[sr-dev] kamailio gets frozen when rsyslog-mysql cannot send the SQL query

[Henning Westerholt]

On Thursday 29 July 2010, Iñaki Baz Castillo wrote:
> > in fact kamailio have already such a solution since 1.5.0:
> >
> > - non-blocking logging
> >  * support for non-blocking log writes to prevent blocking of the server
> > in certain error situations
> >  * can be enabled by setting the SYSLOG_ASYNC define in the
> > Makefile.defs, the default is the old implementation
> >
> > We implemented it sometimes in the past because of a somewhat similar
> > issue. There is maybe still one bug left (need to dig for the report..),
> > but in general it should work fine. I'm not sure if we ported this to sr,
> > but should be not that hard.
> 
> Ops, I didn't know it!
> Do you use it in production?

Hi Iñaki,

we planned to use it during some time were we needed some extensive logging on 
balancer class systems. But in the end we don't needed it, and don't use it so 
far. But the implementation should be straightforward, its a bit easier than 
you suggested - it just throw away log lines if some internal buffer is 
filled.

Cheers,

Henning