[syslog-ng]syslog-ng stopped working yesterday

[Balazs Scheidler]

On Wed, 2004-12-29 at 09:30 +0100, Gorm J. Siiger wrote:
> > 
> > syslog-ng probably blocks on something, maybe on a DNS query. can you
> > strace syslog-ng while it is blocked like this?
> > 
> 
> I found the problem, the reverse dns zone for one particular host was
> classless delegated, and that name-server was configured wrong.
> 
> Pretty interesting that syslog-ng fails that bad when dns doesn't work.
> 
> Once the problem was fixed everything went back to normal.
> 
> 

you can always disable resolving names from DNS, but what else could you
do? if I'd do non-blocking DNS queries and would continue processing on
other messages while waiting for a given message to resolve, then
message ordering will be bad.

An other solution might be to add non-DNS name lookups, e.g. resolve
names from a private mechanism to make it possible to use names in
messages and use IP addresses if it fails, but never block.

What do you think about this solution?

-- 
Bazsi