Andre,
Thanks so much for taking the time to answer me.   The whole Lua environment is 
quite new to me and so I'm not sure I understand your answer fully.

Since lots of my clients need to run shortest-path queries in parallelI, it 
sounds like you are recommending CGI for my particular situation??  Am I 
correct about that??

If I followed your advice, and created this deamon process, what would I write 
it with and how would it be able to obtain read-only access to these two large 
tables in my main Lua process??

Do you know of any articles or tech specs I can read to understand how to do 
this?

I'm also unclear why Rings won't work?  It it because a Rings can't access the 
memory/tables of their master?

Thanks so much for your guidance,
Dewey


On Mar 7, 2010, at 7:42 AM, Andre Carregal wrote:

> Well, if you really need to go CGI, maybe you should consider having a
> deamon process running in parallel and handling the connection with
> your graph. Then the CGI processes could connect to the deamon (say,
> using sockets) and ask for data for the analysis.
> 
> OTOH, if you decide to not go CGI, your process would be already
> persistent so the graph would be in memory all the time. In that case
> you could use Rings to allow separation of requests, but only if that
> was needed.


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