Yes, I'm polling every 10 seconds. When the backend is down, the hosts are marked as unhealthy in varnishlog.
-----Original Message----- From: Wido den Hollander [mailto:[email protected]] Sent: Dienstag, 30. November 2010 08:44 To: Klapproth, Martin Cc: [email protected] Subject: RE: Send old content if backend is down Hi, Just to be sure, are you doing health checks on your backend? Wido On Tue, 2010-11-30 at 08:16 +0100, Klapproth, Martin wrote: > Thank you. This option helped a lot. But varnish delivers still 503 > errors when the backend is completely down (no route to host, > connection refused). Is there a way to handle such situations too? > > > > > ______________________________________________________________________ > From:Per Buer [mailto:[email protected]] > Sent: Montag, 29. November 2010 15:10 > To: Klapproth, Martin > Cc: [email protected] > Subject: Re: Send old content if backend is down > > > > > On Mon, Nov 29, 2010 at 3:01 PM, Klapproth, Martin > <[email protected]> wrote: > > Hello, > > > > I have a general question relating to varnish's vcl > configuration. I want the varnish server to send old cached > objects if the backend is down (marked unhealthy). I have > tested various grace configurations but nothing worked, > because grace takes only effect if the backend is slow, but > not if it's down. So is there a way (maybe in vcl_error)? > > > > > > Yes. There is a way. > > > > > > http://www.varnish-cache.org/docs/trunk/tutorial/handling_misbehaving_se rvers.html#saint-mode > > > > -- > Per Buer, Varnish Software > Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / skype: per.buer > > > _______________________________________________ > varnish-misc mailing list > [email protected] > http://lists.varnish-cache.org/mailman/listinfo/varnish-misc _______________________________________________ varnish-misc mailing list [email protected] http://lists.varnish-cache.org/mailman/listinfo/varnish-misc
