## 長連接 1. 客戶端到nginx : keepalive_timeout 65; 2. nginx到上游服務(upstream) : keepalive 32; | keepalive_requests 100; | keepalive_timeout 60s; ## proxy_connection_timeout nginx到上游服務器的連接超時時間;三次握手的超時時間; 語法: ``` proxy_connection_timeout time; ``` 默認值: ``` proxy_connection_timeout 60s; ``` 上下文: ``` http | server | location ``` ## proxy_socket_keepalive 比較操作系統底層.平時不用;如果設為on,就是直接復用TCP的長連接; 語法: ``` proxy_socket_keepalive on | off; ``` 默認值: ``` proxy_socket_keepalive off; ``` 上下文: ``` http | server | location ``` ## proxy_send_timeout 代理nginx沒有向上游服務器發送內容的超時時間; 語法: ``` proxy_send_timeout time; ``` 默認值: ``` proxy_send_timeout 60s; ``` 上下文: ``` http | server | location ``` ## proxy_ignore_client_abort 如果客戶端給代理服務器(nginx)建立的連接已經斷開了,那么代理服務器是不是忽略客戶端發送給應用服務器的請求;如果是off的話,那么應用服務器會正常響應后再去關閉; 語法: ``` proxy_ignore_client_abort on | off; ``` 默認值: ``` proxy_ignore_client_abort off; ``` 上下文: ``` http | server | location ```