Доброго дня! Решили попробовать nginx plus и модуль healt_heck. Собственно отрывок из конфига: match backend { status 200-403;} upstream backend { zone upstream_backend 64k; queue 1024; server slow_start=60s max_cons=1024; least_conn;} server { listen 80; location / { health_check match=backend; proxy_pass http://backend; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_connect_timeout 1s; proxy_next_upstream error timeout invalid_header; proxy_http_version 1.1; proxy_set_header Connection ""; proxy_buffers 4 256k; } location = /status { stub_status on; access_log off; } location = /status.json { status; } location /upstream_conf { upstream_conf; } } Есть часть бэкендов которые в данный момент выключены физически, но они прописаны в upstream backend. При этом запросы на эти бэкенды продолжают сыпаться, а health_check не отправляет health requests на бэкенды, о чем можно догадаться прочитав статус: { "active": 0, "backup": false, "downstart": 1407244491219, "downtime": 515646, "fails": 78, "health_checks": { "checks": 0, "fails": 0, "unhealthy": 0 }, "id": 28, "keepalive": 0, "max_conns": 1024, "received": 0, "requests": 78, "responses": { "1xx": 0, "2xx": 0, "3xx": 0, "4xx": 0, "5xx": 0, "total": 0 }, "sent": 0, "server": ":80", "state": "unavail", "unavail": 1, "weight": 1 } root@hostname:/etc/nginx# uname -aLinux hostname 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux root@hostname:/etc/nginx# nginx -Vnginx version: nginx/1.7.3 (nginx-plus-r4)built by gcc 4.8.2 (Ubuntu 4.8.2-19ubuntu1)TLS SNI support enabledconfigure arguments: --build=nginx-plus-r4 --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_f4f_module --with-http_hls_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_session_log_module --with-http_stub_status_module --with-http_auth_request_module --with-mail --with-mail_ssl_module --with-file-aio --with-http_spdy_module --with-ipv6 --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,--as-needed' ___
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