[Pgcluster-general] standalone postmaster

[At.Mitani]

> 1. if my replicator is down, is it possible i just copy data directory
> from cluster then preparing new replicator ?

Does the replicator mean replication server?
If so, there is not need to copy data directory to new replication server.
When you prepared two replication servers, second replication server takes over automatically if master replication server failed down.

If you means Cluster DB.
When you re-start the cluster DB with -R option, 
it sync db data directory from master Cluster DB automatically.

> 
> 2. is there any trial on 5 cluster. is it running well as 3 cluster ?

I tested with more than 5 cluster DBs.
However, performance point of view, the suitable number of cluster db is depend on the hardware/network and variety of query types.

When you want to provide db service even during recovery/add a cluster db, three or more cluster dbs are required (and one or more load balancer) in your system.
But this is a different story from performance.


Regards,
-- 
At.Mitani <mitani at sraw.co.jp>