Re: PG replication across DataCenters

Thomas Harold <thomas-lists(at)nybeta(dot)com> wrote:

> On 11/22/2013 5:57 AM, Albe Laurenz wrote:
>> 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.
>>
>
> Something that section 25 in the pgsql documentation is not clear about
> for hot-standby with WAL log shipping using the built-in streaming:
>
> Can you choose which databases / tables on the master server get
> streamed to the hot-standby read-only server at the remote site? If
> not, I suspect we'll have to go with either Slony or Bucardo.

WAL's contains transaction informations for the whole cluster, you can't
choose particular databases or tables.

Andreas
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