I hoped that it would be easier to get the nodes back in sync but it seems that all Postgres Multi-Master solutions are not reliable at the moment. I've planed to test CyberCluster this weekend but I already suspected that this rsync solutions have some shortcomings. Sniff...
It seems that we have to wait for PGCluster-II which isn't a "shared nothing" solution. Instead all files are on a shared medium like SAN or iSCSI and all instances uses this medium (similar to Oracle). Robert CG wrote:
I've been testing Cybercluster (which is a modified PgCluster) ... I have two back-end databases, one load balancer, and one replicator. I've been testing failover and rebuilding a degraded cluster, and I'm finidng that it is REALLY easy for the two back-ends to get out of sync with each other. This is very disturbing. I was wondering if anyone has experience with solving this problem.
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