[OpenSIPS-Users] Odd opensips REGISTER/INVITE behavior for many simultaneous users

[Bogdan-Andrei Iancu]

James,

Old registrations should not be the problem - your problem (as I
understand it) is missing registration, not too many :)...

BTW, for the failed calls, do you get a 404 not found from scrip or a
408 timeout ?

If you consider it, I can send you a script with an extension of usrloc
to log when a new AOR is added or when a whole AOR is removed, so you
can use it to doublecheck if your registrations are continuous in time .

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com


On 05/16/2013 09:36 PM, James Tranovich wrote:
> Hello Bogdan,
>
> Thanks for your reply! We are using opensips 1.8.0-notls (x86_64/linux).
>
> We do not think this issue is load related but perhaps older
> registrations have not yet expired. We will try setting the
> min_expires parameter to a low number to test this hypothesis; any
> other approaches we could try?
>
> Thanks once again!
>
> James
>
>
> On Thu, May 16, 2013 at 1:53 AM, Bogdan-Andrei Iancu
> <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>
>     Hello James,
>
>     No, there is no such known bug or issue. What I suspect is that
>     there are short intervals (milisecs) where an AOR is not
>     registered - this may happen because :
>         - the test tool is not performing properly under high load and
>     fails to do re-register before old registration expires.
>         - OpenSIPS is overloaded (too few processes ?) and it is not
>     able to process traffic in realtime (check the LOAD related
>     statistics).
>
>     What OpenSIPs versions are you using ?
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>     OpenSIPS Founder and Developer
>     http://www.opensips-solutions.com
>
>
>     On 05/15/2013 01:56 AM, James Tranovich wrote:
>>     Hello all --
>>
>>     First, we love opensips :)
>>
>>     Lately, we have been running into a strange issue which seems to
>>     be related to handling a ton of REGISTER messages. Basically, we
>>     have a test script that tries to simulate about 50 to 100
>>     simultaneous calls; they all register en masse and then randomly
>>     start placing calls to another test number (after a random time
>>     interval). Every once in a while, though, an INVITE won't go
>>     through because opensips apparently can't find that phone number.
>>     Oddly enough, if we do an "opensipsctl online" immediately
>>     before/after, that command shows that, in fact, the recipient's
>>     number is present and presumably already registered. SIP
>>     logs/ngrep tracing confirm this.
>>
>>     I was wondering if this is a known bug. This behavior only
>>     happens when registering a certain number of calls at once; if we
>>     test with a low number of calls (10, say), this behavior does not
>>     happen. It may be that we are spamming opensips with too many
>>     REGISTER messages (authentication is required, so two REGISTER
>>     messages are sent, the first w/o auth, the second with auth). But
>>     I don't see why opensips should have problems with this.
>>
>>     Any thoughts on this? Is this a known issue already? (Searching
>>     for this issue didn't yield much). Thanks!
>>
>>     James
>>
>>
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>
>
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