varnishd runtime parameters
Hi guys, So, Im reading over an archive email thread about twitters configuration. http://projects.linpro.no/pipermail/varnish-dev/2009-February/000968.html It looks like they had to adjust a lot of parameters... and Im not finding all the parameters definitions in the varnishd man pages. Im wondering if for most cases running varnish with the defaults is fine? Any caveats here which run time parameters should I focus on. Like with the vcl, the main two hooks to pay attention to are vcl_recv and vcl_fetch Any advice is appreciated, Thanks, Tung ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Purge and cache content mist.
> on my setup i only have one host. i'm sure you can restrict that to one single > host, but i don't know by heart. I don't think you can. At least I couldn't find any method to do host based purging without using the PURGE HTTP Method. > if url.purge can't do that you can setup url purging > see the link below the faq question > http://varnish.projects.linpro.no/wiki/FAQ#HowcanIforcearefreshonaobjectcached > byvarnish > http://varnish.projects.linpro.no/wiki/VCLExamplePurging True, but if he's doing this he can't do Wildcard purging! If there's any way to do wildcard purging on a specific hostname I'd be interested in that too. Something like for instance PURGE /foo/bar/.* HTTP/1.1 Host: some.host.tld But afaik this is not possible yet. Thanks, -- Lukas ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Purge and cache content mist.
hi Am Montag, 23. März 2009 15:10:01 schrieb Sébastien FOUTREL: > Thank you. > > About the url.purge, should I understand that url.purge doesn't manage > hosts so url.purge /that-part/.* will purge > http://onedomain.com/that-part/* and http://otherdomain.com/that-part/* ? > Can I use onedomaine\.com/that-part/.* to purge only '/that-part/' in that > host :) ? on my setup i only have one host. i'm sure you can restrict that to one single host, but i don't know by heart. if url.purge can't do that you can setup url purging see the link below the faq question http://varnish.projects.linpro.no/wiki/FAQ#HowcanIforcearefreshonaobjectcachedbyvarnish http://varnish.projects.linpro.no/wiki/VCLExamplePurging regards, harald > > > -Message d'origine- > De : Harald Friessnegger [mailto:har...@webmeisterei.com] > Envoyé : lundi 23 mars 2009 14:14 > À : varnish-misc@projects.linpro.no > Cc : Sébastien FOUTREL > Objet : Re: Purge and cache content mist. > > hi sebastien > > Am Montag, 23. März 2009 12:32:22 schrieb Sébastien FOUTREL: > > Hello, > > > > I read a lot of things in the list and varnish sites but some things stay > > fuzzy to me. > > > > Is there a way to find if something is in the cache, have a map of cached > > content or some script that give one ? > > i don't know of a list output. what i do is to use varnishlog or turn on > debug headers: > > > open varnishlog, request a resource and see at the X-Varnish-Action Header > > > requesting a resource the first time that gets cached will give you > > TxHeader c X-Varnish-Action: FETCH (insert) > > requesting it again will log > > TxHeader c X-Varnish-Action: HIT (deliver - from cache) > > > > personally i'm using some combination with grep that gives me the headers > i'm interested in: > > > For debugging all requests to a certain url (eg /test/test/image_mini) and > see important headers:: > > varnishlog -c -o RxURL '^/test/test/image_mini$' | grep -E > "RxRequest|RxURL| Host:|TxStatus|TxResponse|X-Varnish-Action" > > > Is it possible to do recursive purge in a way or another ? > > > > I'd like to purge "www.example.org/that-part/" is to possible to simply > > purge all objects under that url ? > > run varnish with the -T option (eg "-T localhost:6182") > > connet via telnet: > > telnet localhost 6182 > > and call something like > > url.purge /that-part/.* > > > to see whether to use www.example.org/that-part or just /that-part or any > other fancy url (you might have a webserver rewrite urls for doing > virtualhosting) you can use varnishlog again: > > varnishlog -c -i RxURL > > > > hope that helps > fRiSi > > > Thank you. > > > > -- > > Sébastien FOUTREL > > > > > > > > ___ > > varnish-misc mailing list > > varnish-misc@projects.linpro.no > > http://projects.linpro.no/mailman/listinfo/varnish-misc -- Webmeisterei GmbH - Büro für Netzfragen Tel: +43 5572 908877, Fax: +43 5572 908877-66 Steinebach 18, A-6850 Dornbirn http://www.webmeisterei.com ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
RE: Purge and cache content mist.
Thank you. About the url.purge, should I understand that url.purge doesn't manage hosts so url.purge /that-part/.* will purge http://onedomain.com/that-part/* and http://otherdomain.com/that-part/* ? Can I use onedomaine\.com/that-part/.* to purge only '/that-part/' in that host :) ? -Message d'origine- De : Harald Friessnegger [mailto:har...@webmeisterei.com] Envoyé : lundi 23 mars 2009 14:14 À : varnish-misc@projects.linpro.no Cc : Sébastien FOUTREL Objet : Re: Purge and cache content mist. hi sebastien Am Montag, 23. März 2009 12:32:22 schrieb Sébastien FOUTREL: > Hello, > > I read a lot of things in the list and varnish sites but some things stay > fuzzy to me. > > Is there a way to find if something is in the cache, have a map of cached > content or some script that give one ? i don't know of a list output. what i do is to use varnishlog or turn on debug headers: open varnishlog, request a resource and see at the X-Varnish-Action Header requesting a resource the first time that gets cached will give you TxHeader c X-Varnish-Action: FETCH (insert) requesting it again will log TxHeader c X-Varnish-Action: HIT (deliver - from cache) personally i'm using some combination with grep that gives me the headers i'm interested in: For debugging all requests to a certain url (eg /test/test/image_mini) and see important headers:: varnishlog -c -o RxURL '^/test/test/image_mini$' | grep -E "RxRequest|RxURL| Host:|TxStatus|TxResponse|X-Varnish-Action" > > Is it possible to do recursive purge in a way or another ? > > I'd like to purge "www.example.org/that-part/" is to possible to simply > purge all objects under that url ? run varnish with the -T option (eg "-T localhost:6182") connet via telnet: telnet localhost 6182 and call something like url.purge /that-part/.* to see whether to use www.example.org/that-part or just /that-part or any other fancy url (you might have a webserver rewrite urls for doing virtualhosting) you can use varnishlog again: varnishlog -c -i RxURL hope that helps fRiSi > > Thank you. > > -- > Sébastien FOUTREL > > > > ___ > varnish-misc mailing list > varnish-misc@projects.linpro.no > http://projects.linpro.no/mailman/listinfo/varnish-misc -- Webmeisterei GmbH - Büro für Netzfragen Tel: +43 5572 908877, Fax: +43 5572 908877-66 Steinebach 18, A-6850 Dornbirn http://www.webmeisterei.com ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
RE: Purge and cache content mist.
> From: Sébastien FOUTREL ... > Is there a way to find if something is in the cache, have a map of cached > content or some script that give one ? http://varnish.projects.linpro.no/wiki/FAQ#CanIseewhatVarnishholdsinthecache > Is it possible to do recursive purge in a way or another ? http://varnish.projects.linpro.no/wiki/FAQ#HowcanIforcearefreshonaobjectcach edbyvarnish Cheers, -- Lukas ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Purge and cache content mist.
hi sebastien Am Montag, 23. März 2009 12:32:22 schrieb Sébastien FOUTREL: > Hello, > > I read a lot of things in the list and varnish sites but some things stay > fuzzy to me. > > Is there a way to find if something is in the cache, have a map of cached > content or some script that give one ? i don't know of a list output. what i do is to use varnishlog or turn on debug headers: open varnishlog, request a resource and see at the X-Varnish-Action Header requesting a resource the first time that gets cached will give you TxHeader c X-Varnish-Action: FETCH (insert) requesting it again will log TxHeader c X-Varnish-Action: HIT (deliver - from cache) personally i'm using some combination with grep that gives me the headers i'm interested in: For debugging all requests to a certain url (eg /test/test/image_mini) and see important headers:: varnishlog -c -o RxURL '^/test/test/image_mini$' | grep -E "RxRequest|RxURL| Host:|TxStatus|TxResponse|X-Varnish-Action" > > Is it possible to do recursive purge in a way or another ? > > I'd like to purge "www.example.org/that-part/" is to possible to simply > purge all objects under that url ? run varnish with the -T option (eg "-T localhost:6182") connet via telnet: telnet localhost 6182 and call something like url.purge /that-part/.* to see whether to use www.example.org/that-part or just /that-part or any other fancy url (you might have a webserver rewrite urls for doing virtualhosting) you can use varnishlog again: varnishlog -c -i RxURL hope that helps fRiSi > > Thank you. > > -- > Sébastien FOUTREL > > > > ___ > varnish-misc mailing list > varnish-misc@projects.linpro.no > http://projects.linpro.no/mailman/listinfo/varnish-misc -- Webmeisterei GmbH - Büro für Netzfragen Tel: +43 5572 908877, Fax: +43 5572 908877-66 Steinebach 18, A-6850 Dornbirn http://www.webmeisterei.com ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Purge and cache content mist.
Hello, I read a lot of things in the list and varnish sites but some things stay fuzzy to me. Is there a way to find if something is in the cache, have a map of cached content or some script that give one ? Is it possible to do recursive purge in a way or another ? I'd like to purge "www.example.org/that-part/" is to possible to simply purge all objects under that url ? Thank you. -- Sébastien FOUTREL ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Default behaviour with regards to Cache-Control
Ole Laursen writes: > > Well, if people in general think our defaults should be that way, we > > can change them, our defaults are whatever the consensus can agree on. > > Cool! That'd make one particular webserver owner's job a bit easier, and I > suspect many others too. :) I've opened an issue now: http://varnish.projects.linpro.no/ticket/477 It probably sounds obvious now, but it was really difficult to track down why my web app didn't work as expected since the problem only manifested itself occasionally (took more than 6 months before I finally figured it out). I really didn't expect it. Ole ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
