3-Tier (Session Clustering)

WAS 1,2 서버의 세션을 공유함으로써 로그인같은 기능을 구현시 새로고침으로 로그아웃 되는 현상을 막을 수 있다.

---

[WAS 1]
vim /usr/local/tomcat/conf/server.xml

# Engine name 블럭을 찾아 집어 넣는다

<!-- clustering -->
        <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8"  channelStartOptions="3">
                <Manager className="org.apache.catalina.ha.session.DeltaManager" expireSessionsOnShutdown="false" notifyListenersOnReplication="true"/>
                <Channel className="org.apache.catalina.tribes.group.GroupChannel">
                        <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
                                <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender" />
                        </Sender>
                        <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
                        address="WAS1_IP"
                        port="4055"
                        autoBind="0"
                        selectorTimeout="5000"
                        maxThreads="6"/>

                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpPingInterceptor" staticOnly="true"/>
                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector" />
                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor">
                        <Member
                                className="org.apache.catalina.tribes.membership.StaticMember"
                                port="4056"
                                host="WAS2_IP"
                                uniqueId="{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2}"
                        />
                        </Interceptor>
                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatchInterceptor"/>
                </Channel>

                <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;" />
                <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
                <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener" />
        </Cluster>
        <!-- clustering  -->

***

[WAS 2]
vim /usr/local/tomcat/conf/server.xml

# Engine name 블럭을 찾아 집어 넣는다

<!-- clustering -->
        <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8"  channelStartOptions="3">
                <Manager className="org.apache.catalina.ha.session.DeltaManager" expireSessionsOnShutdown="false" notifyListenersOnReplication="true"/>
                <Channel className="org.apache.catalina.tribes.group.GroupChannel">
                        <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
                                <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender" />
                        </Sender>
                        <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
                        address="WAS2_IP"
                        port="4055"
                        autoBind="0"
                        selectorTimeout="5000"
                        maxThreads="6"/>

                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpPingInterceptor" staticOnly="true"/>
                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector" />
                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor">
                        <Member
                                className="org.apache.catalina.tribes.membership.StaticMember"
                                port="4056"
                                host="WAS1_IP"
                                uniqueId="{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1}"
                        />
                        </Interceptor>
                        <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatchInterceptor"/>
                </Channel>

                <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;" />
                <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
                <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener" />
        </Cluster>
        <!-- clustering  -->

***

[WAS 1,2]
cd /usr/local/tomcat/webapps/ROOT/WEB-INF
vim web.xml

#추가
<distributable/>