昨天已经将两实例cluster多播方案共享Session配置成功，其中的关键就在于server.xml中，engine->channel->receiver节点中address得写成自己的真实ip地址，port要岔开。

今天乘热打铁，再配置一次三机（三实例）方案。

先上图小小炫耀一下：

首先从Tomcat官网下载apache-tomcat-9.0.30版本，解压后拷贝三份放到一个目录下：

之后需要设置每个实例的JAVA_HOME和CATALINA_HOME，方法是用文本编辑器修改每个tomcat实例下bin里的startup.bat文件，在文件头增加以下两句：

set JAVA_HOME="C:\pleiades\java\8"

set CATALINA_HOME="D:\Users\os-yang.he\tomcatcluster\tomcat01"

其中JAVA_HOME是我机器上预先配好的，CATALINA_HOME则是实例所在的物理地址。

如果是在unix/linux上，自然修改的是startup.sh

第二步修改端口，一个实例有三处需要修改。第一个可以保持默认，第二第三必须修改，这样就是两个文件六处需要修改。修改的具体方法是将server port和两个connector port修改掉，以下是我的修改结果：

Tomcat1：

<Server port="8005" shutdown="SHUTDOWN">

...

<Connector port="" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

...

<Connector port="" protocol="AJP/1.3" redirectPort="8443" />

Tomcat2:

<Server port="" shutdown="SHUTDOWN">

...

<Connector port="" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

...

<Connector port="" protocol="AJP/1.3" redirectPort="8443" />

Tomcat3:

<Server port="" shutdown="SHUTDOWN">

...

<Connector port="" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" />

...

<Connector port="" protocol="AJP/1.3" redirectPort="8443" />

第三步拷贝cluster节点，具体方法是把以下文本拷贝到server.xml的engine节点中：

<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="10.0.86.208"

              port=""

              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>

上面暗红粗体部分是你需要修改的，ip要改成自己机器上真实ip（在cmd窗口敲ipconfig出来Ethernet0下面那项），port则三实例各不相同，我设定是4080/4084/4088.

最后一步是拷贝war file，请到 极简显示sessionid的jsp程序 war下载 下载文件，放到各个实例的webapps目录下就好。

之后就是打开cmd窗口，到各个实例的bin目录下，执行startup.bat启动实例了，然后再到浏览器看结果。

最后附上三个Tomcat的server.xml文件及Nginx的nginx.conf文件，蓝色粗体为修改点：

Tomcat1:

<?xml version="1.0" encoding="UTF-8"?>

<!--

  Licensed to the Apache Software Foundation (ASF) under one or more

  contributor license agreements.  See the NOTICE file distributed with

  this work for additional information regarding copyright ownership.

  The ASF licenses this file to You under the Apache License, Version 2.0

  (the "License"); you may not use this file except in compliance with

  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software

  distributed under the License is distributed on an "AS IS" BASIS,

  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  See the License for the specific language governing permissions and

  limitations under the License.

-->

<!-- Note:  A "Server" is not itself a "Container", so you may not

     define subcomponents such as "Valves" at this level.

     Documentation at /docs/config/server.html

 -->

<Server port="" shutdown="SHUTDOWN">

  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />

  <!-- Security listener. Documentation at /docs/config/listeners.html

  <Listener className="org.apache.catalina.security.SecurityListener" />

  -->

  <!--APR library loader. Documentation at /docs/apr.html -->

  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />

  <!-- Prevent memory leaks due to use of particular java/javax APIs-->

  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />

  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources

       Documentation at /docs/jndi-resources-howto.html

  -->

  <GlobalNamingResources>

    <!-- Editable user database that can also be used by

         UserDatabaseRealm to authenticate users

    -->

    <Resource name="UserDatabase" auth="Container"

              type="org.apache.catalina.UserDatabase"

              description="User database that can be updated and saved"

              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"

              pathname="conf/tomcat-users.xml" />

  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share

       a single "Container" Note:  A "Service" is not itself a "Container",

       so you may not define subcomponents such as "Valves" at this level.

       Documentation at /docs/config/service.html

   -->

  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->

    <!--

    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"

        maxThreads="150" minSpareThreads="4"/>

    -->

    <!-- A "Connector" represents an endpoint by which requests are received

         and responses are returned. Documentation at :

         Java HTTP Connector: /docs/config/http.html

         Java AJP  Connector: /docs/config/ajp.html

         APR (HTTP/AJP) Connector: /docs/apr.html

         Define a non-SSL/TLS HTTP/1.1 Connector on port 8080

    -->

    <Connector port="" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    <!-- A "Connector" using the shared thread pool-->

    <!--

    <Connector executor="tomcatThreadPool"

               port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443

         This connector uses the NIO implementation. The default

         SSLImplementation will depend on the presence of the APR/native

         library and the useOpenSSL attribute of the

         AprLifecycleListener.

         Either JSSE or OpenSSL style configuration may be used regardless of

         the SSLImplementation selected. JSSE style configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"

               maxThreads="150" SSLEnabled="true">

        <SSLHostConfig>

            <Certificate certificateKeystoreFile="conf/localhost-rsa.jks"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2

         This connector uses the APR/native implementation which always uses

         OpenSSL for TLS.

         Either JSSE or OpenSSL style configuration may be used. OpenSSL style

         configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"

               maxThreads="150" SSLEnabled="true" >

        <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />

        <SSLHostConfig>

            <Certificate certificateKeyFile="conf/localhost-rsa-key.pem"

                         certificateFile="conf/localhost-rsa-cert.pem"

                         certificateChainFile="conf/localhost-rsa-chain.pem"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->

    <Connector port="" protocol="AJP/1.3" redirectPort="8443" />

    <!-- An Engine represents the entry point (within Catalina) that processes

         every request.  The Engine implementation for Tomcat stand alone

         analyzes the HTTP headers included with the request, and passes them

         on to the appropriate Host (virtual host).

         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :

    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">

    -->

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

        <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="10.0.86.208"

                      port="4080"

                      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>

      <!--For clustering, please take a look at documentation at:

          /docs/cluster-howto.html  (simple how to)

          /docs/config/cluster.html (reference documentation) -->

      <!--

      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>

      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords

           via a brute-force attack -->

      <Realm className="org.apache.catalina.realm.LockOutRealm">

        <!-- This Realm uses the UserDatabase configured in the global JNDI

             resources under the key "UserDatabase".  Any edits

             that are performed against this UserDatabase are immediately

             available for use by the Realm.  -->

        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"

               resourceName="UserDatabase"/>

      </Realm>

      <Host name="localhost"  appBase="webapps"

            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications

             Documentation at: /docs/config/valve.html -->

        <!--

        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />

        -->

        <!-- Access log processes all example.

             Documentation at: /docs/config/valve.html

             Note: The pattern used is equivalent to using pattern="common" -->

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

               prefix="localhost_access_log" suffix=".txt"

               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>

    </Engine>

  </Service>

</Server>

Tomcat2：

<?xml version="1.0" encoding="UTF-8"?>

<!--

  Licensed to the Apache Software Foundation (ASF) under one or more

  contributor license agreements.  See the NOTICE file distributed with

  this work for additional information regarding copyright ownership.

  The ASF licenses this file to You under the Apache License, Version 2.0

  (the "License"); you may not use this file except in compliance with

  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software

  distributed under the License is distributed on an "AS IS" BASIS,

  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  See the License for the specific language governing permissions and

  limitations under the License.

-->

<!-- Note:  A "Server" is not itself a "Container", so you may not

     define subcomponents such as "Valves" at this level.

     Documentation at /docs/config/server.html

 -->

<Server port="" shutdown="SHUTDOWN">

  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />

  <!-- Security listener. Documentation at /docs/config/listeners.html

  <Listener className="org.apache.catalina.security.SecurityListener" />

  -->

  <!--APR library loader. Documentation at /docs/apr.html -->

  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />

  <!-- Prevent memory leaks due to use of particular java/javax APIs-->

  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />

  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources

       Documentation at /docs/jndi-resources-howto.html

  -->

  <GlobalNamingResources>

    <!-- Editable user database that can also be used by

         UserDatabaseRealm to authenticate users

    -->

    <Resource name="UserDatabase" auth="Container"

              type="org.apache.catalina.UserDatabase"

              description="User database that can be updated and saved"

              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"

              pathname="conf/tomcat-users.xml" />

  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share

       a single "Container" Note:  A "Service" is not itself a "Container",

       so you may not define subcomponents such as "Valves" at this level.

       Documentation at /docs/config/service.html

   -->

  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->

    <!--

    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"

        maxThreads="150" minSpareThreads="4"/>

    -->

    <!-- A "Connector" represents an endpoint by which requests are received

         and responses are returned. Documentation at :

         Java HTTP Connector: /docs/config/http.html

         Java AJP  Connector: /docs/config/ajp.html

         APR (HTTP/AJP) Connector: /docs/apr.html

         Define a non-SSL/TLS HTTP/1.1 Connector on port 8080

    -->

    <Connector port="" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    <!-- A "Connector" using the shared thread pool-->

    <!--

    <Connector executor="tomcatThreadPool"

               port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443

         This connector uses the NIO implementation. The default

         SSLImplementation will depend on the presence of the APR/native

         library and the useOpenSSL attribute of the

         AprLifecycleListener.

         Either JSSE or OpenSSL style configuration may be used regardless of

         the SSLImplementation selected. JSSE style configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"

               maxThreads="150" SSLEnabled="true">

        <SSLHostConfig>

            <Certificate certificateKeystoreFile="conf/localhost-rsa.jks"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2

         This connector uses the APR/native implementation which always uses

         OpenSSL for TLS.

         Either JSSE or OpenSSL style configuration may be used. OpenSSL style

         configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"

               maxThreads="150" SSLEnabled="true" >

        <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />

        <SSLHostConfig>

            <Certificate certificateKeyFile="conf/localhost-rsa-key.pem"

                         certificateFile="conf/localhost-rsa-cert.pem"

                         certificateChainFile="conf/localhost-rsa-chain.pem"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->

    <Connector port="" protocol="AJP/1.3" redirectPort="8443" />

    <!-- An Engine represents the entry point (within Catalina) that processes

         every request.  The Engine implementation for Tomcat stand alone

         analyzes the HTTP headers included with the request, and passes them

         on to the appropriate Host (virtual host).

         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :

    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">

    -->

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

        <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="10.0.86.208"

                      port="4084"

                      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>

      <!--For clustering, please take a look at documentation at:

          /docs/cluster-howto.html  (simple how to)

          /docs/config/cluster.html (reference documentation) -->

      <!--

      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>

      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords

           via a brute-force attack -->

      <Realm className="org.apache.catalina.realm.LockOutRealm">

        <!-- This Realm uses the UserDatabase configured in the global JNDI

             resources under the key "UserDatabase".  Any edits

             that are performed against this UserDatabase are immediately

             available for use by the Realm.  -->

        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"

               resourceName="UserDatabase"/>

      </Realm>

      <Host name="localhost"  appBase="webapps"

            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications

             Documentation at: /docs/config/valve.html -->

        <!--

        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />

        -->

        <!-- Access log processes all example.

             Documentation at: /docs/config/valve.html

             Note: The pattern used is equivalent to using pattern="common" -->

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

               prefix="localhost_access_log" suffix=".txt"

               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>

    </Engine>

  </Service>

</Server>

Tomcat3：

<?xml version="1.0" encoding="UTF-8"?>

<!--

  Licensed to the Apache Software Foundation (ASF) under one or more

  contributor license agreements.  See the NOTICE file distributed with

  this work for additional information regarding copyright ownership.

  The ASF licenses this file to You under the Apache License, Version 2.0

  (the "License"); you may not use this file except in compliance with

  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software

  distributed under the License is distributed on an "AS IS" BASIS,

  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  See the License for the specific language governing permissions and

  limitations under the License.

-->

<!-- Note:  A "Server" is not itself a "Container", so you may not

     define subcomponents such as "Valves" at this level.

     Documentation at /docs/config/server.html

 -->

<Server port="" shutdown="SHUTDOWN">

  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />

  <!-- Security listener. Documentation at /docs/config/listeners.html

  <Listener className="org.apache.catalina.security.SecurityListener" />

  -->

  <!--APR library loader. Documentation at /docs/apr.html -->

  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />

  <!-- Prevent memory leaks due to use of particular java/javax APIs-->

  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />

  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources

       Documentation at /docs/jndi-resources-howto.html

  -->

  <GlobalNamingResources>

    <!-- Editable user database that can also be used by

         UserDatabaseRealm to authenticate users

    -->

    <Resource name="UserDatabase" auth="Container"

              type="org.apache.catalina.UserDatabase"

              description="User database that can be updated and saved"

              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"

              pathname="conf/tomcat-users.xml" />

  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share

       a single "Container" Note:  A "Service" is not itself a "Container",

       so you may not define subcomponents such as "Valves" at this level.

       Documentation at /docs/config/service.html

   -->

  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->

    <!--

    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"

        maxThreads="150" minSpareThreads="4"/>

    -->

    <!-- A "Connector" represents an endpoint by which requests are received

         and responses are returned. Documentation at :

         Java HTTP Connector: /docs/config/http.html

         Java AJP  Connector: /docs/config/ajp.html

         APR (HTTP/AJP) Connector: /docs/apr.html

         Define a non-SSL/TLS HTTP/1.1 Connector on port 8080

    -->

    <Connector port="" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    <!-- A "Connector" using the shared thread pool-->

    <!--

    <Connector executor="tomcatThreadPool"

               port="8080" protocol="HTTP/1.1"

               connectionTimeout="20000"

               redirectPort="8443" />

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443

         This connector uses the NIO implementation. The default

         SSLImplementation will depend on the presence of the APR/native

         library and the useOpenSSL attribute of the

         AprLifecycleListener.

         Either JSSE or OpenSSL style configuration may be used regardless of

         the SSLImplementation selected. JSSE style configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"

               maxThreads="150" SSLEnabled="true">

        <SSLHostConfig>

            <Certificate certificateKeystoreFile="conf/localhost-rsa.jks"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2

         This connector uses the APR/native implementation which always uses

         OpenSSL for TLS.

         Either JSSE or OpenSSL style configuration may be used. OpenSSL style

         configuration is used below.

    -->

    <!--

    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"

               maxThreads="150" SSLEnabled="true" >

        <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />

        <SSLHostConfig>

            <Certificate certificateKeyFile="conf/localhost-rsa-key.pem"

                         certificateFile="conf/localhost-rsa-cert.pem"

                         certificateChainFile="conf/localhost-rsa-chain.pem"

                         type="RSA" />

        </SSLHostConfig>

    </Connector>

    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->

    <Connector port="" protocol="AJP/1.3" redirectPort="8443" />

    <!-- An Engine represents the entry point (within Catalina) that processes

         every request.  The Engine implementation for Tomcat stand alone

         analyzes the HTTP headers included with the request, and passes them

         on to the appropriate Host (virtual host).

         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :

    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">

    -->

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

        <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="10.0.86.208"

                      port="4088"

                      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>

      <!--For clustering, please take a look at documentation at:

          /docs/cluster-howto.html  (simple how to)

          /docs/config/cluster.html (reference documentation) -->

      <!--

      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>

      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords

           via a brute-force attack -->

      <Realm className="org.apache.catalina.realm.LockOutRealm">

        <!-- This Realm uses the UserDatabase configured in the global JNDI

             resources under the key "UserDatabase".  Any edits

             that are performed against this UserDatabase are immediately

             available for use by the Realm.  -->

        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"

               resourceName="UserDatabase"/>

      </Realm>

      <Host name="localhost"  appBase="webapps"

            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications

             Documentation at: /docs/config/valve.html -->

        <!--

        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />

        -->

        <!-- Access log processes all example.

             Documentation at: /docs/config/valve.html

             Note: The pattern used is equivalent to using pattern="common" -->

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

               prefix="localhost_access_log" suffix=".txt"

               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>

    </Engine>

  </Service>

</Server>

再附上Nginx的设置：

#user  nobody;

worker_processes  1;

#error_log  logs/error.log;

#error_log  logs/error.log  notice;

#error_log  logs/error.log  info;

#pid        logs/nginx.pid;

events {

    worker_connections  1024;

}

http {

    include       mime.types;

    default_type  application/octet-stream;

    access_log  logs/access.log;

    sendfile        on;

    keepalive_timeout  65;



    upstream tomcat{

        server localhost:8080;

        server localhost:8084;

        server localhost:8088;

    }

    server {

        listen       80;

        server_name  localhost;

        client_max_body_size 1024m;

        location / {

            proxy_pass http://tomcat;

            proxy_set_header Host $host:$server_port;

        }

        error_page   500 502 503 504  /50x.html;

        location = /50x.html {

            root   html;

        }

    }

    autoindex on;# show folder

    autoindex_exact_size on;# show file size

    autoindex_localtime on;# show file modification time

    server {

        listen       9999 default_server;

        listen       [::]:9999 default_server;

        server_name  _;

        root         D:\Users\os-yang.he\software;

        location / {

        }

        error_page 404 /404.html;

            location = /40x.html {

        }

        error_page 500 502 503 504 /50x.html;

            location = /50x.html {

        }

    }

}

--END-- 2020-01-03 10:04

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