Re: PostgreSQL, clusters and load-balance

Bill Wordsworth wrote on 25.03.2008 21:04:
> On Tue, Mar 25, 2008 at 2:24 PM, Thomas Kellerer <spam_eater(at)gmx(dot)net> wrote:
>
>> Bill Wordsworth wrote on 25.03.2008 19:16:
>>> When traffic goes up, my webserver creates multiple instances of
>>> postgresql.exe. At some basic level, aren't they similar to Oracle's RAC
>>> "clusters", except that they are not aware of each other?
>> No, absolutely not. Each client request is handled by a single postgres
>> process
>> which is spawned by the postmaster upon connection.
>
> Thanks Joshua and Thomas. I guess my ignorance is showing :). Anyway, is
> this spawning being done by postmaster or webserver or both?

By the postmaster - for every connection initiated by the "client" (connection
pool in the app server, richt client, ...)

Thomas