Did I say it wasn't readonly locked? I correctly lock all my access to reads
and writes, including every single isDefined() or cfset or anything. This
other thing is purely for investigative purposes. I'm trying to get a
thorough mental picture of how locking works (since Allaire docs about it
are too sparse IMO) and as such had to contrive this scenario. You can it
may take a ton of traffic, but it will fail. Can you test that for me on
your own box?
> -----Original Message-----
> From: Steve Nelson [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, April 25, 2001 3:24 PM
> To: Fusebox
> Subject: Re: the $5 bet - crash a server with unlocked application scope
> READs
>
>
> That CFIF statement should be readonly locked.
>
> You're going to shoot yourself in the foot trying to do this. It may
> take a ton of traffic, but without those locks you'll eventually crash
> your server.
>
> Steve Nelson
>
> Nat Papovich wrote:
> >
> > As a matter of fact I DO have a magical CF server that never
> crashes, Erik.
> > You have one too? It's an Amiga.
> >
> > To prove a point, I did not mention the <cfif not
> > IsDefined("application.var")> tag before the application read because I
> > wanted to imagine a case of ONLY reads.
> >
> > I might be seeming weird about it because I'm trying to get the
> skinny on
> > exactly how locking works - something that I'm not even sure
> Allaire knows
> > too much about. I think I pretty well have my noggin around it, but if
> > someone shows me the case of unlocked read-only access to a shared scope
> > variable causing problems, then it's back to the drawing board for me.
> >
> > NAT
> >
> > > -----Original Message-----
> > > From: Erik Voldengen [mailto:[EMAIL PROTECTED]]
> > > Sent: Wednesday, April 25, 2001 1:24 PM
> > > To: Fusebox
> > > Subject: RE: the $5 bet - crash a server with unlocked
> application scope
> > > READs
> > >
> > >
> > > > build. During some of this checking, I re-initialize the application
> > > > variables, for good measure. This is the only time the
> > > > application variables
> > > > ever get written. There is no code anywhere else to do it,
> > > > and I am always
> > > > the only one on the admin area.
> > >
> > > That sounds flakey. What if CF restarts? ba-bye application
> variables.
> > > Perhaps you have a magical machine with 100% up time?
> > >
> > > A read-only lock only adds overhead if there is an exclusive lock on
> > > the scope. Out of curiosity, why are you being so wierd about it?
> > >
> > >
> > >
> > >
> > >
> > >
> >
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