本篇文章主要介绍了"Nginx+Nodejs Nginx状态码499"，主要涉及到Nginx+Nodejs方面的内容，对于Linuxjrs看球网直播吧_低调看直播体育app软件下载_低调看体育直播感兴趣的同学可以参考一下：
1、问题描述140.207.202.187 - - [18/May/2016:10:30:58 +0800] "POST/v3/violations HTTP/...
1、问题描述
140.207.202.187 - - [18/May/2016:10:30:58 +0800] "POST/v3/violations HTTP/1.1" 499 0 "-" "-"
42.236.10.71 - - [18/May/2016:10:30:59 +0800] "POST /v3/violationsHTTP/1.1" 499 0 "-" "-"
2、问题分析
google
499 / ClientClosed Request
An Nginx HTTP server extension. This codeis introduced to log the case when the connection is closed by client whileHTTP server is processing its request, making server unable to send the HTTP header back
维基百科
499Client Closed Request (Nginx)
Used in Nginx logs to indicate when the connection has been closed by client while the server is still processing itsrequest, making server unable to send a status code back
nginx源码
./src/http/ngx_http_core_module.c: if (status == NGX_ERROR || status == 499) {
./src/http/ngx_http_request.h:#define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
./src/http/ngx_http_special_response.c: ngx_null_string, /* 499, client has closed connection */
这是nginx定义的一个状态码，用于表示这样的错误：服务器返回http头之前，客户端就提前关闭了http连接，这很有可能是因为服务器端处理的时间过长，客户端“不耐烦”了。
进一步查找
查找“NGX_HTTP_CLIENT_CLOSED_REQUEST”
./src/http/ngx_http_upstream.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_upstream.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_upstream.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_upstream.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_upstream.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_upstream.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_request.c: || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
./src/http/ngx_http_spdy.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_spdy.c: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_spdy.c: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_spdy.c: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/modules/tfs/ngx_http_tfs_server_handler.c: return NGX_HTTP_CLIENT_CLOSED_REQUEST;
./src/http/modules/tfs/ngx_http_tfs.c: if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
./src/http/modules/tfs/ngx_http_tfs.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/modules/lua/ngx_http_lua_socket_tcp.c: if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST) {
./src/http/modules/lua/ngx_http_lua_control.c: && rc != NGX_HTTP_CLIENT_CLOSED_REQUEST)
./src/http/modules/lua/ngx_http_lua_control.c: && rc != NGX_HTTP_CLIENT_CLOSED_REQUEST
./src/http/modules/lua/ngx_http_lua_subrequest.c: && rc != NGX_HTTP_CLIENT_CLOSED_REQUEST))
./src/http/modules/lua/ngx_http_lua_util.c: return NGX_HTTP_CLIENT_CLOSED_REQUEST;
./src/http/modules/lua/ngx_http_lua_util.c: return NGX_HTTP_CLIENT_CLOSED_REQUEST;
./src/http/modules/lua/ngx_http_lua_util.c: return NGX_HTTP_CLIENT_CLOSED_REQUEST;
./src/http/ngx_http_spdy_v3.c: NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_spdy_v3.c: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_spdy_v3.c: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_spdy_v3.c: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
./src/http/ngx_http_request.h:#define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
