yes
On Mon, 6 Aug 2001, Yager, Brian T Contractor/NCCIM wrote:
> So, what you are saying is put a lock around ALL thing reguarding Session
> variables (Read, write, etc)?
>
> -----Original Message-----
> From: Dave Watts [mailto:[EMAIL PROTECTED]]
> Sent: Monday, August 06, 2001 3:44 PM
> To: CF-Talk
> Subject: RE: Any horror stories from not locking session vars?
>
>
> > I have been asked to do a code review of a site and I have
> > found that the developers don't bother to lock session variables
> > when then read or write them. Does anybody have an good horror
> > stories about the dangers of doing this so I legitimately show
> > the customer why this is a problem. He is a nontechnical person
> > so any talk of needing to single-thread processes when using
> > shared variables won't mean a thing to him. Since I always lock
> > around the variables I can't give him any personal horror stories.
> > Perhaps some of you have heard of some (I KNOW they won't come
> > from YOUR sites because you always follow best practices ;-) but
> > maybe you inherited some.)
>
> As someone who spends a lot of time reviewing the applications of others, I
> can tell you that I've seen several occurrences where the omission of proper
> locking of session variables caused applications to fail under load. For the
> most part, NDAs prevent disclosure of further detail, but if your client
> wants to pay someone like me lawyers' rates to fix an application after a
> failed deployment, rather than having it done right the first time, that's
> fine by me.
>
> However, just because he's a non-technical person, you should be able to
> explain the basic problem to him enough for him to understand it. You can
> use the classic "ATM machine" example typically used to explain concurrency
> and basic transactional logic.
>
> Dave Watts, CTO, Fig Leaf Software
> http://www.figleaf.com/
> voice: (202) 797-5496
> fax: (202) 797-5444
>
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