Re: Using Threads?

> 
> On Mon, 4 Dec 2000, Junfeng Zhang wrote:
> 
> > All the major operating systems should have POSIX threads implemented.
> > Actually this can be configurable--multithreads or one thread.
> 
>   I don't understand this.  The OS can be configured for one thread?  How
> would that be any of use?
> 
> > Thread-only server is unsafe, I agree. Maybe the following model can be a
> > little better. Several servers, each is multi-threaded. Every server can
> > support a maximum number of requests simultaneously. If anything bad
> > happends, it is limited to that server. 
> 
>   There is no difference.  If anything bad happens with the current
> multi-process server, all the postgres backends shutdown because the
> shared memory may be corrupted.

Yes.  Are we adding reliability with per-process backends.  I think so
because things are less likely to go haywire, and we are more likely to
be able to clean things up in a failure.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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