aapche2.2.4 tomcat6 mod_proxy 集群和负载平衡

部分应用来自http://www.iteye.com/topic/757125

1.共享session和tomcat集群：在server.xml中添加如下，位置在<Engine name="Catalina" defaultHost="localhost" >下 在Engine 中添加 jvmRoute="tomcat6_a";

写道

<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="228.0.0.4"
port="45564"
frequency="500"
dropTime="3000"/>

<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="auto"
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"/>
</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>

 2. 在apache httpd.conf中添加如下

写道

#虚拟机配置,负载均衡配置
<VirtualHost *:80>
ServerAdmin [e-mail]
ServerName localhost
ServerAlias localhost
#小心，有些地方要有空格
ProxyPass / balancer://cluster/ stickysession=JSESSIONID|jsessionid nofailover=On
ProxyPassReverse / balancer://cluster/
#ErrorLog "logs/error.log"
#CustomLog "logs/access.log" common
</VirtualHost>

#The ProxyRequests directive should usually be set off when using ProxyPass.
ProxyRequests Off
<proxy balancer://cluster>
BalancerMember ajp://localhost:8009 loadfactor=1 route=tomcat6_a smax=5 max=20 ttl=120 retry=300 timeout=15
BalancerMember ajp://localhost:8019 loadfactor=1 route=tomcat6_b smax=5 max=20 ttl=120 retry=300 timeout=15
# status=+H为配置热备，当所有机器都over时，才会请求该机器
#BalancerMember http://192.168.1.218:8009 status=+H
ProxySet lbmethod=bytraffic
</proxy>

 3.最后在web.xml中添加 <distributable/> 分布式部署
 注：此文只为个人记事