One of my client is facing one issue the with PostgreSQL . The details are as follows .
1 . PostgreSQL version 7.4.8 is running on 2 Linux machine . One acting as a primary database server and another one is acting as a fail-over (secondary)server .
2. Primar & secondary servers are located at different locations
2. Using DBmirror utility to mirror the database from primary to secondary .
With above setup , the problem is , there is a 1 day delay between primary and secondary in the synchronization . That menas , if a client put a record in the primary , it will sync to the secondary with delay of 24 hours .
My question is , for above mentioned requirement , what is the currect way to solve the problem . I would like to know Is there any other way to solve this problem .
My idea is to implement DRBD to mirror the database between primary and secondary . But , i want to know can DRBD suite this requirement or not . And , is there any limitation while using DRBD in a WAN environment .