I suppose I will have to manage throttling with some kind of completely external process, which is likely to be cumbersome. For the immediate application, and given my current facilities, single threading will be adequate (and necessary), but from what I've seen, even this could be challenging. If I put together anything generally useful, I'll share it.
From: "Scott Stingel" <[EMAIL PROTECTED]>
Hi Bill-
I've built some load testers for asterisk, using the outgoing call facility.
It's been a little while, so you may want to test this yourself, but I recall finding a couple of problems:
(a) I don't think it manages queuing very well if there are a limited amount
of outbound resources. For example (again, from memory), if you define a
group ("g9" for example) of two lines for use in outbound calling, it works
fine if the number of outbound calls to be made at any moment never exceeds
2. A third call file in this example, will be grabbed by asterisk, but will
fail immediately. So I had to create a mechanism in my Perl script to
ensure that the outbound calls actually completed - no easy feat since I
couldn't tell when that occurs from the perl script too easily.(b) There was a problem dumping more than about 12-15 outbound calls at once in the outgoing directory, even if there were plenty of channels available to make the calls. Asterisk would grab them but would not process some of them. This is a load-testing scenario, and not too common I realise, but something to be aware of. It didn't seem to matter if I switched to a more powerful processor.
These problems occurred using a December release of asterisk - maybe they are fixed now??
Please let me know if you are doing any load testing, and I'll send you some simple scripts if you like.
The outgoing facility works fine at lower call volumes, if you stagger the creation of the files in the outgoing directory.
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