On Mon, 13 Jan 2003, Perrin Harkins wrote:
> John Siracusa wrote:
> > But in a full-fledged mod_perl solution, I could back out gracefully and
> > retry another server if I happened to initially choose a dead server before
> > my dead server detection code caught it.
>
> That sounds cool, but how important is it really? I'm not sure any of
> these solutions (including the commercial ones) do that level of
> seamless failover effectively.
True, I think. They just keep a table of live and dead servers, but a
request can often get assigned to a dead server before the table is
updated.
In practise this wasn't a problem for us. far more imprtant is that the
'sticky' feature work consistently, so that -- barring a server dying --
clicks-through go to where the impression data are stored (or whatever :)
- nick
~~~~~~~~~~~~~~~~~~~~
Nick Tonkin {|8^)>
