当然，所有下面这些都来源tomcat官方文档，！所以看官方文档，最好！！！！
上面的配置是在两台不同的配置上进行，tomcat负载和session复制都成功了。但是如果在同一台机子上配置，则session复制总是不能成功，搜索了很多解决方式都不正确。
http://jackandroid.iteye.com/blog/627147另外一篇好文：
apache2.2.16+mod_jk.1.2.30+tomcat7.0.2集群session复制http://wenku.baidu.com/view/380b95f69e3143323968937e.html
原文：http://baiying.blog.51cto.com/1068039/731021
ulimit -SHn 65535
echo "ulimit -SHn 65535" >>/etc/rc.local
环境：
redhat5.4、pcre-8.12、nginx-upstream-jvm-route-0.1、nginx-1.0.5、apache-tomcat-6.0.33
nginx服务器地址：192.168.0.40
tomcat1:192.168.0.20
tomcat2:192.168.0.30
拓扑如下：
1.安装nginx
tar zxf pcre-8.12.tar.gz
cd pcre-8.12
./configure
make;make install
下载下面的插件安装，否则nginx无法识别tomcat中jvmRoute，从而无法达到session复制的效果。
wget
http://friendly.sinaapp.com//LinuxSoft/nginx-upstream-jvm-route-0.1.tar.gz
tar xzf nginx-upstream-jvm-route-0.1.tar.gz
tar xzf nginx-1.0.5.tar.gz
cd nginx-1.0.5
patch -p0 <../nginx_upstream_jvm_route/jvm_route.patch
/configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-pcre=/root/pcre-8.12 --add-module=../nginx_upstream_jvm_route/
#--with-pcre=指向的是pcre的源码包
make;make install
2.配置nginx
vim /usr/local/nginx/conf/nginx.conf
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
pid /usr/local/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200;
events {
worker_connections 5000;
}
http {
upstream backend {
server 192.168.0.20:8080 srun_id=tomcat1; //在tomcat的配置里会配置jvmRoute为tomcat1
server 192.168.0.30:8080 srun_id=tomcat2;
jvm_route $cookie_JSESSIONID|sessionid reverse;
}
include mime.types;
default_type application/octet-stream;
#charset gb2312;
charset UTF-8;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 20m;
limit_rate 1024k;
sendfile on;
tcp_nopush on;
keepalive_timeout 60;
tcp_nodelay on;
fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;
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;
gzip_vary on;
server
{
listen 80;
server_name www.baiying.com;
index index.jsp index.htm index.html;
root /usr/www;
location / {
proxy_pass
http://backend;
proxy_redirect off;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
}
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
{
expires 30d;
}
location ~ .*\.(js|css)?$
{
expires 1h;
}
location /Nginxstatus {
stub_status on;
access_log off;
}
log_format access '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" $http_x_forwarded_for';
}
}
[root@slave conf]# /usr/local/bin/nginx.sh stop
[root@slave conf]# /usr/local/bin/nginx.sh start
3.安装tomcat
1）安装tomcat_1
tar zxf apache-tomcat-6.0.33.tar.gz
mv apache-tomcat-6.0.33/usr/local/tomcat
cp tomcat-replication.jar /usr/local/tomcat/lib
2）安装tomcat_2，步骤同1）
4.分别在tomcat服务器安装jdk
chmod 755 jdk-6u26-linux-i586-rpm.bin
./jdk-6u26-linux-i586-rpm.bin
cat >>/etc/profile <<EOF
export JAVA_HOME=/usr/java/jdk1.6.0_26
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOMR/bin
EOF;
source /etc/profile //使环境变量立即生效
5.tomcat集群配置
tomcat1配置：
修改conf/server.xml配置文件
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="8">
<Manager className="org.apache.catalina.ha.session.DeltaManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"/>
<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<Membership className="org.apache.catalina.tribes.membership.McastService"
address="224.0.0.4"
port="45564"
frequency="500"
dropTime="3000"/>
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="192.168.0.20"
port="4001"
autoBind="100"
selectorTimeout="5000"
maxThreads="6"/>
<Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender" />
</Sender>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/"
deployDir="/tmp/war-deploy/"
watchDir="/tmp/war-listen/"
watchEnabled="false"/>
<ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>
tomcat2配置：
修改conf/server.xml配置文件
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2">
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="8">
<Manager className="org.apache.catalina.ha.session.DeltaManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"/>
<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<Membership className="org.apache.catalina.tribes.membership.McastService"
address="224.0.0.4"
port="45564"
frequency="500"
dropTime="3000"/>
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="192.168.0.30"
port="4000"
autoBind="100"
selectorTimeout="5000"
maxThreads="6"/>
<Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender" />
</Sender>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
tempDir="/tmp/war-temp/"
deployDir="/tmp/war-deploy/"
watchDir="/tmp/war-listen/"
watchEnabled="false"/>
<ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>
6.session配置
修改web应用里面WEB-INF目录下的web.xml文件，加入标签
<distributable/>
直接加在</web-app>之前
开启网卡组播功能：
route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0
7.创建jsp测试页面
在tomcat1安装路径下建立目录test
mkdir /usr/local/tomcat/webapps/ROOT/test/
vi index.jsp
<html>
<title>
tomcat1 jsp
</title>
<%
String showMessage="Oh My God 192.168.0.20 华仔!";
out.print(showMessage);
%>
</html>
----------------------------
在tomcat2安装路径下建立目录test
mkdir /usr/local/tomcat/webapps/ROOT/test/
vi index.jsp
<html>
<title>
tomcat2 jsp
</title>
<%
String showMessage="Oh My God 192.168.0.30 华仔!";
out.print(showMessage);
%>
</html>
转载于:https://www.cnblogs.com/yuanq_20/articles/3046222.html
