True and false.
When you dont define to close the connection it will do keep-alives. The problem with this is that only the first header of the stream will be checked against the acl's. If you use haproxy only to load balance between http servers and not doing routing based on url's (e.g. send \.(gif|jpg|png|jpeg) to static server and all else to processing cluster), you may use keep-alives. Henry Van: Michael Fischer [mailto:[email protected]] Verzonden: woensdag 23 december 2009 1:12 Aan: Henry Paulissen CC: Joe Williams; [email protected] Onderwerp: Re: Slow connections haproxy has never supported keep-alive HTTP connections, to my knowledge. --Michael On Tue, Dec 22, 2009 at 3:41 PM, Henry Paulissen <[email protected]> wrote: Next one. Did you tune the tcp fin timeout? (on both servers) Linux will standard holds all connection open till it hits the fin timeout length (tcp_fin and tcp_fin2). We decreased it to 3. HAProxy support: Do you forced a http connection close in haproxy? If all connections are in keep-alive your queue will fill up real quick. Henry -----Oorspronkelijk bericht----- Van: Joe Williams [mailto:[email protected]] Verzonden: woensdag 23 december 2009 0:23 Aan: Henry Paulissen CC: [email protected] Onderwerp: Re: Slow connections Thanks Henry, nf_conntrack_max is set high on both machines. I've had the full table issue before :P On 12/22/09 2:58 PM, Henry Paulissen wrote: > Have a look to the conntrack setting in the kernel (sysctl) on both sides. > It could be that your conntrack is full (connectrack only exists if you use > iptables with netfilter_conntrack). > > Regards, > Henry > > -----Oorspronkelijk bericht----- > Van: [email protected] > [mailto:[email protected]] Namens Joe Williams > Verzonden: dinsdag 22 december 2009 18:12 > Aan: [email protected] > Onderwerp: Slow connections > > > I am seeing a good amount (1/100) of connections to varnish (from > haproxy) taking 3 seconds. My first thought was the connection backlog > but somaxconn and listen_depth are both set higher than the number of > connections. Anyone have any suggestions on how to track down what is > causing this or settings I can use to try to aleviate it? > > Thanks. > > -Joe > > -- Name: Joseph A. Williams Email: [email protected] Blog: http://www.joeandmotorboat.com/ _______________________________________________ varnish-misc mailing list [email protected] http://projects.linpro.no/mailman/listinfo/varnish-misc
_______________________________________________ varnish-misc mailing list [email protected] http://projects.linpro.no/mailman/listinfo/varnish-misc
