Table of Contents
- 1. Component Overview
- 2. Feature summary
- 3. Summary of Changes in WebMDS
- 4. Bug Fixes
- 5. Known Problems
- 6. Technology dependencies
- 7. Tested platforms
- 8. Backward compatibility summary
- 9. Associated standards for WS MDS WebMDS
- 10. For More Information
WebMDS enables end users to view monitoring information via a standard web browser interface, without installing any additional software on their PC. WebMDS is implemented as a servlet that uses a plugin interface to gather monitoring information (or any other information in XML format) and XSLT transforms, and present the data to the user in a readable form. Web site administrators can customize their own WebMDS deployments by using HTML form options, configuring different plugins to collect data and XSLT transforms, and creating their own plugins and XSLT transforms.
Features new in release 4.2.0:
Other Supported Features
- Extensible plugin interface to support various mechanisms to gather monitoring information and XSLT transforms.
- Plugins to acquire monitoring information via resource property mechanisms.
- Plugin to acquire XSLT transforms by reading from local files.
- Error handling has improved -- error pages now include a summary and not just a Java stack trace.
- The service group summary view now has an option to periodically refresh the display.
- WebMDS now supports optional user-specified Xpath queries.
- WebMDS now supports the use of user-specified namespace mappings with user-specified Xpath queries.
- Entries in the service group summary view are now sorted.
- The service group summary view is now easier to update to support local data types.
The following problems and limitations are known to exist for WS MDS WebMDS at the time of the 4.2.0 release:
WebMDS depends on the following GT components:
- Java WS Core
WebMDS depends on the following 3rd party software:
Tested Platforms for WebMDS:
- The WebMDS server has only been tested with Tomcat version 5.0.28; it has been tested on RedHat Linux (i386) and, to a lesser extent, on Windows XP.
- On the client side, WebMDS should be accessible from any web browser on any platform.
Although the WebMDS server is not officially supported on non-Unix platforms, and no Windows installer exists for WebMDS, it is possible to run WebMDS on Windows. The following instructions describe how to install WebMDS on a Windows platform.
Tomcat and set your
CATALINA_HOMEenvironment variable to the directory into which Tomcat was installed.
- Install the Globus Java WS-Core distribution from the Globus Toolkit download page. Set your
GLOBUS_LOCATIONenvironment variable to the directory into which you installed Globus Java WS-Core
- Check the
ws-mdsdistribution out of the Globus CVS repository, using the
Install the servicegroup package:
wherever\ws-mds\servicegroup\schema ant deploy cd ..\source ant deploy
whereveris the directory into which you checked out the ws-mds sources.
wherever\ws-mds\webmds ant deploy
Create the webmds context file (this tells Tomcat where to find WebMDS):
- Restart Tomcat.
WebMDS can then be configured and used as described in the rest of the documentation: WebMDS.
Protocol changes since GT version 4.0.x:
API changes since GT version 4.0.x:
Exception changes since GT version 4.0.x:
Schema changes since GT version 4.0.x:
- HyperText Transfer Protocol (HTTP)
- HyperText Markup Language (HTML)
- XSL Transformations (XSLT)
- WebMDS is implemented as a Java Servlet
See WebMDS for more information about this component.