[Users] Malformed CANCEL request from Asterisk possibly impacting OpenSER?

[David Coulthart]

On Wed, 2007-05-30 at 18:12 +0300, Daniel-Constantin Mierla wrote:
> Hello,
> 
> On 05/30/07 17:49, David Coulthart wrote:
> > We are currently experiencing problems with our production OpenSER
> > (1.1.0) environment where the load on the server is steadily increasing
> > and the OpenSER response time increases drastically (e.g., 30+ seconds
> > for an internal call to ring).
> >   
> this might be because of some slow DNS or database response. The best is 
> to run in higher debug mode to see where it gets stuck. Another 
> possiblity is the syslog, make sure it is configured to be asynchronous. 
> If you have lot of messages written to syslog synchronous, then you will 
> get lot of delays.

Daniel,

Thank you for this info.  It appears switching to asynchronous
syslog'ing was a huge win for us.

> To troubleshoot, see which application eats most of the CPU, if that 
> happens.
> 
> On the other hand, with 1.2.x you get better performances and parsing 
> error handling via error_route. You should consider upgrading.

We are investigating 1.2.1.  Better performance always sounds good.

Thx,
David Coulthart