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Tomcat server.xml example

This is an example of a server.xml in a clustered Tomcat 8 with mod_jk. This configuration was used in the article: Set up Tomcat, Apache and mod_jk cluster.

<?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   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="9005" shutdown="SHUTDOWN">
  <!-- Security listener. Documentation at /docs/config/listeners.html
  <Listener className="" />
  <!--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   -->
    <!-- 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" />

  <!-- 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 (blocking & non-blocking)          Java AJP  Connector: /docs/config/ajp.html          APR (HTTP/AJP) Connector: /docs/apr.html          Define a non-SSL HTTP/1.1 Connector on port 8080     -->
    <!-- Connector port="8081" 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 a SSL HTTP/1.1 Connector on port 8443          This connector uses the NIO implementation that requires the JSSE          style configuration. When using the APR/native implementation, the          OpenSSL style configuration is required as described in the APR/native          documentation -->
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"                maxThreads="150" SSLEnabled="true" scheme="https" secure="true"                clientAuth="false" sslProtocol="TLS" />

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="9009" protocol="AJP/1.3" redirectPort="9443" />

    <!-- 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">

      <!--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"/>

      <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 "%r" %s %b" />


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  1. Set up Tomcat, Apache and mod_jk cluster | alex.theedom

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