On Wed, 2003-02-26 at 07:08, Tom Lane wrote:
> Back when I was working for Great Bridge and got to spend a fair amount
> of time at trade shows talking to potential customers, the thing we
> heard over and over again was that people wanted multiple servers for
> reliability/redundancy. That goal seems to me to be best served by a
> symmetric multi-master configuration, which is difficult if not
> impossible to do with async replication.
I'm glad to hear that PG is heading in that direction. Think of it this
way: the entire reason we use databases instead of a mess of text files
is because of the benefits we get in terms of data consistency. ACID
forms the foundation for a reliable service, whether it's financial
transactions or a chat room. It is difficult or impossible to maintain
ACID in an async situation, I believe.
Sync is actually much more useful because it lets a business have a
cluster of servers without having to worry about what state things are
in.
