| From: | Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at> |
|---|---|
| To: | "Kaushal Shriyan *EXTERN*" <kaushalshriyan(at)gmail(dot)com>, "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: PG replication across DataCenters |
| Date: | 2013-11-22 10:57:49 |
| Message-ID: | A737B7A37273E048B164557ADEF4A58B17C5ED75@ntex2010i.host.magwien.gv.at |
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| Lists: | pgsql-docs pgsql-general |
Kaushal Shriyan wrote:
> I have read on the web that Postgresql DB supports replication across data centers. Any real life
> usecase examples if it has been implemented by anyone.
Well, we replicate a 1 TB database between two locations.
It is a fairly active OLTP application, but certainly not
pushing the limits of what PostgreSQL can do in transactions
per second.
But I get the impression that replication is widely accepted
and used by now.
> Please also help me understand the caveats i
> need to take care if i implement this setup.
Don't use synchronous replication if you have a high transaction
rate and a noticable network latency between the sites.
Wait for the next bugfix release, since a nasty bug has just
been discovered.
Yours,
Laurenz Albe
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