[Wordpress]homepage not purging (Everton Blair)
Everton Blair
everton at connectedinternet.co.uk
Fri Jul 8 21:14:46 CEST 2011
sorry, I meant to say new posts ARE NOT forcing the homepage to
purge/update, so I need a way to get the homepage to update whenever any
purge request comes in.
On Fri, Jul 8, 2011 at 8:05 PM, <varnish-misc-request at varnish-cache.org>wrote:
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> Today's Topics:
>
> 1. Re: Drupal 7.x & Varnish 3.x (Flatcircle)
> 2. Varnish + Apache + SSL + Pound? (Scott Wilcox)
> 3. Re:[Wordpress]homepage not purging (Everton Blair) (Everton Blair)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 8 Jul 2011 20:26:18 +0200
> From: Flatcircle <flatcircle at hotmail.com>
> To: Mattias Geniar <mattias at nucleus.be>
> Cc: varnish-misc at varnish-cache.org
> Subject: Re: Drupal 7.x & Varnish 3.x
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> ------------------------------
>
> Message: 2
> Date: Fri, 8 Jul 2011 19:37:38 +0100
> From: Scott Wilcox <scott at dor.ky>
> To: <varnish-misc at varnish-cache.org>
> Subject: Varnish + Apache + SSL + Pound?
> Message-ID: <2F426C39-48D0-4D7A-A14C-4BBCA9391837 at dor.ky>
> Content-Type: text/plain; charset="us-ascii"
>
> Hello folks,
>
> I've seen this and similar questions asked often and with varying replies.
> I'd like to have my own scenario looked at. I'm currently in the process of
> redesigning my work flow for one of my projects. The main web server that
> serves content is Apache. I plan to have Varnish caching this traffic where
> applicable. I would like to add a layer of redundancy in regards to alerting
> users of problems too. I also need to support SSL too.
>
> I'm looking at having pound accept connections which is then passed to
> varnish. Varnish then handles the traffic as normal.
>
> I've seen in v3 that basic HTML can be output for errors, but I'd like to
> include a stylesheet and logo too. I can host these off the site if needed,
> but I've considered having 'pretty' error messages which include stylesheets
> and images. I'd obviously have to host these off site which isn't a problem.
>
> Is it better to use nginx to accept both HTTP and HTTPS connections and
> serve the errors/content or does my original plan sound better?
>
> What do you use in production and why?
>
> Do you recommend pound or nginx?
>
> Many thanks for replies in advance.
>
> --
> Scott Wilcox
>
> @dordotky | scott at dor.ky | http://dor.ky
> +44 (0) 7538 842418 | +1 (646) 827-0580
>
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> ------------------------------
>
> Message: 3
> Date: Fri, 8 Jul 2011 20:04:40 +0100
> From: Everton Blair <everton at connectedinternet.co.uk>
> To: varnish-misc at varnish-cache.org
> Subject: Re:[Wordpress]homepage not purging (Everton Blair)
> Message-ID:
> <CAOAN0RQEraiGv9e8K3jTsAuM3YOdgAyBK8iahHZBcZY1sfFTdw at mail.gmail.com
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Can anyone help me with my problem please? It's been causing me major
> problems. Basically I'm using Wordpress and new posts have been forcing
> the
> homepage to purge, I think because I'm using a special template within
> wordpress to create the homepage and I think Varnish doesn't realise it
> needs to purge that page
>
> What I want to do is force varnish to purge my homepage when any purge
> requests come in to make sure it stays fresh and to be safe, but I can't
> get
> this to work:
>
> sub vcl_recv {
> if (req.request == "PURGE") {
> if (!client.ip ~ purge) {
> error 405 "Not allowed.";
> }
> if (req.url == "^windows7news.com/$") {
> purge(HOW DO I TELL VARNISH TO PURGE
> http://www.windows7news.com/magazine-homepage/ ????);
> }
> if (req.url == "^windows8news.com/$") {
> purge(HOW DO I TELL VARNISH TO PURGE
> http://www.windows8news.com/magazine-homepage/ ???);
> }
> return(lookup);
> }
> }
>
> Thanks for any help.
>
>
> On Fri, Jul 8, 2011 at 11:46 AM, <varnish-misc-request at varnish-cache.org
> >wrote:
>
> > Send varnish-misc mailing list submissions to
> > varnish-misc at varnish-cache.org
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
> > or, via email, send a message with subject or body 'help' to
> > varnish-misc-request at varnish-cache.org
> >
> > You can reach the person managing the list at
> > varnish-misc-owner at varnish-cache.org
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of varnish-misc digest..."
> >
> >
> > Today's Topics:
> >
> > 1. Re: Does Varnish uses ETag? (Geoff Simmons)
> > 2. Fwd: [Wordpress]homepage not purging (Everton Blair)
> > 3. Re: errno = Connection reset by peer (Tollef Fog Heen)
> > 4. Re: Varnishstat question (Tollef Fog Heen)
> > 5. Possible bug with very large headers in varnish-3.0.0
> > revision 3bd5997 (Lee Trout)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Fri, 08 Jul 2011 12:23:54 +0200
> > From: Geoff Simmons <geoff at uplex.de>
> > To: Kurt Kraut <listas at kurtkraut.net>
> > Cc: varnish-misc at varnish-cache.org
> > Subject: Re: Does Varnish uses ETag?
> > Message-ID: <4E16DABA.2050606 at uplex.de>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA256
> >
> > On 7/7/11 11:14 PM, Kurt Kraut wrote:
> > >
> > > Does Varnish used ETag to check cache freshness?
> >
> > Mainline Varnish doesn't, but there's an experimental branch
> > 'experimental-ims' on the source repository in which it's implemented.
> >
> > > - If yes, how does it behave?
> >
> > http://www.varnish-cache.org/trac/wiki/BackendConditionalRequests
> >
> > As per the RFC, freshness checks against ETags are done with conditional
> > requests to the backend using If-None-Match.
> >
> > > - If not, is it possible to achive through VCL?
> >
> > I don't think so, because standard VCL doesn't have a way to access an
> > object in the cache that has an expired TTL, but otherwise matches the
> > request, and hence could be refreshed.
> >
> > So you don't ordinarily know an ETag in VCL that could be used for the
> > refresh, and even if you did, and got a 304 response from the backend,
> > there's no way to tell Varnish to deliver the stale object after all.
> >
> > If you get a chance to try the IMS branch, please let us know how it
> goes.
> >
> >
> > Best,
> > Geoff
> > - --
> > UPLEX Systemoptimierung
> > Schwanenwik 24
> > 22087 Hamburg
> > http://uplex.de/
> > Mob: +49-176-63690917
> > -----BEGIN PGP SIGNATURE-----
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> > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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> > 24e8axxNjKucDr5uFx1L
> > =PW5G
> > -----END PGP SIGNATURE-----
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Fri, 8 Jul 2011 11:38:57 +0100
> > From: Everton Blair <everton at connectedinternet.co.uk>
> > To: varnish-misc at varnish-cache.org
> > Subject: Fwd: [Wordpress]homepage not purging
> > Message-ID:
> > <CAOAN0RTbMwwiYOTiZZcHA+h7HXYkDut7NLE_+c_ef=
> CCDxm4Xw at mail.gmail.com
> > >
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Hi
> >
> > I've just started using Varnish with Wordpress/W3TC, and all is ok, apart
> > from my homepage not purging when an update is made e.g. a new post. I
> > think this might be because my homepage is using a static page
> > www.windows7news.com/magazine-homepage/ as it's homepage and is doing
> some
> > magic within Wordpress to show this page when the page
> > www.windows7news.com/is requested i.e. the server doesn't know that
> > www.windows7news.com/magazine-homepage/ needs purging.
> >
> > I thought I'd temporariliy managed to fix this by adding:
> >
> > sub vcl_recv {
> > if (req.url ~ "^/") {
> > return(pass);
> > }
> > }
> >
> > But I only managed to turn the cache off completely. Is there anyway to
> > tell Varnish to always purge the homepage if there's a change?
> >
> > Thanks in advance for any help.
> >
> > My full VCL is below. If anyone has any Wordpress specific changes
> they'd
> > like to share then please send them my way!
> >
> > Regards
> >
> > EB
> >
> >
> >
> -----------------------------------------------------------------------------------------------------------------------------------
> >
> > backend b96_30_20_4 {
> > .host = "96.30.20.4";
> > .port = "8080";
> > .probe = {
> > .url = "/";
> > .interval = 5s;
> > .timeout = 1 s;
> > .window = 5;
> > .threshold = 3;
> > }
> > // we include time outs so uploads don't time out
> > .connect_timeout = 600s;
> > .first_byte_timeout = 600s;
> > .between_bytes_timeout = 600s;
> > }
> >
> > backend b96_30_20_5 {
> > .host = "96.30.20.5";
> > .port = "8080";
> > .probe = {
> > .url = "/";
> > .interval = 5s;
> > .timeout = 1 s;
> > .window = 5;
> > .threshold = 3;
> > }
> > // we include time outs so uploads don't time out
> > .connect_timeout = 600s;
> > .first_byte_timeout = 600s;
> > .between_bytes_timeout = 600s;
> > }
> >
> > backend b96_30_20_6 {
> > .host = "96.30.20.6";
> > .port = "8080";
> > .probe = {
> > .url = "/";
> > .interval = 5s;
> > .timeout = 1 s;
> > .window = 5;
> > .threshold = 3;
> > }
> > // we include time outs so uploads don't time out
> > .connect_timeout = 600s;
> > .first_byte_timeout = 600s;
> > .between_bytes_timeout = 600s;
> > }
> >
> > backend b96_30_20_7 {
> > .host = "96.30.20.7";
> > .port = "8080";
> > .probe = {
> > .url = "/";
> > .interval = 5s;
> > .timeout = 1 s;
> > .window = 5;
> > .threshold = 3;
> > }
> > // we include time outs so uploads don't time out
> > .connect_timeout = 600s;
> > .first_byte_timeout = 600s;
> > .between_bytes_timeout = 600s;
> > }
> >
> > backend b96_30_18_15 {
> > .host = "96.30.18.15";
> > .port = "8080";
> > .probe = {
> > .url = "/";
> > .interval = 5s;
> > .timeout = 1 s;
> > .window = 5;
> > .threshold = 3;
> > }
> > // we include time outs so uploads don't time out
> > .connect_timeout = 600s;
> > .first_byte_timeout = 600s;
> > .between_bytes_timeout = 600s;
> > }
> >
> > acl a96_30_20_4 {
> > "96.30.20.4";
> > }
> > acl a96_30_20_5 {
> > "96.30.20.5";
> > }
> > acl a96_30_20_6 {
> > "96.30.20.6";
> > }
> > acl a96_30_20_7 {
> > "96.30.20.7";
> > }
> > acl a96_30_18_15 {
> > "96.30.18.15";
> > }
> >
> > acl purge {
> > "96.30.20.4";
> > "96.30.20.5";
> > "96.30.20.6";
> > "96.30.20.7";
> > "96.30.18.15";
> > }
> >
> > sub vcl_recv {
> > if (server.ip ~ a96_30_20_4) {
> > set req.backend = b96_30_20_4;
> > }
> > if (server.ip ~ a96_30_20_5) {
> > set req.backend = b96_30_20_5;
> > }
> > if (server.ip ~ a96_30_20_6) {
> > set req.backend = b96_30_20_6;
> > }
> > if (server.ip ~ a96_30_20_7) {
> > set req.backend = b96_30_20_7;
> > }
> > if (server.ip ~ a96_30_18_15) {
> > set req.backend = b96_30_18_15;
> > }
> > }
> >
> > sub vcl_recv {
> > if (req.request == "PURGE") {
> > if (!client.ip ~ purge) {
> > error 405 "Not allowed.";
> > }
> > return(lookup);
> > }
> > if (req.url ~ "^/") {
> > return(pass);
> > }
> > if (req.url ~ "^/forum/$") {
> > return(pass);
> > }
> > if (req.url ~ "^/$") {
> > unset req.http.cookie;
> > }
> > }
> > sub vcl_hit {
> > if (req.request == "PURGE") {
> > set obj.ttl = 0s;
> > error 200 "Purged.";
> > }
> > }
> > sub vcl_miss {
> > if (req.request == "PURGE") {
> > error 404 "Not in cache.";
> > }
> > if (!(req.url ~ "wp-(login|admin)")) {
> > unset req.http.cookie;
> > }
> > if (req.url ~
> >
> >
> "^/[^?]+.(jpeg|jpg|png|gif|ico|js|css|txt|gz|zip|lzma|bz2|tgz|tbz|html|htm)(\?.|)$")
> > {
> > unset req.http.cookie;
> > set req.url = regsub(req.url, "\?.$", "");
> > }
> > if (req.url ~ "^/$") {
> > unset req.http.cookie;
> > }
> > }
> > sub vcl_fetch {
> > if (req.url ~ "^/$") {
> > unset beresp.http.set-cookie;
> > }
> > if (!(req.url ~ "wp-(login|admin)")) {
> > unset beresp.http.set-cookie;
> > }
> > }
> > -------------- next part --------------
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> > >
> >
> > ------------------------------
> >
> > Message: 3
> > Date: Fri, 08 Jul 2011 12:41:30 +0200
> > From: Tollef Fog Heen <tfheen at varnish-software.com>
> > To: google at alexus.org
> > Cc: varnish-misc at varnish-cache.org
> > Subject: Re: errno = Connection reset by peer
> > Message-ID: <8739iht5ph.fsf at qurzaw.varnish-software.com>
> > Content-Type: text/plain; charset=us-ascii
> >
> > ]] alexus
> >
> > | 70 Debug c "Write error, retval = -1, len = 10212, errno =
> > | Connection reset by peer"
> > |
> > | other then vcl_error(404, unknown virtual host) what that other message
> > | really mean?
> >
> > That the client disconnected before we were done sending the object.
> >
> > --
> > Tollef Fog Heen
> > Varnish Software
> > t: +47 21 98 92 64
> >
> >
> >
> > ------------------------------
> >
> > Message: 4
> > Date: Fri, 08 Jul 2011 12:44:45 +0200
> > From: Tollef Fog Heen <tfheen at varnish-software.com>
> > To: Jonathan Hursey <jonathan.hursey at adrevolution.com>
> > Cc: varnish-misc at varnish-cache.org
> > Subject: Re: Varnishstat question
> > Message-ID: <87y609rqzm.fsf at qurzaw.varnish-software.com>
> > Content-Type: text/plain; charset=us-ascii
> >
> > ]] Jonathan Hursey
> >
> > Hi,
> >
> > | Greetings fellow varnish enthusiasts. I was wondering if anyone could
> > help
> > | me determine what would be considered good values for the follow fields
> > in
> > | varnishstat output and what these fields indicate:
> > |
> > | 1 0.00 0.00 N vcl total
> > | 1 0.00 0.00 N vcl available
> >
> > This just tells you that you have one VCL loaded.
> >
> > | 7 . . N total active purges
> > | 7 0.00 0.00 N new purges added
> >
> > You have 7 bans added
> >
> > | 6112 0.00 0.02 N objects tested
> >
> > And 6112 objects tested against those bans in total.
> >
> > Regards,
> > --
> > Tollef Fog Heen
> > Varnish Software
> > t: +47 21 98 92 64
> >
> >
> >
> > ------------------------------
> >
> > Message: 5
> > Date: Thu, 30 Jun 2011 20:44:26 -0400
> > From: Lee Trout <lee at leetrout.com>
> > To: varnish-misc at varnish-cache.org
> > Subject: Possible bug with very large headers in varnish-3.0.0
> > revision 3bd5997
> > Message-ID: <BANLkTin7OC0zAFdedQQk3Mb42ozP=eVPwg at mail.gmail.com>
> > Content-Type: text/plain; charset=ISO-8859-1
> >
> > Hello!
> >
> > Please excuse the interruption, but I wanted to see if I may have
> > stumbled upon a bug or if there is a known issue or configuration
> > option for requests with very large header values.
> >
> > Using varnish-3.0.0 revision 3bd5997 when a large request comes in
> > (cookie header ~3k characters) the header is lost. I am seeing
> > "LostHeader c Cookie:" in the logs.
> >
> > This paste includes the request and results comparing varnish-3.0.0
> > revision 3bd5997 and varnish-2.1.4 SVN 5447M
> > http://pastebin.com/J2Qn0KGn
> >
> > Thank you in advance for your time and suggestions.
> >
> > Lee
> > --
> > Lee Trout
> > http://www.leetrout.com
> >
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > varnish-misc mailing list
> > varnish-misc at varnish-cache.org
> > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
> >
> > End of varnish-misc Digest, Vol 64, Issue 13
> > ********************************************
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