On 30/12/2021 10:17, Dridi Boukelmoune wrote:
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
Thank you, that did the trick. I knew it had to be something simple that i overlooked.
Have a wonderful 2022 all. regards Johan _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
