[Pgcluster-general] Initial Configuration Questions

[a.mitani at sra-europe.com]

Hi,

> For the purposes of a production environment, it is obviously best
> practice to place the load balancer, db 1, db 2 and the replication
> server on separate boxes, but in a test scenario, can we use two boxes,
> each with two functions? e.g. Server 1 could be the load balancer and
> db1 , while server 2 could be db2 and the replication function?  This is
> just for proof of concept to get everything working...

If application server (like a web server) also including those two server,
it is possible to create environment with all inclusive.

Of course, it is poosible to divide the application server and the DB server.


EX1.(all inclusive)
                          |
            +-------------+------------+
            |                          |
  +----(server_1)----+        +----(server_2)----+
  |  Web1            |        |   Web2           |
  |  Load Balancer1  |        |   Load Balancer2 |
  |  Cluster DB 1    |        |   Cluster DB 2   |
  |  Reeplicaer 1    |        |   Replicater 2   |
  +------------------+        +------------------+

EX2.(divide app & DB)
                          |
            +-------------+------------+
            |                          |
  +--(app server_1)--+        +--(app server_2)--+
  |  Web1            |        |   Web2           |
  |  Load Balancer1  |        |   Load Balancer2 |
  +---------+--------+        +--------+---------+
            |                          |
          --+--------------------------+--
            |                          |
  +---(DB server 1)--+        +---(DB server 2)--+
  |  Cluster DB 1    |        |   Cluster DB 2   |
  |  Reeplicaer 1    |        |   Replicater 2   |
  +------------------+        +------------------+

Regards,
----------------
At.Mitani