服务器性能调优

catalina.sh

JAVA_OPTS="-Duser.timezone=GMT+08"   东八区

JAVA_OPTS="$JAVA_OPTS -server -Xms11960m -Xmx11960m -Djava.awt.headless=true" 

大概为物理内存的80%

tomcat的线程数配置：

 <Connector  protocol="org.apache.coyote.http11.Http11Protocol" maxThreads="600" minSpareThreads="100"  acceptCount="700"  port="8088"  connectionTimeout="20000" redirectPort="8443" URIEncoding="utf-8" compression="on" compressionMinSize="50" noCompressionUserAgents="gozilla, traviata" compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain,application/javascript,image/jpg,image/png,image/gif"/>

安装nginx，动静分离

sudo apt-get install nginx 

/etc/nginx/sites-available/default 文件调整：

#app入口全部静态化

location ^~ /app/ {

alias /usr/share/tomcat8-codedeploy/webapps/app/;

expires 1d;

}

#websocket

location /ajaxWebsocket {

proxy_pass http://127.0.0.1:8088/ajaxWebsocket;

proxy_http_version 1.1;

proxy_set_header Upgrade $http_upgrade;

proxy_set_header Connection "upgrade";

}

#web管理静态资源

location ^~ /styles/ {

alias /usr/share/tomcat8-codedeploy/webapps/ROOT/styles/;

expires 1d;

}

#其他

location / {

proxy_pass http://127.0.0.1:8088;  

}

两个ubuntu服务器 4核15G内存。

服务器前面是aws alb负载均衡  进来端口443 ，到服务器是8080的nginx，如果动态资源到8088端口的tomcat。