[Asterisk-Users] Nested MySQL Commands

[Douglas Garstang]

Well, is Perl DBI thread-safe for a start???

-----Original Message-----
From: Leo Ann Boon [mailto:leo at datvoiz.com]
Sent: Wednesday, January 11, 2006 5:32 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Nested MySQL Commands


Douglas Garstang wrote:

>So I really wish there was some way to measure how well the worst case scenario would perform. This would be 120 simultaneous calls (don't know how many per second) on a Dual 3.8Ghz Dell PowerEdge 1850 with 2GB RAM. Asterisk would call an AGI script, written in perl, to route all calls. The script would have to perform multiple database queries in order to route a call.
>  
>
Why don't you use FastAGI? Run the lookup 'script' as a standalone 
application communicating with Asterisk through sockets. Once you're 
decoupled from the process forking model, you can implement all those 
nifty thread, connection pooling tricks. You'll probably need to use 
stored procedures on the SQL side. You should also do some traffic 
modeling to optimize the resource planning. I don't really think you 
need 120 threads to handle the load. In traditional PBX, when using 
host-based routing (or so-called adjunct routing) you get a grace period 
of about 4 seconds to route the call. Time to dig out the erlang-c 
calculator :).



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