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Subject: RE: [gentoo-server] tomcat5 & sun-jdk issue
Date: Tue, 9 Aug 2005 11:08:18 -0400
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Thread-Topic: [gentoo-server] tomcat5 & sun-jdk issue
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From: "Covington, Chris" <Chris.Covington@plusone.com>
To: <gentoo-server@lists.gentoo.org>
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> can you post your server.xml ? 

Basically it's the default one that comes with the tomcat5 ~x86 ebuild:

<!-- Example Server Configuration File -->
<!-- Note that component elements are nested corresponding to their
     parent-child relationships with each other -->

<!-- A "Server" is a singleton element that represents the entire JVM,
     which may contain one or more "Service" instances.  The Server
     listens for a shutdown command on the indicated port.

     Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" or "Loggers" at this level.
 -->

<Server port="8005" shutdown="ceaaec5a39646db" debug="0">


  <!-- Comment these entries out to disable JMX MBeans support -->
  <!-- You may also configure custom components (e.g. Valves/Realms) by 
       including your own mbean-descriptor file(s), and setting the 
       "descriptors" attribute to point to a ';' seperated list of paths
       (in the ClassLoader sense) of files to add to the default list.
       e.g. descriptors="/com/myfirm/mypackage/mbean-descriptor.xml"
  -->
  <Listener
className="org.apache.catalina.mbeans.ServerLifecycleListener"
            debug="0"/>
  <Listener
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
            debug="0"/>

  <!-- Global JNDI resources -->
  <GlobalNamingResources>

    <!-- Test entry for demonstration purposes -->
    <Environment name="simpleValue" type="java.lang.Integer"
value="30"/>

    <!-- 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">
    </Resource>
    <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
 
<value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>

  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that
share
       a single "Container" (and therefore the web applications visible
       within that Container).  Normally, that Container is an "Engine",
       but this is not required.

       Note:  A "Service" is not itself a "Container", so you may not
       define subcomponents such as "Valves" or "Loggers" at this level.
   -->

  <!-- Define the Tomcat Stand-Alone Service -->
  <Service name="Catalina">

    <!-- A "Connector" represents an endpoint by which requests are
received
         and responses are returned.  Each Connector passes requests on
to the
         associated "Container" (normally an Engine) for processing.

         By default, a non-SSL HTTP/1.1 Connector is established on port
8080.
         You can also enable an SSL HTTP/1.1 Connector on port 8443 by
         following the instructions below and uncommenting the second
Connector
         entry.  SSL support requires the following steps (see the SSL
Config
         HOWTO in the Tomcat 5 documentation bundle for more detailed
         instructions):
         * If your JDK version 1.3 or prior, download and install JSSE
1.0.2 or
           later, and put the JAR files into "$JAVA_HOME/jre/lib/ext".
         * Execute:
             %JAVA_HOME%\bin\keytool -genkey -alias tomcat -keyalg RSA
(Windows)
             $JAVA_HOME/bin/keytool -genkey -alias tomcat -keyalg RSA
(Unix)
           with a password value of "changeit" for both the certificate
and
           the keystore itself.

         By default, DNS lookups are enabled when a web application
calls
         request.getRemoteHost().  This can have an adverse impact on
         performance, so you can disable it by setting the
         "enableLookups" attribute to "false".  When DNS lookups are
disabled,
         request.getRemoteHost() will return the String version of the
         IP address of the remote client.
    -->

    <!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 8080 -->
    <Connector port="8080"
               maxThreads="150" minSpareThreads="25"
maxSpareThreads="75"
               enableLookups="false" redirectPort="8443"
acceptCount="100"
               debug="0" connectionTimeout="20000" 
               disableUploadTimeout="true" />
    <!-- Note : To disable connection timeouts, set connectionTimeout
value
     to 0 -->

        <!-- Note : To use gzip compression you could set the following
properties :

                           compression="on" 
                           compressionMinSize="2048" 
                           noCompressionUserAgents="gozilla, traviata" 
                           compressableMimeType="text/html,text/xml"
        -->

    <!-- Define a SSL Coyote HTTP/1.1 Connector on port 8443 -->
    <!--
    <Connector port="8443" 
               maxThreads="150" minSpareThreads="25"
maxSpareThreads="75"
               enableLookups="false" disableUploadTimeout="true"
               acceptCount="100" debug="0" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" />
    -->

    <!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" 
               enableLookups="false" redirectPort="8443" debug="99"
               protocol="AJP/1.3" />

    <!-- Define a Proxied HTTP/1.1 Connector on port 8082 -->
    <!-- See proxy documentation for more information about using this.
-->
    <!--
    <Connector port="8082" 
               maxThreads="150" minSpareThreads="25"
maxSpareThreads="75"
               enableLookups="false"
               acceptCount="100" debug="0" connectionTimeout="20000"
               proxyPort="80" disableUploadTimeout="true" />
    -->

    <!-- 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). -->

    <!-- You should set jvmRoute to support load-balancing via JK/JK2 ie
:
    <Engine name="Standalone" defaultHost="localhost" debug="0"
jvmRoute="jvm1">         
    --> 
         
    <!-- Define the top level container in our container hierarchy -->
    <Engine name="Catalina" defaultHost="localhost" debug="0">

      <!-- The request dumper valve dumps useful debugging information
about
           the request headers and cookies that were received, and the
response
           headers and cookies that were sent, for all requests received
by
           this instance of Tomcat.  If you care only about requests to
a
           particular virtual host, or a particular application, nest
this
           element inside the corresponding <Host> or <Context> entry
instead.

           For a similar mechanism that is portable to all Servlet 2.4
           containers, check out the "RequestDumperFilter" Filter in the
           example application (the source for this filter may be found
in
           "$CATALINA_HOME/webapps/examples/WEB-INF/classes/filters").

           Request dumping is disabled by default.  Uncomment the
following
           element to enable it. -->
      <!--
      <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
      -->

      <!-- Global logger unless overridden at lower levels -->
      <Logger className="org.apache.catalina.logger.FileLogger"
              prefix="catalina_log." suffix=".txt"
              timestamp="true"/>

      <!-- Because this Realm is here, an instance will be shared
globally -->

      <!-- 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"
                 debug="0" resourceName="UserDatabase"/>

      <!-- Comment out the old realm but leave here for now in case we
           need to go back quickly -->
      <!--
      <Realm className="org.apache.catalina.realm.MemoryRealm" />
      -->

      <!-- Replace the above Realm with one of the following to get a
Realm
           stored in a database and accessed via JDBC -->

      <!--
      <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
             driverName="org.gjt.mm.mysql.Driver"
          connectionURL="jdbc:mysql://localhost/authority"
         connectionName="test" connectionPassword="test"
              userTable="users" userNameCol="user_name"
userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
      -->

      <!--
      <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
             driverName="oracle.jdbc.driver.OracleDriver"
          connectionURL="jdbc:oracle:thin:@ntserver:1521:ORCL"
         connectionName="scott" connectionPassword="tiger"
              userTable="users" userNameCol="user_name"
userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
      -->

      <!--
      <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
             driverName="sun.jdbc.odbc.JdbcOdbcDriver"
          connectionURL="jdbc:odbc:CATALINA"
              userTable="users" userNameCol="user_name"
userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
      -->

      <!-- Define the default virtual host
           Note: XML Schema validation will not work with Xerces 2.2.
       -->
      <Host name="localhost" debug="0" appBase="webapps"
       unpackWARs="true" autoDeploy="true"
       xmlValidation="false" xmlNamespaceAware="false">

        <!-- Defines a cluster for this node,
             By defining this element, means that every manager will be
changed.
             So when running a cluster, only make sure that you have
webapps in there
             that need to be clustered and remove the other ones.
             A cluster has the following parameters:

             className = the fully qualified name of the cluster class

             name = a descriptive name for your cluster, can be anything

             debug = the debug level, higher means more output

             mcastAddr = the multicast address, has to be the same for
all the nodes

             mcastPort = the multicast port, has to be the same for all
the nodes
             
             mcastBindAddr = bind the multicast socket to a specific
address
             
             mcastTTL = the multicast TTL if you want to limit your
broadcast
             
             mcastSoTimeout = the multicast readtimeout 

             mcastFrequency = the number of milliseconds in between
sending a "I'm alive" heartbeat

             mcastDropTime = the number a milliseconds before a node is
considered "dead" if no heartbeat is received

             tcpThreadCount = the number of threads to handle incoming
replication requests, optimal would be the same amount of threads as
nodes 

             tcpListenAddress = the listen address (bind address) for
TCP cluster request on this host, 
                                in case of multiple ethernet cards.
                                auto means that address becomes
 
InetAddress.getLocalHost().getHostAddress()

             tcpListenPort = the tcp listen port

             tcpSelectorTimeout = the timeout (ms) for the
Selector.select() method in case the OS
                                  has a wakup bug in java.nio. Set to 0
for no timeout

             printToScreen = true means that managers will also print to
std.out

             expireSessionsOnShutdown = true means that 

             useDirtyFlag = true means that we only replicate a session
after setAttribute,removeAttribute has been called.
                            false means to replicate the session after
each request.
                            false means that replication would work for
the following piece of code:
                            <%
                            HashMap map =
(HashMap)session.getAttribute("map");
                            map.put("key","value");
                            %>
             replicationMode = can be either 'pooled', 'synchronous' or
'asynchronous'.
                               * Pooled means that the replication
happens using several sockets in a synchronous way. Ie, the data gets
replicated, then the request return. This is the same as the
'synchronous' setting except it uses a pool of sockets, hence it is
multithreaded. This is the fastest and safest configuration. To use
this, also increase the nr of tcp threads that you have dealing with
replication.
                               * Synchronous means that the thread that
executes the request, is also the
                               thread the replicates the data to the
other nodes, and will not return until all
                               nodes have received the information.
                               * Asynchronous means that there is a
specific 'sender' thread for each cluster node,
                               so the request thread will queue the
replication request into a "smart" queue,
                               and then return to the client.
                               The "smart" queue is a queue where when a
session is added to the queue, and the same session
                               already exists in the queue from a
previous request, that session will be replaced
                               in the queue instead of replicating two
requests. This almost never happens, unless there is a 
                               large network delay.
        -->             
        <!--
            When configuring for clustering, you also add in a valve to
catch all the requests
            coming in, at the end of the request, the session may or may
not be replicated.
            A session is replicated if and only if all the conditions
are met:
            1. useDirtyFlag is true or setAttribute or removeAttribute
has been called AND
            2. a session exists (has been created)
            3. the request is not trapped by the "filter" attribute

            The filter attribute is to filter out requests that could
not modify the session,
            hence we don't replicate the session after the end of this
request.
            The filter is negative, ie, anything you put in the filter,
you mean to filter out,
            ie, no replication will be done on requests that match one
of the filters.
            The filter attribute is delimited by ;, so you can't escape
out ; even if you wanted to.

            filter=".*\.gif;.*\.js;" means that we will not replicate
the session after requests with the URI
            ending with .gif and .js are intercepted.
            
            The deployer element can be used to deploy apps cluster
wide.
            Currently the deployment only deploys/undeploys to working
members in the cluster
            so no WARs are copied upons startup of a broken node.
            The deployer watches a directory (watchDir) for WAR files
when watchEnabled="true"
            When a new war file is added the war gets deployed to the
local instance,
            and then deployed to the other instances in the cluster.
            When a war file is deleted from the watchDir the war is
undeployed locally 
            and cluster wide
        -->
        
        <!--
        <Cluster
className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
 
managerClassName="org.apache.catalina.cluster.session.DeltaManager"
                 expireSessionsOnShutdown="false"
                 useDirtyFlag="true">

            <Membership 
 
className="org.apache.catalina.cluster.mcast.McastService"
                mcastAddr="228.0.0.4"
                mcastPort="45564"
                mcastFrequency="500"
                mcastDropTime="3000"/>

            <Receiver 
 
className="org.apache.catalina.cluster.tcp.ReplicationListener"
                tcpListenAddress="auto"
                tcpListenPort="4001"
                tcpSelectorTimeout="100"
                tcpThreadCount="6"/>

            <Sender
 
className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
                replicationMode="pooled"/>

            <Valve
className="org.apache.catalina.cluster.tcp.ReplicationValve"
 
filter=".*\.gif;.*\.js;.*\.jpg;.*\.htm;.*\.html;.*\.txt;"/>
                   
            <Deployer
className="org.apache.catalina.cluster.deploy.FarmWarDeployer"
                      tempDir="/tmp/war-temp/"
                      deployDir="/tmp/war-deploy/"
                      watchDir="/tmp/war-listen/"
                      watchEnabled="false"/>
        </Cluster>
        -->        



        <!-- Normally, users must authenticate themselves to each web
app
             individually.  Uncomment the following entry if you would
like
             a user to be authenticated the first time they encounter a
             resource protected by a security constraint, and then have
that
             user identity maintained across *all* web applications
contained
             in this virtual host. -->
        <!--
        <Valve
className="org.apache.catalina.authenticator.SingleSignOn"
                   debug="0"/>
        -->

        <!-- Access log processes all requests for this virtual host.
By
             default, log files are created in the "logs" directory
relative to
             $CATALINA_HOME.  If you wish, you can specify a different
             directory with the "directory" attribute.  Specify either a
relative
             (to $CATALINA_HOME) or absolute path to the desired
directory.
        -->
        <!--
        <Valve className="org.apache.catalina.valves.AccessLogValve"
                 directory="logs"  prefix="localhost_access_log."
suffix=".txt"
                 pattern="common" resolveHosts="false"/>
        -->

        <!-- Logger shared by all Contexts related to this virtual host.
By
             default (when using FileLogger), log files are created in
the "logs"
             directory relative to $CATALINA_HOME.  If you wish, you can
specify
             a different directory with the "directory" attribute.
Specify either a
             relative (to $CATALINA_HOME) or absolute path to the
desired
             directory.-->
        <Logger className="org.apache.catalina.logger.FileLogger"
                 directory="logs"  prefix="localhost_log." suffix=".txt"
            timestamp="true"/>


      </Host>

    </Engine>

  </Service>

</Server>


---
Chris Covington
IT
Plus One Health Management
75 Maiden Lane Suite 801
NY, NY 10038
646-312-6269
http://www.plusoneactive.com

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