Обсуждение: PostgreSQL Replication

Franklin Haut <franklin.haut@gmail.com> wrote:

> I have a doubt about replication, hopefully they can help me. I
> have several databases all in version 9.2, geographically
> distant, as in the example below:
> 200.xxx.xxx.1
>     database1 (260GB)
>     database2 (20GB)
> 200.xxx.xxx.2
>     database3 (60GB)
>     database4 (10GB)
> 200.xxx.xxx.3
>     database5 (200GB)
>     database6 (500GB)
> 200.xxx.xxx.4
>     database7 (200GB)
>     database8 (3GB)
> I need to replicate databases
> (database2, database4, database5, database6, database7) to
> another 230.yyy.zzz.5 server only for backup, no insert, update
> or delete command.
> Some times can be the downfall of Internet link
> 230.yyy.zzz.5  
>     database2
>     database4
>     database5
>     database6
>     database7
> Is there way to implement this replication?

You can't use the built-in streaming replication to replicate
selected databases in a cluster, but if you use separate clusters
on the master that would be an option.  Otherwise you need a
"logical" replication solution rather than one geared toward the
page level.

http://wiki.postgresql.org/wiki/Replication,_Clustering,_and_Connection_Pooling

--
Kevin Grittner
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company