Srebrenko Šehić at 2010-7-14 6:40 wrote:
> Hi list,
>
> I've been looking at developing a module that can provide current
> backend/upstream server status in a reverse proxy setup.
> Is there a way to query all the workers on the current upstreams
> status? I just need to know if they are "up" or "down".
>
> The idea is to be able to do something like this:
>
> worker_processes 2;
>
> http {
>
> upstream backend_1 {
> server 192.168.0.10:80;
> server 192.168.0.11:80;
> }
>
> server {
> server_name 127.0.0.1;
>
> location /monitor {
> upstream_status on;
> }
> }
> }
>
> Then do a curl http://127.0.0.1/monitor and get something like this back:
>
> backend_1;worker_1;192.168.0.10:80;up;
> backend_1;worker_2;192.168.0.10:80;up;
> backend_1;worker_1;192.168.0.11:80;down;
> backend_1;worker_2;192.168.0.11:80;down;
>
> Any hints?
>
> I assume this kind of information must be present somewhere in each
> worker, but I just can't seem to figure out how to get to that data.
>
See this module as an example:
http://github.com/cep21/healthcheck_nginx_upstreams
> Thanks,
> Srebrenko
>
> _______________________________________________
> nginx-devel mailing list
> nginx-devel@nginx.org
> http://nginx.org/mailman/listinfo/nginx-devel
>
>


--
Weibin Yao


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