Date: Wed, 5 Oct 2011 15:49:05 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Steven Hartland <killing@multiplay.co.uk> Cc: liv3d@multiplay.co.uk, freebsd-stable@freebsd.org Subject: Re: serious packet routing issue causing ntpd high load? Message-ID: <20111005224905.GA49954@icarus.home.lan> In-Reply-To: <19FA908AC3DD4788A4F8E50E45F06636@multiplay.co.uk> References: <2740DA0E7C0F495BA00E6D4BC0FE8F37@multiplay.co.uk> <41092663DF7A417D8A934A2840033412@multiplay.co.uk> <20111005004722.GA27935@icarus.home.lan> <19FA908AC3DD4788A4F8E50E45F06636@multiplay.co.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Oct 05, 2011 at 11:45:52PM +0100, Steven Hartland wrote: > ----- Original Message ----- From: "Jeremy Chadwick" > <freebsd@jdc.parodius.com> > > >1428 root 1 44 0 11900K 2860K select 0 0:17 0.00% /usr/sbin/ntpd -c /conf/ME/ntp.conf -p /var/run/ntpd.pid -f > > > >And "route -n monitor" shows no anomalies here. > > > >Maybe you should tcpdump to find out if there is a client or peer which > >is constantly pounding ntpd for some reason, or if ntpd is constantly > >nagging some peer? Not sure. > > Yep already checked this it seems we're seeing a MISS per packet sent > to mysql clients :( Can you explain what "MISS per packet" means, and what MySQL has to do with ntpd? Two confusing statements in one! :-) -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20111005224905.GA49954>