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我们在使用Nginx的时候有不少问题出现，首先我们就来解决下nginx 502错误的问题 经 过分析将nginx的error log打开，发现”pstream sent too big header while reading response header from upstream”这样的错误提示，查阅了一下资料，大意是nginx缓冲区有一个bug造成的,我们网站的页面消耗占用缓冲区可能过大 我们是nginx反向代理 proxy是nginx作为clIEnt转发时使用的，如果header过大，超出了默认的1k，就会引发上述的upstream sent too big header （说白了就是nginx把外部请求给后端Apache ，apache返回的header 太大nginx处理不过来就导致了。 server { listen 80; server_name *.xywy.com ; large_client_header_buffers 4 16k; #charset koi8-r; # Access_log off; location / { #添加这3行 ， proxy_buffer_size 64k; proxy_buffers 32 32k; proxy_busy_buffers_size 128k; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; set $baiduspider ''; if ( $http_user_agent ~ Baiduspider) { set $baiduspider Baidu; } 如果是 nginx+PHPCGI 就该 fastcgi_connect_timeout 60; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on 011/01/07 11:12:57 [error] 10770#0: *38585340 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 116.22.131.154, server: *.xywy.com, request: "GET /ysmp/index.php?did=124994 HTTP/1.0", upstream: "http://127.0.0.1:8080/ysmp/index.php?did=124994", host: "xywy.yn16.com" 后来原来那错误没了出了新错误了 upstream timed out 超时？ server { listen 80; server_name *.xywy.com ; large_client_header_buffers 4 16k; client_max_body_size 300m; client_body_buffer_size 128k; proxy_connect_timeout 600; proxy_read_timeout 600; proxy_send_timeout 600; proxy_buffer_size 64k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; #charset koi8-r; # access_log off; 后来参数我又改了下 就好了。。。 (责任编辑：IT) |