是否有任何Nginx / FastCGI专家可以帮助我?
我正在使用Debian Squeeze运行nox 1.0.11 Mono FastCGI(fastcgi-mono-server4 2.10.2.0)。我注意到FastCGI实例经常崩溃以响应超过~350,000字节的POST请求。虽然这种规模的一些要求是成功的,但它们更有可能因流量增加而失败。此外,通常当FastCGI实例失败时,Nginx工作进程将被僵尸化(即Nginx仍处理请求但超时 - 尽管所有网关都可能已关闭,但不会返回502)。我打开了Nginx调试并在工作进程和FastCGI实例崩溃之前发现了以下内容。
2012/01/11 20:38:42 [debug] 1744#0: *141 writev: 8
2012/01/11 20:38:42 [debug] 1744#0: *141 sendfile: @360448 32768
2012/01/11 20:38:42 [debug] 1744#0: *141 sendfile: 32768, @360448 32768:32768
2012/01/11 20:38:42 [debug] 1744#0: *141 writev: 8
2012/01/11 20:38:42 [debug] 1744#0: *141 sendfile: @393216 12167
2012/01/11 20:38:42 [debug] 1744#0: *141 sendfile: 12167, @393216 12167:12167
2012/01/11 20:38:42 [debug] 1744#0: *141 writev: 9
2012/01/11 20:38:42 [debug] 1744#0: *141 chain writer out: 0000000000000000
2012/01/11 20:38:42 [debug] 1744#0: *141 event timer del: 16: 1326314382071
2012/01/11 20:38:42 [debug] 1744#0: *141 event timer add: 16: 60000:1326314382072
这些只是记录的最后10个项目,但是,如果您想看到更多,我当然可以发布或PM。最后,这是我的Nginx配置文件。
user www-data;
worker_processes 2;
worker_rlimit_nofile 8192;
events {
worker_connections 2048;
use epoll;
}
http {
error_log /var/log/error.log;
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
gzip on;
gzip_http_version 1.1;
gzip_vary on;
gzip_comp_level 6;
gzip_proxied any;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript text/x-js font/opentype application/font-woff;
gzip_buffers 16 8k;
gzip_disable "MSIE [1-6]\.(?!.*SV1)";
upstream backend {
server 127.0.0.1:8080;
server 127.0.0.1:8081;
}
server {
listen 80;
server_name my_server;
root /var/www;
access_log /var/log/host.access.log;
location / {
fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
include fastcgi_params;
fastcgi_pass backend;
fastcgi_next_upstream http_500 http_404 error timeout;
fastcgi_read_timeout 60;
}
location ~* ^.+\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)$ {
root /var/www;
}
}
}
答案 0 :(得分:0)
证明了Mono的LOH并且缺乏对它进行碎片整理是个问题。所以这个解决方案是为这个问题投入更多的内存。
http://blog.mohammadjalloul.com/blogs/mo/archive/2010/02/21/the-large-object-heap.aspx