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List:       asterisk-dev
Subject:    Re: [asterisk-dev] chan_sip - performance,	and OPTIONS poking for
From:       Ryan Mitchell <rjm () tcl ! net>
Date:       2006-11-27 18:46:07
Message-ID: 456B326F.8080105 () tcl ! net
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>>
>> I have one system with ~ 3400 peers registered on the box (Asterisk
>> 1.2.10),
>
> With or without realtime?
Without.


> Please check the bug tracker if you find a similar situation reported.
I don't find anything apparent with the same symptoms. I'll recompile
with DEBUG_THREADS and see if I get any useful error messages; the more
data I collect the more likely I can recognize similarity to problems
others have reported.

> For registrations and subscriptions, we do have open bug reports.
> My idea is to set a maximum limit on number of register/subscribe
> requests
> we handle at a given time and send the rest an error message with a
> retry-after header to ask them to come back later.
Yes, that sounds like a very good idea. There are a lot of malconfigured
UACs out there, not to mention the possibility of a denial-of-service
attack. I am using a patch from 1.4 to set the 'minexpiry' so I can
override any ridiculous REGISTER requests with unreasonable Expires
field, and that helps some.

--Ryan


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