Okay, I'm lost here … what sort of site is Varnish good for … ? A news web site where nobody every logs into the site … ?
For instance, the impression I'm getting is that you couldn't use Varnish in front of a Facebook like site, since none of the hits would be anonymous? But would be potentially useful in front of a Slashdot like site, where alot of the hits *are* anonymous? The reason I started to look at Varnish was a client asked about it in terms of the W3T Cache that is available for Wordpress … it apparently has the ability to 'invalidate cache' in a varnish server, so as to force it to reload from apache … but I don't know enough about Wordpress to know if I can even safely disable cookies, but without disabling cookies, nothing will get cached, making Varnish good as a load balancer, but losing the major benefit … … no? On 2012-07-13, at 11:53 PM, Nick Tailor wrote: > Also you only want anonymous visits cached. All cookies with session Id > should be passed to apache and then you want look trying to setup should ur > backend fail run off the cache only > > Sent from my iPhone > > On Jul 13, 2012, at 10:51 AM, Marc Fournier <[email protected]> wrote: > >> >> Morning … >> >> OS: FreeBSD 8.3-STABLE #2: Mon Jul 2 21:20:02 UTC 2012 >> >> I am trying to use varnish as a caching front end to a wordpress site … >> found some wordpress specific templetes for vcl_recv / vcl_fetch, to provide >> me with a base, and everything starts up, and stays running fine, *until* I >> change my DNS to have the domain go through Varnish … and then it starts >> rebooting … >> >> This test through, before I switched DNS, I had an uptime (according to >> varnish stat) of just over 1 hr … as soon as I switched DNS over, uptime >> kept resetting to 0, with (after switching DNS back again), I'm currently >> seeing: >> >> 0+00:07:44 >> Hitrate ratio: 0 0 0 >> Hitrate avg: 0.0000 0.0000 0.0000 >> >> And, according to ps, you can see the Child much younger then the Mgr: >> >> root@lb1:/var/log # ps aux | grep varnish >> www 52281 0.0 0.0 355674084 6432 ?? IJ 5:34PM 0:00.16 >> varnishd: Varnish-Chld lb1.hospitalityleaders.com (varnishd) >> root 74714 0.0 0.0 98032 2636 ?? SsJ 4:21PM 0:00.13 varnishd: >> Varnish-Mgr lb1.hospitalityleaders.com (varnishd) >> root 71856 0.0 0.0 540 328 2 S+J 5:44PM 0:00.00 grep varnish >> >> I'm new with this, so not really sure how best to debug … I did see >> something from PHK in one of my searches talking about an issue with cookies >> … ? But I haven't been able to re-find that posting … >> >> I've also, so far, been unable to find a core file, although I'm currently >> running a find across the whole file system to see if there isn't one … >> >> Any suggestions on where to start debugging this, or more information I >> can provide, would be appreciated … >> >> Thank you ... >> _______________________________________________ >> varnish-misc mailing list >> [email protected] >> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
