nginx 的 mirror 功能

nginx 1.13.4 出的新功能,ngx_http_mirror_module

The ngx_http_mirror_module module (1.13.4) implements mirroring of an original request by creating background mirror subrequests. Responses to mirror subrequests are ignored.

範例其實就講的還蠻清楚的:

location / {
    mirror /mirror;
    proxy_pass http://backend;
}

location /mirror {
    internal;
    proxy_pass http://test_backend$request_uri;
}

如果拿 nginx 當 load balancer 的人,可以用這個功能做些事情...

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