RE: Can dialogs be used safely?

Hi Ranga,

Well, I could not find any thread pool issue. But the only suspicious
thing I am considering so far is the fact that to be able to run my
service I am forcing the AUTOMATIC_DIALOG_SUPPORT property to be set to
on at the SIP RA. In this case I will modify my code in order to verify
if there is a dialog, creating one if it doesn't exist. Relative to the
nist-sip version I am using, it is at most one month old..

Thanks.

Luis

-----Original Message-----
From: M. Rangnathan [mailto:[email protected]] 
Sent: quarta-feira, 19 de Abril de 2006 19:49
To: Luis Alberto Teixeira
Cc: [email protected]
Subject: Re: [nist-sip] Can dialogs be used safely?

Luis,

I do hope you are using the current version from the cvs repository. 
What are these errors? Dialogs are certainly not deprecated.  You can do

without dialogs in Jain-sip-1.2 but before you give using the dialog 
implementation I'd like to work with you on getting things done right. 
If you are having an issue at load, perhaps there are synchronization 
problems with dialogs. Have you experienced problems with a thread pool 
of size of 1

Ranga

Luis Alberto Teixeira wrote:

> Hi all,
>
>  
>
> I have been working on a B2BUA service that in many aspects relies on 
> the Dialog implementation offered by the nist-sip stack. During 
> development the service have been softly tested through the different
>
> use cases and the results were successfull. But after a series of 
> tests under moderate load conditions, errors and unexpected behavior 
> became visible. Without being able to point out a concrete failure in
the
>
> service, and given the exceptions coming from the nist-sip stack and 
> the SIP RA (the service is executed on top of Mobicents application 
> server), we start questioning how much is it a good idea to keep
relying
>
> on the dialog objects provided by nist-sip instead of using other 
> solutions (whenever adequate for a BUBUA kind of service). Are the 
> dialogs safe to use or is it a deprecated choice for a reliable User 
> Agent.
>
>  
>
> Thanks.
>
>  
>
>  
>
> Luis Teixeira
>
>  
>
>  
>
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-- 
M. Ranganathan 

Advanced Networking Technologies Division,
National Institute of Standards and Technology (NIST),
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tel:301 975 3664 , fax:301 590 0932 http://w3.antd.nist.gov/
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