this case ?
>
> http://www.postgresql.org/docs/9.3/static/warm-standby.html ?
>
> Do you have any links or tutorial which explain this kind of operation ?
>
> Thanks a lot !
>
>
>
> --
> View this message in context: http://postgresql.nabble.com/Which-replication-is-the-best-for-our-case-tp5855685.html
> Sent from the PostgreSQL - general mailing list archive at Nabble.com.
>
>

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