nginx 与上游服务器建立连接的相关设置

向上游服务建立联系

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Syntax: proxy_connect_timeout time;   #设置TCP三次握手超时时间，默认60秒；默认超时后报502错误 Default: proxy_connect_timeout 60s; Context: http, server, location

　　超时更换上游服务器处理请求

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Syntax: proxy_next_upstream http_502 | ..; Default: proxy_next_upstream error timeout; Context: http, server, location

　　上游连接启用TCP keepalive的长连接

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Syntax: proxy_socket_keepalive on | off; Default: proxy_socket_keepalive off; Context: http, server, location

　　

 

上游连接启用http长连接

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Syntax: keepalive connections; Default: — Context: upstream   Syntax: keepalive_requests number; Default: keepalive_requests 100; Context: upstream

　　修改tcp连接中的local address

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Syntax: proxy_bind address [transparent] | off; Default: — Context: http, server, location     可以使用的变量 proxy_bind $remote_addr; 可以使用不属于所在机器的IP proxy_bind $remote_addr transparent;

　　当客户端关闭连接时

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Syntax: proxy_ignore_client_abort on | off; Default: proxy_ignore_client_abort off; Context: http, server, location

　　向上游服务发送HTTP请求；超时时间

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Syntax: proxy_send_timeout time; Default: proxy_send_timeout 60s; Context: http, server, location

　　接收上游服务器HTTP响应头部

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Syntax: proxy_buffer_size size;  #设置接收上游服务的头部最大值 Default: proxy_buffer_size 4k|8k; Context: http, server, location

　　接收上游服务器HTTP包体大小

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Syntax: proxy_buffers number size;  # 接收上游服务器响应包大小内存设置 Default: proxy_buffers 8 4k|8k; Context: http, server, location

　　接收上游服务器的包体

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Syntax: proxy_buffering on | off;     X-Accel-Buffering  头部 Default: proxy_buffering on; #接收完完整的响应包在在响应给客户端 Context: http, server, location     Syntax: proxy_max_temp_file_size size;  #设之上游服务器响应包过大，后存入磁盘文件。文件大小的设置 Default: proxy_max_temp_file_size 1024m; Context: http, server, location     Syntax: proxy_temp_file_write_size size;  # 每一次向磁盘写入的字节数 Default: proxy_temp_file_write_size 8k|16k; Context: http, server, location     Syntax: proxy_temp_path path [level1 [level2 [level3]]];# 设置存储文件的目录的路径 Default: proxy_temp_path proxy_temp; Context: http, server, location

　　及时转发的包体

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Syntax: proxy_busy_buffers_size size;  #虽然设置缓存上游服务器的响应报文；但也可以接缓存一部分时就发送给客户 Default: proxy_busy_buffers_size 8k|16k; Context: http, server, location

　　接收上游服务器网络速率相关指令

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Syntax: proxy_read_timeout time;  #两次读取超时时间 Default: proxy_read_timeout 60s; Context: http, server, location         Syntax: proxy_limit_rate rate; #限制读取上游服务的响应 Default: proxy_limit_rate 0; Context: http, server, location

　　上游包体的持久化

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Syntax: proxy_store_access users:permissions ...;  #从上游服务接收文件存入本地文件权限的配置方法 Default: proxy_store_access user:rw; Context: http, server, location         Syntax: proxy_store on | off | string;  # on的话会存到root对应的目录下；off不开启，string通过变量重新指定存放目录 Default: proxy_store off; Context: http, server, location

　　配置

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[root@python vhast]# cat shangyou.conf server {     listen 8011;     default_type text/plain;     return 200 '8011 server response.\n'; }   server {     listen 8012;     default_type text/plain;     root html;     location /{     }     location /test {           return 200 '8012 server response. uri: $uri method: $request_method requset: $request http_name: $http_name \n'; } }   [root@python vhast]# cat proxy_method.conf   upstream haha{     #ip_hash;     #hash user_$arg_username;     #server 127.0.0.1:8011;     server 127.0.0.1:8012;     #keepalive  32;     } server {     server_name proxy_pass.com;     error_log rrups_error.log info;         proxy_set_header Connection "";     root /tmp;     location /{         #proxy_pass http://rrups/addurl;         proxy_pass http://haha;         proxy_store   on;         proxy_store_access user:rw group:rw all:r;     } } [root@python vhast]# echo "qwertyuopuughgbbvvbaaa" > ../../html/a.txt   [root@python vhast]# ll /tmp/ 总用量 0 drwx------. 3 root root 17 7月   5 12:35 systemd-private-1c111c1c3c844bb594508d0cf90d1752-chronyd.service-YE54pH drwx------. 3 root root 17 7月   8 12:40 systemd-private-24aea6f6d72d4605a59e86dc56dacf2a-chronyd.service-1Ocoyt drwx------. 3 root root 17 7月   9 12:05 systemd-private-d838c8aa5ea24b2d88e0e1c546dadbcf-chronyd.service-wNkAsB

　　测试

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[root@python vhast]# curl proxy_pass.com/a.txt qwertyuopuughgbbvvbaaa [root@python vhast]# ll /tmp/ 总用量 4 -rw-rw-r--. 1 nginx nginx 23 7月  12 22:07 a.txt drwx------. 3 root  root  17 7月   5 12:35 systemd-private-1c111c1c3c844bb594508d0cf90d1752-chronyd.service-YE54pH drwx------. 3 root  root  17 7月   8 12:40 systemd-private-24aea6f6d72d4605a59e86dc56dacf2a-chronyd.service-1Ocoyt drwx------. 3 root  root  17 7月   9 12:05 systemd-private-d838c8aa5ea24b2d88e0e1c546dadbcf-chronyd.service-wNkAsB