Scalability challenges

Our Application Data is getting bigger and bigger.
This data growing is our challenges.

I need a replication on our Postgresql database.
Please give us advice.

Database Replication on Postgresql

Its already become a major issue, since our data growing faster, 2GB each year in average until this day. I predict next year, we will have around 3GB growing data each year. Thats big enough.

By looking the type of application we developed, we realy think we need multi-master replication on our database. Planned to install a DB server on each site and use replication mechanism to handle the data.

So, please, if anyone know a OSS tools to do multi-master replication for Postgresql-DB, let me know okay ?

Postgresql Replicator

looking for Postgresql replication tools.
message me if you knew one of it.