| From: | Peter Korsgaard <jacmet(at)control(dot)auc(dot)dk> |
|---|---|
| To: | Steve Wolfe <steve(at)iboats(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Database cluster? |
| Date: | 2000-11-30 22:15:31 |
| Message-ID: | Pine.GSO.4.21.0011302313340.10266-100000@brille.control.auc.dk |
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| Lists: | pgsql-general |
On Thu, 30 Nov 2000, Steve Wolfe wrote:
> The tough part is syncronicity, should one of the machines drop out of the
> cluster and need to be re-added without bringing the others down. In order
> to get around that, each query needs to be logged on the master node with a
> timestamp, so that the failed node can "catch up" in real-time. That brings
> about other considerations, as well....
Exactly! Thats also why I have decided not to implement that feature as
the deadline is in 3 weeks ;) If a database server fails it is simple
discarded from the cluster and can only be reconnected by taking the
system offline and doing the syncronisation manually.
--
Bye, Peter Korsgaard
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