On Thu, Dec 30, 2021 at 8:17 AM Johan Hendriks <[email protected]> wrote: > > Hello all, first off all, thanks for a year full of varnish happiness > like the developers page and the parallel ESI for the varnish-cache edition. > > We use the following in the vcl for our varnish health check from our > haproxy loadbalancers > > if (req.url == "/varnish_status") { > if (!std.healthy(req.backend_hint)) { > return (synth(500, "Varnish: unhealthy backend.")); > } > else { > return (synth(200, "Varnish: All good!")); > } > } > > And this works fine if we run varnish on the webserver itself with only > one backend. > But if we use the director with multiple backends we get an 500 error if > one of the backend servers is offline even if the director itself has > enough servers left and still is marked ad healthy. > > Is there a way to check if the director itself is down? > > like > Backend name Admin Probe Health Last change > boot.web01 probe 5/5 healthy Mon, 27 Dec 2021 08:42:58 GMT > boot.web02 probe 5/5 healthy Mon, 27 Dec 2021 08:42:58 GMT > boot.web03 probe 5/5 healthy Mon, 27 Dec 2021 08:42:58 GMT > boot.webcluster probe 2/2 healthy Mon, 27 Dec 2021 08:42:58 GMT > > return a 200 as all is good > > boot.web01 probe 2/5 sick Wed, 29 Dec 2021 18:33:41 GMT > boot.web02 probe 4/5 healthy Wed, 29 Dec 2021 18:33:41 GMT > boot.web03 probe 4/5 healthy Wed, 29 Dec 2021 18:33:41 GMT > boot.webcluster probe 1/2 healthy Wed, 29 Dec 2021 18:33:41 GMT > > still return a 200 as we still have a healthy webcluster backend. > > Backend name Admin Probe Health Last change > boot.web01 probe 2/5 sick Wed, 29 Dec 2021 18:34:40 GMT > boot.web02 probe 2/5 sick Wed, 29 Dec 2021 18:34:40 GMT > boot.web02 probe 2/5 sick Wed, 29 Dec 2021 18:34:40 GMT > boot.webcluster probe 0/2 sick Wed, 29 Dec 2021 18:34:40 GMT > > return the 500 error code as our webcluster backend is down. > > So can we just get the health status of webcluster in this case?
If you assign webcluster.backend() to req.backend_hint before performing the health check it should work fine. Dridi _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
