session clustering 적용 (feat.Tomcat7 이상)

이번 프로젝트를 하면서 session clustering 적용하면서 내용을 정리...

-tomcat jvmRoute설정

session clustering을 설정한다는건 apache기준 workers.properties를 설정을 해줬을것이다.

 jvmRoute에 지정한 worker 명을 넣어주면 된다.

빨간색 부분은 중복되지 않은 공유의 톰캣을 구분 값

<Engine name="Catalina" defaultHost="localhost" jvmRoute="worker3_22">

아래 이미지 처럼 JSESSIONID에 .worker3_22로 tomcat을 구분할수 있다.

 

 

- WEB-INF/web.xml (distributable 태그 추가)

<!-- web.xml -->
<distributable/>

- tomcat server.xml (tomcat8 기준)

1. multicast 방식으로 동작하며 address는 ‘228.0.0.4’, port는 ‘45564’를 사용하고 서버 IP는 java.net.InetAddress.getLocalHost().getHostAddress()로 얻어진 IP 값으로 송출됩니다.
2. 먼저 구동되는 서버부터 4000 ~ 4100 사이의 TCP port를 통해 reqplication message를 listening합니다.
3. Listener는 ClusterSessionListener, interceptor는 TcpFailureDetector와 MessageDispatchInterceptor가 설정됩니다.

※ 각 다른 서버에 적용할땐 <Membership> port="45564" <Receiver> port="4000"을 다르게 해야한다.

   ex)<Membership> port="45565" <Receiver> port="4001"

<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="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.MessageDispatchInterceptor"/>
    </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.ClusterSessionListener"/>
</Cluster>

 

※참고 tomcat.apache.org/tomcat-8.5-doc/cluster-howto.html

Apache Tomcat 8 (8.5.58) - Clustering/Session Replication How-To

- tomcat server.xml (tomcat7 기준)

<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8">
	<Manager className="org.apache.catalina.ha.session.BackupManager"
		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"/>

		<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="auto"
			port="4000"  
			autoBind="100"
			selectorTimeout="5000"
			maxThreads="6"/>

		<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>

※참고 tomcat.apache.org/tomcat-7.0-doc/cluster-howto.html

Apache Tomcat 7 (7.0.106) - Clustering/Session Replication HOW-TO