Problem working with HttpClusterServlet

Question

hi:
          this is the first time i work with weblogic6.1(NT platform) cluster.
          i config the DefaultWebApp as web application which will proxy requests to
          my cluster which consists of two weblogic server running on the same host
          (http://localhost:7001 and http://localhost:7003).
          my web.xml before is as floowing(before it works as a proxy)
          <?xml version="1.0" ?>
          <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
          1.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
          <web-app>
          <welcome-file-list>
          <welcome-file>index.html</welcome-file>
          </welcome-file-list>
          </web-app>
          but when i modify it as following as a proxy to my cluster
          <?xml version="1.0" ?>
          <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
          1.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
          <web-app>
          <welcome-file-list>
          <welcome-file>index.html</welcome-file>
          </welcome-file-list>
          <servlet>
          <servlet-name>HttpClusterServlet</servlet-name>
          <servlet-class>
          weblogic.servlet.internal.HttpClusterServlet
          </servlet-class>
          <init-param>
          <param-name>defaultServers</param-name>
          <param-value>
          bea:7003:7004
          </param-value>
          </init-param>
          </servlet>
          <servlet-mapping>
          <servlet-name>HttpClusterServlet</servlet-name>
          <url-pattern>/</url-pattern>
          </servlet-mapping>
          <servlet-mapping>
          <servlet-name>HttpClusterServlet</servlet-name>
          <url-pattern>*.jsp</url-pattern>
          </servlet-mapping>
          <servlet-mapping>
          <servlet-name>HttpClusterServlet</servlet-name>
          <url-pattern>*.htm</url-pattern>
          </servlet-mapping>
          <servlet-mapping>
          <servlet-name>HttpClusterServlet</servlet-name>
          <url-pattern>*.html</url-pattern>
          </servlet-mapping>
          <init-param>
          <param-name>DebugConfigInfo</param-name>
          <param-value>ON</param-value>
          </init-param>
          </web-app>
          there's no response anymore , no error .
          there's little docs available and i need your help
          regards
          

Answer 1

Hi.
          A couple of suggestions:
          1. Clusters must use the same port number. If you are running a cluster on a
          single machine this means that your machine must be multihomed and each member
          of the cluster must bind to a unique IP address. Your other alternative is to
          use multiple machines. I don't believe your configuration will work for a
          cluster.
          2. you don't have yoru default servers listed correctly in your web.xml
          file. To specify 2 different servers you need to specify each server
          separated by a '|' character as follows:
          myserver1:70017001|myserver2:7001:7002 The second port number is for SSL
          communications. In your xml file you are only specifying a single server.
          Hope this helps,
          Michael
          daniel wang wrote:
          > hi:
          > this is the first time i work with weblogic6.1(NT platform) cluster.
          > i config the DefaultWebApp as web application which will proxy requests to
          > my cluster which consists of two weblogic server running on the same host
          > (http://localhost:7001 and http://localhost:7003).
          >
          > my web.xml before is as floowing(before it works as a proxy)
          >
          > <?xml version="1.0" ?>
          > <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
          > 1.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
          > <web-app>
          > <welcome-file-list>
          > <welcome-file>index.html</welcome-file>
          > </welcome-file-list>
          >
          > </web-app>
          >
          > but when i modify it as following as a proxy to my cluster
          >
          > <?xml version="1.0" ?>
          > <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application
          > 1.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
          > <web-app>
          > <welcome-file-list>
          > <welcome-file>index.html</welcome-file>
          > </welcome-file-list>
          > <servlet>
          > <servlet-name>HttpClusterServlet</servlet-name>
          > <servlet-class>
          > weblogic.servlet.internal.HttpClusterServlet
          > </servlet-class>
          >
          > <init-param>
          > <param-name>defaultServers</param-name>
          > <param-value>
          > bea:7003:7004
          > </param-value>
          > </init-param>
          >
          > </servlet>
          >
          > <servlet-mapping>
          > <servlet-name>HttpClusterServlet</servlet-name>
          > <url-pattern>/</url-pattern>
          > </servlet-mapping>
          >
          > <servlet-mapping>
          > <servlet-name>HttpClusterServlet</servlet-name>
          > <url-pattern>*.jsp</url-pattern>
          > </servlet-mapping>
          >
          > <servlet-mapping>
          > <servlet-name>HttpClusterServlet</servlet-name>
          > <url-pattern>*.htm</url-pattern>
          > </servlet-mapping>
          >
          > <servlet-mapping>
          > <servlet-name>HttpClusterServlet</servlet-name>
          > <url-pattern>*.html</url-pattern>
          > </servlet-mapping>
          > <init-param>
          > <param-name>DebugConfigInfo</param-name>
          > <param-value>ON</param-value>
          > </init-param>
          >
          > </web-app>
          >
          > there's no response anymore , no error .
          >
          > there's little docs available and i need your help
          >
          > regards
          Michael Young
          Developer Relations Engineer
          BEA Support