2018-04-26

nginx  健康检查配置

（1）upstream配置

 check interval=1000 rise=2 fall=5 timeout=10000 type=http port=6002;

  check_http_send "GET /info HTTP/1.0\r\n\r\n"; #注意这里检查可达的URL

   check_http_expect_alive http_2xx http_3xx;

（2）location 配置

  proxy_connect_timeout 90;

 proxy_send_timeout 300;

  proxy_read_timeout 300;

（3）生效日志

/logs/error.log 如果出现不可达该日志一直检测！

示例：

############################################################

# $Name:        nginx.conf

# $Version:      v1.0

# $Description:  tengine配置

# #author        chris

############################################################

#user  nobody;

#user  nginx;

worker_processes 4;

#worker_rlimit_nofile 8192;

events {

    worker_connections  1024;

use epoll;

}

http {

    include      mime.types;

    default_type  application/octet-stream;

    #access_log  logs/access.log  main;

    #error_log  logs/error.log;

    sendfile          on;

    tcp_nopush        on;

    tcp_nodelay        on;

    server_tokens      off;

    gzip              on;

    gzip_types        text/plain text/css application/javascript application/x-javascript text/xml application/xml application/json;

    gzip_disable      "MSIE [1-6].(?!.*SV1)";

    gzip_vary          on;

    gzip_comp_level    6;

    gzip_min_length    1024;

    gzip_buffers      16 8k;

    keepalive_timeout  60;

    client_max_body_size 20m;

    upstream api {

        server 172.XX.XX.30:6002;

        server 172.XX.XX.18:6002;

        check interval=1000 rise=2 fall=5 timeout=10000 type=http port=6002;

        check_http_send "GET /info HTTP/1.0\r\n\r\n";

        check_http_expect_alive http_2xx http_3xx;

    }

    upstream fdfs {

        server 172.16.0.9:22122;

    }

    #websocket配置

    upstream wsbackend {

      server 172.24.124.75:8080;

    }

    map $http_upgrade $connection_upgrade {

    }

    server {

        listen      80;

        server_name  saas.test;

#access_log  /usr/local/nginx/logs/saas.test/access.log  main;

#error_log  /usr/local/nginx/logs/saas.test/error.log;

        location / {

            root  html;

            index  index.html index.htm;

        }

        #location /wechat {

#    root html;

#  wechat/index wechat/index.html wechat/index.htm;

#}

        location /gi-saas-sd- {

                proxy_pass http://api;

                proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_set_header Host $http_host;

proxy_set_header X-NginX-Proxy true;

proxy_http_version 1.1;

proxy_set_header Upgrade $http_upgrade;

proxy_set_header Connection "upgrade";

                proxy_connect_timeout 90;

                proxy_send_timeout 300;

                proxy_read_timeout 300;

        }

    location /longhu- {

        proxy_pass http://api;

    }

    location /customer-service- {

      proxy_pass http://api;

    }

    location /zuul/ {

        proxy_pass http://api;

    }

location /group1/ {

proxy_pass http://fdfs;

}

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html

        #

        error_page  500 502 503 504  /50x.html;

        location = /50x.html {

            root  html;

}

    }

}