Group 2 Aurora Cain Michael Liu Brian Rozier UNC Charlotte ITCS 4146 Spring 2007

 Extension of Assignment 6 (GridSphere portlet assignment)  Integration of Assignment 4a (Globus – grid service and client)  What: Creating a portlet to access a Globus grid service

 Completion of Assignment 4 ◦ Software: Globus Toolkit, JDK ◦ Knowledge of Grid services, how to deploy, etc.  Completion of current Assignment 6 ◦ (Additional) Software: GridSphere, Tomcat ◦ Knowledge of GridSphere, creating projects, deploying, etc.

1. GridSphere installation and config 2. Create Odd-Even portlet (code provided) 1.Create project 2.Edit deployment descriptor files 3.Compile and deploy 4.Configure GridSphere group and portlet access 3. Create Math (+, -, *, /) portlet 1.Same as Odd-Even, except self-developed

 New: ◦ Tomcat config ◦ Copying new files to appropriate locations  Reuse: ◦ Math service from Assignment 4 ◦ General GridSphere config from Assignment 6

 Globus container uses port 8080 by default  GridSphere (Tomcat container) uses port 8080 by default  Need to change Tomcat default port (in %CATALINA_HOME%\server.xml ): <Connector port="8081" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" />

 Math service files  Tomcat ◦ From GT4Services\build\classes  This is output as part of Assignment 4a  From globus-deploy-gar ◦ To %CATALINA_HOME%\shared\classes  Globus shared libraries (JARs)  Tomcat ◦ From %GLOBUS_LOCATION%\lib ◦ To %CATALINA_HOME%\shared\lib  Do not overwrite any existing JARs

 Create new project for Math client  Edit appropriate deployment descriptor files  Create appropriate code to access portlet  etc. (same steps as original Assignment 6)

 Math service (Globus) ◦ globus-start-container -nosec  Math client portlet (GridSphere) ◦ Run globus-devel-env.bat to configure classpath  Must be done from working directory: %GLOBUS_LOCATION%\etc ◦ Deploy as usual (using ant install ) ◦ Stop and restart Tomcat (if running)

 Login to GridSphere  Add new portlet to demo group (or other group name specified in group.xml )

 Add subtraction functionality to portlet