Re: Maintenance message
On Feb 10, 2010, at 3:04 AM, Reinis Rozitis wrote: >> I have a varnish server working well, but I'd like to have a standby server >> that does nothing but server up "Sorry we are >> preforming maintenance". My thought was to write VCL code to check the >> health of the director, and if that was bad use a different >> server (something like the example below). But that doesn't work. Any >> suggestions? > > Why not use the vcl_error ? > Just customize the default html which is included in the sample config and > you can have a nice error page without even the need of a > extra server. > Thanks for the suggestion, but our error page isn't trivial and I don't like the idea of maintaining the site within a varnish configuration file. It actually won't be an extra server, it will just be on a port on the same machine as varnish. But served by a proper http server. -Brad ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Maintenance message
Why not use the vcl_error ?
Just customize the default html which is included in the sample config and you
can have a nice error page without even the need of a
extra server.
Or you mean the whole director config doesnt work?
rr
- Original Message -
From: "Brad Schick"
To:
Sent: Wednesday, February 10, 2010 8:54 AM
Subject: Maintenance message
>I have a varnish server working well, but I'd like to have a standby server
>that does nothing but server up "Sorry we are
>preforming maintenance". My thought was to write VCL code to check the health
>of the director, and if that was bad use a different
>server (something like the example below). But that doesn't work. Any
>suggestions?
>
> backend web1 {
>.host = "10.0.0.1";
>.probe = {
>.url = "/";
>.window = 5;
>.threshold = 3;
>}
> }
>
> backend web2 {
>.host = "10.0.0.2";
>.probe = {
>.url = "/";
>.window = 5;
>.threshold = 3;
>}
> }
>
> backend maint {
>.host = "127.0.0.1";
> }
>
> director cluster round-robin {
>{ .backend = web1; }
>{ .backend = web2; }
> }
>
> sub vcl_recv {
>if(cluster.healthy){
>set req.backend = cluster;
>}
>else {
>set req.backend = maint;
>}
>...
> }
>
> sub vcl_fetch {
>if(req.backend == maint) {
>pass;
>}
> ...
> }
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> varnish-misc@projects.linpro.no
> http://projects.linpro.no/mailman/listinfo/varnish-misc
>
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Re: Maintenance message
In message <2caa2d26-7b56-4402-88e1-559361135...@gmail.com>, Brad Schick writes
:
>I have a varnish server working well, but I'd like to have a standby
>server that does nothing but server up "Sorry we are preforming
>maintenance". My thought was to write VCL code to check the health
>of the director, and if that was bad use a different server (something
>like the example below). But that doesn't work. Any suggestions?
Actually, it just takes a bit of a detour:
sub vcl_recv {
set req.backend = cluster;
if (!req.backend.healthy) {
set req.backend = maint;
}
}
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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