在哪给人做网站,wordpress 主题开发,wordpress igoogle,seo单页快速排名近期由于公司举行大促#xff0c;访问量巨增#xff0c;预计流量为平时流量的60倍#xff0c;在增加了两台服务器后#xff0c;为了更大程度的压榨服务器性能#xff0c;从各个层面上进行了优化#xff0c;现在做下总结以备忘。 1#xff09;nginx优化 nginx优化主要涉及…近期由于公司举行大促访问量巨增预计流量为平时流量的60倍在增加了两台服务器后为了更大程度的压榨服务器性能从各个层面上进行了优化现在做下总结以备忘。 1nginx优化 nginx优化主要涉及多核IO线程数需要同步修改系统IOepollgzip等等可能还会涉及upstream注意以下标红部分 worker_processes 8;
worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000;
error_log /var/log/nginx_error.log error;
pid /opt/nginx-1.2.0/nginx.pid;worker_rlimit_nofile 65535;
events
{use epoll;worker_connections 65535;
}http
{include mime.types;default_type application/octet-stream;charset utf-8;server_names_hash_bucket_size 128;client_header_buffer_size 32k;large_client_header_buffers 4 32k;client_max_body_size 8m;sendfile on;tcp_nopush on;keepalive_timeout 60;tcp_nodelay on;server_tokens off;fastcgi_connect_timeout 300;fastcgi_send_timeout 300;fastcgi_read_timeout 300;fastcgi_buffer_size 128k;fastcgi_buffers 8 128k;fastcgi_busy_buffers_size 128k;fastcgi_temp_file_write_size 128k;gzip on;gzip_min_length 1k;gzip_buffers 4 16k;gzip_http_version 1.0;gzip_comp_level 2;gzip_types text/plain application/x-javascript text/css application/xml text/javascript application/json;gzip_vary on;add_header Vary Accept-Encoding;#log_format access $remote_addr - $remote_user [$time_local] $request $status $body_bytes_sent $http_referer $http_user_agent $request_time;log_format access $http_x_forwarded_for - $remote_user [$time_local] $request $status $body_bytes_sent $http_referer $http_user_agent $request_time ;access_log /var/log/httpd/search_access.log access;server{listen 80;server_name localhost;ssi on;ssi_silent_errors off;
location / {root /data/www;index index.html index.htm index.php index.jsp;expires 1d;}location /app {proxy_pass http://localhost/app;proxy_set_header Host $host;proxy_set_header X-Real-IP $remote_addr;proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;client_max_body_size 50m;client_body_buffer_size 256k;proxy_connect_timeout 30;proxy_send_timeout 30;proxy_read_timeout 60;proxy_buffer_size 256k;proxy_buffers 4 256k;proxy_busy_buffers_size 256k;proxy_temp_file_write_size 256k;proxy_next_upstream error timeout invalid_header http_500 http_503 http_404;proxy_max_temp_file_size 128m;}error_page 404 403 /404.html;error_page 500 502 503 504 /50x.html;location /50x.html {root html;}location /404.html {root html;}}
} 备注除了以上标红的部分外还需要注意如果想在nginx日志中获取访问端ip的话如果前端有负载均衡设备时需要使用上面橙色部分配置否则则使用上面蓝色部分配置。 2应用服务器优化 应用服务器包含tomcatresin主要涉及调整VM参数IO调整为NIO线程数日志配置等等 2.1resin.conf配置 jvm-arg-Xmn2500m/jvm-argjvm-arg-Xms4000m/jvm-argjvm-arg-Xmx4000m/jvm-argjvm-arg-XX:PermSize256M/jvm-argjvm-arg-XX:MaxPermSize256m/jvm-argjvm-arg-XX:UseParNewGC/jvm-argjvm-arg-XX:UseConcMarkSweepGC/jvm-argjvm-arg-XX:UseCMSCompactAtFullCollection/jvm-argjvm-arg-XX:CMSFullGCsBeforeCompaction0/jvm-argjvm-arg-XX:CMSClassUnloadingEnabled/jvm-argjvm-arg-XX:-CMSParallelRemarkEnabled/jvm-argjvm-arg-XX:CMSInitiatingOccupancyFraction80/jvm-argjvm-arg-Xss512k/jvm-arg!--jvm-arg-XX:-OmitStackTraceInFastThrow/jvm-argjvm-arg-XX:PrintGCDetails/jvm-argjvm-arg-XX:PrintGCTimeStamps/jvm-argjvm-arg-XX:PrintHeapAtGC/jvm-argjvm-arg-Xloggc:serverGC.log/jvm-arg--jvm-arg-Dcom.sun.management.jmxremote/jvm-arg 其中-XX:-OmitStackTraceInFastThrow用于应用出现了IndexOutOfBoundsException看不到异常堆栈的情况打开这个参数以关闭虚拟机优化让堆栈重新抛出以便定位问题 所有GC的参数是为了查看GC日志如果FullGC很频繁则需要进行VM的新生代及老年代的调整以减少FullGC次数。 2.2tomcat的server.xml配置 Connector port8080 protocolorg.apache.coyote.http11.Http11NioProtocol connectionTimeout10000 maxThreads500minSpareThreads100maxSpareThreads300acceptCount100redirectPort8443URIEncodingutf-8 / 其中org.apache.coyote.http11.Http11NioProtocol用于将tomcat的处理模式修改为NIO。 2.3tomcat的catalina.sh配置 JAVA_OPTS-server -Xmn2500m -Xms4000m -Xmx4000m -XX:PermSize256M -XX:MaxPermSize256m -XX:UseParNewGC -XX:UseConcMarkSweepGC -XX:UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction0 -XX:CMSClassUnloadingEnabled -XX:-CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction80 -Xss512k -Dclient.encoding.overrideUTF-8 -Dfile.encodingUTF-8 $JAVA_OPTS
echo $JAVA_OPTS 调整VM参数同resin一样。 2.4tomcat的logging.properties配置 参考这篇博文解决Tocmat6.x的catalina.out日志不断增加问题 整个优化过程还包括尽可能的解决可能出现瓶颈的地方比如压力测试的瓶颈点不要去访问数据库等等都是需要注意的。 转载于:https://www.cnblogs.com/javapro/archive/2013/03/26/2983041.html
