WS-GRAM Job Submission Configuration

You must provide the port number (typically 8443) for the WS-GRAM service location in your grid.installation.properties. A valid entry will be formatted like so:

firsthost.testinggrid.com:8443


If you omit the port number for a WS-GRAM service, the service invocation will work the first time only and fail on all subsequent invocations. The error message will be or will contain

Error: org.globus.cog.abstraction.impl.common.task.TaskSubmissionException:
Cannot submit job: ; nested exception is: java.net.ConnectException:
Connection refused

Pom.xml Problem in Condor Portlet

The condor job submission portlet contains a call to an obsolete plugin repository that will cause compilation errors of this portlet. To solve in release version 2.0.4, comment out the plugin section near the top of the ogce2-2.0/ogce-portal/portlets/condor-job-submission2/pom.xml as shown.



<build>
<finalName>condor-job-submission2</finalName>
<plugins>
<!--
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>maven-jetty6-plugin</artifactId>
<configuration>
<scanIntervalSeconds>10</scanIntervalSeconds>
</configuration>
</plugin>
-->
</plugins>
</build>

Sakai JSR 168 Portlet Support

Sakai support for JSR 168 is in the Sakai SVN trunk. For notes on checking it out, compiling, and using it, see http://communitygrids.blogspot.com/2007/03/sakai-jsr-168-tests.html. This will be officially part of the Sakai 2.4 release.

Sakai uses Pluto 1.1 for portlet support. OGCE grid portlet support in Sakai is currently being tested.

See http://www.flickr.com/photos/dr-chuck/420092745/ for a Google Map portlet photo (built with JSF and using the Apache JSF portlet bridge).

OGF 19 Forum Slides

OGCE presentation slides from the Open Grid Forum 19's Software Forum are available below.

• Introduction and Overview Slides by Marlon Pierce (PPT).
  


• Wrapping Scientific Applications as Web Services by Gopi Kandaswamy (PPTX). A PDF version of this is available here.
  

Correction to tar download of version 2.0.4

The file

ogce2-2.0/ogce-portal/portlets/condor-job-submission/project.properties

has a typo that will cause the install script to fail if you do not also install the Maven jar repository. This has been corrected, but we will not immediately increment the version to 2.0.5.

OGCE Maven 1 and 2 Repository URLs

Here are the URLs for OGCE's Maven 1 and Maven 2 repositories:

• Maven 1: http://www.collab-ogce.org/maven/.
• Maven 2: http://www.collab-ogce.org/maven2/.

Interactive Job Submission and GT4

To use the job submission portlet to connect to WS-GRAM, you need to run the portal server on a host machine with a real IP address and verify that $HOME/.globus/cog.properties is set correctly. This can be done by editing ogce2-2.0/projectproperties before building or by hand after the build. This is described in more detail on the OGCE web site's installation instructions.

If this cog.property is not set correctly, you will get the error

org.globus.cog.abstraction.impl.common.task.TaskSubmissionException: Cannot
submit job: No client transport named 'https' found!

GCE 06 Papers and Presentations Available

GCE 06 papers and presentations are available for download from http://www.cogkit.org/GCE06/GCE06/Program.html.

OGCE SourceForge SVN

The old CVS repository has been replaced with SVN, hosted by SourceForge for simplicity.

The SVN repository may be browsed at http://ogce.svn.sourceforge.net/viewvc/ogce/.

SVN clients can use the URL https://svn.sourceforge.net/svnroot/ogce/. This is divided into the usual trunk, tag, and branches subdirectories. The current 2.0.4 version is available under the tag

To check out the trunk (current) version, use the command "svn co https://svn.sourceforge.net/svnroot/ogce/trunk ogce-trunk". This will put the code in a local directory called ogce-trunk.

Write permission is currently only available for project members.

The nominal OGCE SourceForge project page is here. However, we are not currently using other SourceForge features (particularly mailing lists), although this may
change. For mailing list and bugzilla info, see http://www.collab-ogce.org/ogce2/contact.html.

GCE 06 Photos

Photos of the GCE 06 Workshop in Tampa are available from
http://156.56.94.167/~kihuffma/photos/GCE06/index.html, courtesy of Kia Huffman.

GridFTP Portlet Download Bugs and Workarounds

• The GridFTP portlet does not have the "emptySessionPath" variable set for the SSL/HTTPS connector in the server.xml file. This will cause downloads to fail. The solution is simple and is described in detail in the "Post-Installation Steps" section of http://www.collab-ogce.org/nmi/ogce2-docs/installing.html. You just need to add the attribute emptySessionPath="true" to the HTTPS connector. This has been corrected in the CVS.



• Firefox 2 will attempt to open downloaded files (which use target="_blank") in new tabs rather than in new windows. You will get a popup prompt asking you to save the file, but the "save" button will be disabled. To work around this, right click file download link.



• TeraGrid GridFTP servers that are listed in the ogce2-2.0.4 download's grid.installation.properties default values are using an older version of GridFTP. This has no effect on remote file browsing but will cause downloads to fail. Select "GT 3.2 or earlier" instead of the default "GT4" in the selection box when connecting to these servers.
  
  

OGCE Portal 2.0.4 Available

The OGCE portal release 2.0.4 is available from http://www.collab-ogce.org/ogce2/ogce2-2.0-download.html. Prominent updates include

• OGCE is now configured and tested to work with sample TeraGrid GRAM, GridFTP, and GPIR services out of the box. You can still also use OGCE Grid portlets with your own Globus installation.


• Condor portlets completely rewritten to work with Condor 6.8.


• PURSe Portlets added to the main build process.


• PBS submission bug fixed in the batch job submission portlet


• Gridsphere version updated to 2.1.5. This is our preferred version for stability and scalability.

GCE06 Program Announced

The program for GCE06 in Tampa is available from http://www.cogkit.org/GCE06/GCE06/Program.html.

Condor 6.8 Portlet Test Download

We've updated the Condor portlet to work with Condor 6.8. A trial version of this is available here. To use it, you need to have previously installed version of GridSphere 2.1.5. Other versions of GridSphere should work, although gridsphere-ui-tags.jar may need to be updated.

This portlet points to a Collector on our Condor testbed. If you want to point to your own version of Condor, you need to enable the Birdbath web services. Notes on how to do this are available from here. See also the CICC Project Wiki notes.

TeraGrid Booth Schedule

TeraGrid's Booth Schedule is available from here

GCE 06 Accepted Papers Announced

The list of accepted papers for GCE06 is available from http://www.cogkit.org/GCE06/GCE06/Program.html

OGCE Demos at Supercomputing 2006

The following are SC06 Demos and Presentations by OGCE members. See us also at GCE06.

• Monday, November 13




• 7:30-8:00 PM - Eric Roberts, TACC,
  ericrobe@tacc.utexas.edu, "TeraGrid User Portal: A Web Interface for
  TeraGrid User Information & Services"
  


• 7:40-8:20 PM - Dennis Gannon, Indiana University Booth, "The LEAD Portal"
  




• Tuesday, November 14




• Tuesday, November 14 - 10:00-11:00 AM - Marlon Pierce, Indiana University Booth
  "The OGCE Portal for Big Red"
  


• 11-noon - Eric Roberts, TACC,
  ericrobe@tacc.utexas.edu, TeraGrid User Portal: A Web Interface for
  TeraGrid User Information & Services
  


• 3:00-4:00 PM - Dennis Gannon, Indiana University Booth
  "The LEAD Portal"
  


• 3:00-4:00 PM - Gregor von Laszewski, University of Chicago and Argonne National Laboratory, gregor@mcs,anl,gov, Workflow solutions for the TeraGrid with application to water thread management.
  




• Wednesday, November 15




• 1:00-2:00 PM - Dennis Gannon, Indiana University Booth
  "The LEAD Portal"


• TeraGrid Booth #223, 4-5 PM
  Mary Thomas, San Diego State University, mthomas@sciences.sdsu.edu,
  'Connecting Campuses to the TeraGrid: The SDSU Computational Sciences and Cyberinfrastructure (CSCR) Grid Project."
  

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