To everybody seeing this issue (all two of you :)), can you grep the logfile on:
"startDoResolve problem: " "DNS parser error: " "STL error: " "Any other exception in a resolver context" Without the quotes. If you see any of these lines, it might explain the problem. Thanks! On Thu, Jun 17, 2010 at 04:16:50PM +0200, bert hubert wrote: > On Thu, Jun 17, 2010 at 03:14:39PM +0100, Simon Bedford wrote: > > Bert, its now climbing and not seeming to close any clients on both > > servers now, although one is much worse than the other, one is at 11 > > and the other is at 108 tcp-clients at the moment. > > Could you run: > > # tcpdump -s 0 -w tcpdns port 53 and tcp > > For a while (few hours) > > And then send me the output of: > > # tcpdump -n -r tcpdns > > You can obfuscate IP addresses, as long as I can see patterns that would be > great. > > Thanks! > > > > > Simon > > > > Simon Bedford wrote: > > >Please see answers below :- > > > > > >bert hubert wrote: > > >>On Wed, Jun 16, 2010 at 11:10:29AM +0100, Simon Bedford wrote: > > >>>I have been running the 'get tcp-clients' every 5 mins in cron on > > >>>both servers, one is very low <10 and fluctuates, the other is just > > >>>growing and growing and is currently at 55, hope this info is of > > >>>value for debug. > > >>Is there any difference between these two servers in terms of: > > >>* Operating system > > >No, both Debian Etch > > > > > >>* Number of processors > > >No, slightly faster processors in the one with the most clients > > > > > >>* Network configuration (load balancer?) > > >Different data centre but same network architecture, both loadbalanced. > > > > > >>* Use (mail servers versus residential internet connections?) > > >No, config is identical and use is only as a cachingDNS and NTP server > > > > > >>* Anything else that comes to mind > > >Nothing appears to be different, they are from a build that should > > >be identical across the platform, although we will be looking to > > >upgrade to Lenny in the near future. > > > > > >>Thanks! > > > > > >Thanks > > > > > >Simon > > > > > > > > >_______________________________________________ > > >Pdns-users mailing list > > >Pdns-users@mailman.powerdns.com > > >http://mailman.powerdns.com/mailman/listinfo/pdns-users > > > > > > > _______________________________________________ > Pdns-users mailing list > Pdns-users@mailman.powerdns.com > http://mailman.powerdns.com/mailman/listinfo/pdns-users > _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users