[Pdns-users] Possible tcp listener issue

[bert hubert]

Simon, Josh,

We're running out of things we can do without seeing packets. 

Could you try http://wiki.powerdns.com/trac/changeset/1652 ? 

This is the last thing we can come up with that might explain the issue you
are seeing. This fix is necessary, but unlikely to be the cause of the
problems you are seeing.


	Bert

On Wed, Jun 23, 2010 at 01:21:03PM +0100, Josh Berry wrote:
> Simon is away this afternoon, but to keep things moving...
> 
> On the server that he is monitoring on there is only one thing in the logs for those, and its when pDNS is starting up (this is the only restart in the logs):
> 
> /var/log/syslog.1.gz:Jun 21 11:22:18 pcl-cachedns01 pdns_recursor[31939]: Enabled 'epoll' multiplexer
> 
> Ta,
> Josh
> ________________________________________
> From: pdns-users-bounces at mailman.powerdns.com [pdns-users-bounces at mailman.powerdns.com] On Behalf Of bert hubert [bert.hubert at netherlabs.nl]
> Sent: 23 June 2010 12:47
> To: Simon Bedford
> Cc: pdns-users at mailman.powerdns.com
> Subject: Re: [Pdns-users] Possible tcp listener issue
> 
> Simon,
> 
> Can you grep your logfiles for 'epoll' or 'unlisted' or 'exception'?
> 
>         Bert
> 
> On Wed, Jun 23, 2010 at 11:00:12AM +0100, Simon Bedford wrote:
> > Thanks Bert,
> >
> > Appreciate you looking into this, would be nice to nail it once and for all.
> >
> > Simon
> >
> > ________________________________
> > From: bert.hubert at netherlabs.nl [bert.hubert at netherlabs.nl]
> > Sent: 22 June 2010 15:50
> > To: Simon Bedford
> > Cc: pdns-users at mailman.powerdns.com
> > Subject: Re: [Pdns-users] Possible tcp listener issue
> >
> > So much for my beliefs then :) Will take another good look at how else this could happen. The patch we made at least solves A bug just not your bug.
> >
> > Sent from my phone.
> >
> > ----- Reply message -----
> > From: "Simon Bedford" <sbedford at plus.net>
> > Date: Tue, Jun 22, 2010 09:44
> > Subject: [Pdns-users] Possible tcp listener issue
> > To: "bert hubert" <bert.hubert at netherlabs.nl>
> > Cc: "pdns-users at mailman.powerdns.com" <pdns-users at mailman.powerdns.com>
> >
> >
> > bert hubert wrote:
> > > Simon,
> > >
> > > the solution to your issue is almost certainly in
> > > http://wiki.powerdns.com/trac/changeset/1640
> > >
> > > Even though you do not see the log messages, I'm pretty sure this is it.
> > >
> > > Bert
> >
> > Morning,
> >
> > I created and installed the package yesterday (with the following option
> > STATIC=full) and the tcp clients still appears to be growing, less than
> > 24 hours later and the count is at 54 already although if I monitor it
> > more frequently I do see the number fluctuate a little put the pattern
> > is still growth as though not cleaning up all client connections....
> >
> > The following stats are entered in every 5 mins :-
> >
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 51
> > 52
> > 52
> > 52
> > 52
> > 52
> > 52
> > 53
> > 53
> > 53
> > 53
> > 53
> > 53
> > 54
> > 54
> > 54
> > 54
> > 54
> >
> > Simon
> >
> >
> >
> _______________________________________________
> Pdns-users mailing list
> Pdns-users at mailman.powerdns.com
> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>