nginx+tomcat负载均衡集群安装配置
一、所需软件
jdk-6u22-linux-x64.bin、
apache-tomcat-6.0.26.tar.gz
二、安装
1、安装
JDK
./jdk-6u22-linux-i586.bin
mv jdk1.6.0_22/ /usr/local/
2、安装
tomcat
tar zxvf apache-tomcat-6.0.26.tar.gz
mv apache-tomcat-6.0.26 /usr/local/
cd /usr/local/
mv apache-tomcat-6.0.26/ tomcat1
3、配置环境变量
vi /etc/profile
JAVA_HOME=/usr/local/jdk1.6.0_22
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
PATH=$JAVA_HOME/bin:$PATH
export JAVA_HOME CLASSPATH PATH
source /etc/profile
4、测试
java -version
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode, sharing)
5、用普通用户启动
tomcat
cd /usr/local/tomcat1/bin
tar zxvf jsvc.tar.gz
cd jsvc-src
chmod +x configure
./configure --with-java=/usr/local/jdk1.6.0_22
make
6、创建用户
useradd tomcat
7、修改配置文件
vi server.xml（修改如下内容）
<Engine name="Catalina" defaultHost="localhost" jvmRoute="a">
<Host name="your domain" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false">
<Context path="" docBase="/webroot/" workDir="" />
</Host>
8、创建启动脚本
vi /etc/init.d/tomcat1
#!/bin/sh
# Startup Script for Tomcat6
# description: Tomcat Daemon
# processname: jsvc
# pidfile: /var/run/jsvc.pid
. /etc/rc.d/init.d/functions
export JAVA_HOME=/usr/local/jdk1.6.0_22
export CATALINA_HOME=//usr/local/tomcat1
DAEMON_HOME=$CATALINA_HOME/bin
TOMCAT_USER=tomcat
# for multi instances adapt those lines.
TMP_DIR=/var/tmp
PID_FILE=/var/run/jsvc.pid
CATALINA_BASE=$CATALINA_HOME
CATALINA_OPTS=
CLASSPATH=\
$JAVA_HOME/lib/tools.jar:\
$CATALINA_HOME/bin/commons-daemon.jar:\
$CATALINA_HOME/bin/bootstrap.jar
case "$1" in
start)
#
# Start Tomcat
#
$DAEMON_HOME/jsvc-src/jsvc \
-user $TOMCAT_USER \
-home $JAVA_HOME \
-Dcatalina.home=$CATALINA_HOME \
-Dcatalina.base=$CATALINA_BASE \
-Djava.io.tmpdir=$TMP_DIR \
-wait 10 \
-pidfile $PID_FILE \
-outfile $CATALINA_HOME/logs/catalina.out \
-errfile '&1' \
$CATALINA_OPTS \
-cp $CLASSPATH \
org.apache.catalina.startup.Bootstrap
#
# To get a verbose JVM
#-verbose \
# To get a debug of jsvc.
#-debug \
exit $?
;;
stop)
#
# Stop Tomcat
#
$DAEMON_HOME/jsvc-src/jsvc \
-stop \
-pidfile $PID_FILE \
org.apache.catalina.startup.Bootstrap
exit $?
;;
*)
echo "Usage tomcat.sh start/stop"
exit 1;;
esac
chmod a+x /etc/init.d/tomcat1
9、启动
|关闭
su - tomcat
/etc/init.d/tomcat1 start|stop
三、安装第二个
tomcat
cp –r /usr/local/tomcat1 /usr/local/tomcat2
cp /etc/init.d/tomcat1 /etc/init.d/tomcat2
vi server.xml（修改如下内容）
<Server port="8105" shutdown="SHUTDOWN">
<Connector port="8180" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="9443"
URIEncoding="UTF-8" />
<Connector port="8109" protocol="AJP/1.3" redirectPort="9443" />
<Engine name="Catalina" defaultHost="localhost" jvmRoute="b">
vi /etc/init.d/tomcat2（修改如下内容）
export CATALINA_HOME=//usr/local/tomcat2
启动
|关闭
su - tomcat
/etc/init.d/tomcat2 start|stop
四、配置调度器
nginx
vi nginx.conf（增加以下内容）
upstream tomcatserver {
server 127.0.0.1:8080 srun_id=a weight=5 max_fails=2 fail_timeout=600s;
server 127.0.0.1:8180 srun_id=b weight=5 max_fails=2 fail_timeout=600s;
jvm_route $cookie_JSESSIONID|sessionid reverse;
}
server {
listen 80;
server_name your domain;
location / {
root /webroot;
index index.jsp index.do index.html index.htm;
rewrite "^/([0-9]+)\.html$" /a.jsp?id=$1 last;
}
location ~ ^/WEB-INF/* {
deny all;
}
location ~ .*\.(jsp|do)?$ {
proxy_pass http://tomcatserver;
include proxy.conf;
}
log_format mainlogs '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/oa.log mainlogs;
location ~ /\..+ {
deny all;
}
}
重启
nginx
/usr/local/nginx/sbin/nginx -t
/etc/init.d/nginx reload
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