Terracotta

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== Terracotta and Resin ==
 
== Terracotta and Resin ==
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 +
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'''WARNING: THE FOLLOWING IS INCOMPLETE AND IN PROGRESS!'''
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<ol>
 
<ol>
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<li>Download Terracotta from http://www.terracotta.org</li>
 
<li>Download Terracotta from http://www.terracotta.org</li>
 
<li>Unzip Terracotta</li>
 
<li>Unzip Terracotta</li>
 +
<li>Create the Mule webapp directory structure:
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<pre>mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/lib/
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mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/
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</pre>
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</li>
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<li>Create the configuration file <code>/usr/local/share/resin/webapps/mule/WEB-INF/resin-web.xml</code>
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<pre><?xml version="1.0" encoding="UTF-8"?>
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<web-app xmlns="http://caucho.com/ns/resin">
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  <servlet servlet-name="hello-servlet"
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          servlet-class="example.HelloWorldServlet"/>
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  <servlet-mapping url-pattern="/*" servlet-name="hello-servlet"/>
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</web-app>
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</pre>
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</li>
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<li>Create the configuration file <code>/usr/local/share/resin/tc-config.xml</code>
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<pre><?xml version="1.0" encoding="UTF-8"?>
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<tc:tc-config xmlns:tc="http://www.terracotta.org/config">
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  <clients>
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    <dso>
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      <debugging>
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        <instrumentation-logging>
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          <class>true</class>
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          <hierarchy>true</hierarchy>
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          <locks>true</locks>
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          <transient-root>true</transient-root>
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          <roots>true</roots>
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          <distributed-methods>true</distributed-methods>
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        </instrumentation-logging>
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        <runtime-logging>
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          <lock-debug>true</lock-debug> 
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          <field-change-debug>true</field-change-debug> 
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          <wait-notify-debug>true</wait-notify-debug>
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          <distributed-method-debug>true</distributed-method-debug>
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          <new-object-debug>true</new-object-debug>
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        </runtime-logging>
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      </debugging>
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    </dso>
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  </clients>
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  <application>
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    <dso>
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      <roots>
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        <root>
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          <field-name>example.HelloWorldServlet._accessTimes</field-name>
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        </root>
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      </roots>
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      <locks>
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        <autolock>
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          <method-expression>* example.HelloWorldServlet*.*(..)</method-expression>
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          <lock-level>write</lock-level>
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        </autolock>
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      </locks>
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      <instrumented-classes>
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        <include><class-expression>example..*</class-expression></include>
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      </instrumented-classes>
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      <additional-boot-jar-classes>
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        <include>java.util.TimeZone</include>
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        <include>sun.util.calendar.ZoneInfo</include>
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      </additional-boot-jar-classes>
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    </dso>
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  </application>
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</tc:tc-config>
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</pre></li>
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<li>Create the HelloWorld Servlet <code>/usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/HelloWorldServlet.java</code>
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<pre>package example;
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import java.io.*;
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import java.text.*;
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import java.util.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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public class HelloWorldServlet extends HttpServlet {
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  // this is the variable that Terracotta will distribute
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  private ArrayList<Calendar> _accessTimes = new ArrayList<Calendar>();
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 +
  @Override
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  public void doGet(HttpServletRequest req, HttpServletResponse resp)
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    throws ServletException, IOException
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  {
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    Calendar now = Calendar.getInstance();
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 +
    synchronized(_accessTimes) {
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      _accessTimes.add((Calendar) now.clone());
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      DateFormat format = new SimpleDateFormat("yyyy.MM.dd G 'at' HH:mm:ss z");
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      resp.setContentType("text/html");
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      PrintWriter out = resp.getWriter();
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      out.println("<html>");
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      out.println("<body>");
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      for (Calendar calendar : _accessTimes) {
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        out.println("<br/>" + format.format(calendar.getTime()));
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      }
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      out.println("</body>");
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      out.println("</html>");
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    }
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  }
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}</pre>
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</li>
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<li>Create two copies of resin.conf, with different ports for the server and http.  Add these lines to both versions of resin.conf
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<pre>
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<jvm-arg>-Dcom.sun.management.jmxremote</jvm-arg>
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<jvm-arg>-Xbootclasspath/p:<path-to-terracotta>/lib/dso-boot/<dso-boot-jar></jvm-arg>
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<jvm-arg>-Dtc.install-root=<path-to-terracotta></jvm-arg>
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<jvm-arg>-Dtc.config=localhost:9510</jvm-arg>
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</pre>
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</li>
 +
<li>Invoke two Resin instances, using the two different resin.confs</li>
 
</ol>
 
</ol>

Revision as of 02:26, 18 February 2008

Terracotta and Resin

WARNING: THE FOLLOWING IS INCOMPLETE AND IN PROGRESS!


  1. Download Resin from http://www.caucho.com/download
  2. Unzip Resin into /usr/local/share/resin
  3. Download Terracotta from http://www.terracotta.org
  4. Unzip Terracotta
  5. Create the Mule webapp directory structure: 
    mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/lib/
mkdir -p /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/
  6. Create the configuration file /usr/local/share/resin/webapps/mule/WEB-INF/resin-web.xml 
    <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://caucho.com/ns/resin">
  <servlet servlet-name="hello-servlet"
           servlet-class="example.HelloWorldServlet"/>

  <servlet-mapping url-pattern="/*" servlet-name="hello-servlet"/>
</web-app>
  7. Create the configuration file /usr/local/share/resin/tc-config.xml 
    <?xml version="1.0" encoding="UTF-8"?>
<tc:tc-config xmlns:tc="http://www.terracotta.org/config">
  <clients>
    <dso>
       <debugging>
        <instrumentation-logging>
          <class>true</class>
          <hierarchy>true</hierarchy>
          <locks>true</locks>
          <transient-root>true</transient-root>
          <roots>true</roots>
          <distributed-methods>true</distributed-methods>
        </instrumentation-logging>
        <runtime-logging>
          <lock-debug>true</lock-debug>  
          <field-change-debug>true</field-change-debug>  
          <wait-notify-debug>true</wait-notify-debug>
          <distributed-method-debug>true</distributed-method-debug>
          <new-object-debug>true</new-object-debug>
        </runtime-logging>
      </debugging>
    </dso>
  </clients>

  <application>
    <dso>
      <roots>
        <root>
          <field-name>example.HelloWorldServlet._accessTimes</field-name>
        </root>
      </roots>
      <locks>
        <autolock>
          <method-expression>* example.HelloWorldServlet*.*(..)</method-expression>
          <lock-level>write</lock-level>
        </autolock>
      </locks>
      <instrumented-classes>
        <include><class-expression>example..*</class-expression></include>
      </instrumented-classes>
      <additional-boot-jar-classes>
        <include>java.util.TimeZone</include>
        <include>sun.util.calendar.ZoneInfo</include>
       </additional-boot-jar-classes>
    </dso>
  </application>
</tc:tc-config>
  8. Create the HelloWorld Servlet /usr/local/share/resin/webapps/terracotta/WEB-INF/classes/example/HelloWorldServlet.java 
    package example;

import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class HelloWorldServlet extends HttpServlet {
  // this is the variable that Terracotta will distribute
  private ArrayList<Calendar> _accessTimes = new ArrayList<Calendar>();

  @Override
  public void doGet(HttpServletRequest req, HttpServletResponse resp)
    throws ServletException, IOException
  {
    Calendar now = Calendar.getInstance();

    synchronized(_accessTimes) {
      _accessTimes.add((Calendar) now.clone());
      DateFormat format = new SimpleDateFormat("yyyy.MM.dd G 'at' HH:mm:ss z");

      resp.setContentType("text/html");

      PrintWriter out = resp.getWriter();

      out.println("<html>");
      out.println("<body>");

      for (Calendar calendar : _accessTimes) {
        out.println("<br/>" + format.format(calendar.getTime()));
      }

      out.println("</body>");
      out.println("</html>");
    }
  }
}
  9. Create two copies of resin.conf, with different ports for the server and http. Add these lines to both versions of resin.conf 
    <jvm-arg>-Dcom.sun.management.jmxremote</jvm-arg>
<jvm-arg>-Xbootclasspath/p:<path-to-terracotta>/lib/dso-boot/<dso-boot-jar></jvm-arg>
<jvm-arg>-Dtc.install-root=<path-to-terracotta></jvm-arg>
<jvm-arg>-Dtc.config=localhost:9510</jvm-arg>
  10. Invoke two Resin instances, using the two different resin.confs
Retrieved from "http://wiki3.caucho.com/index.php?title=Terracotta&oldid=2732"
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