Note: these are the notes for PoC release 3; the current release is 3.1
The VL-e Proof-of-Concept software distribution is a collection of tools for e-science on the grid, especially for use in the VL-e project. This collection is composed of open source tools and in-house developments to support the broad range of sciences that VL-e embraces. The PoC distribution is meant both for the grid infrastructure (worker nodes) and for user interface machines, to make sure the same versions of the software are used everywhere.
The PoC distribution can be installed on Red Hat Enterprise
Linux 4 (i386 and x86_64) or compatible systems. It consists of
a collection of RPMs that can be installed with yum.
The following steps cover just about everything you need to do to get a fully operation grid User Interface.
cd /etc/yum.repos.d wget http://poc.vl-e.nl/distribution/3/extra/vle.repo wget http://poc.vl-e.nl/distribution/3/extra/jpackage.repo wget http://poc.vl-e.nl/distribution/3/extra/lcg-CA.repo wget http://poc.vl-e.nl/distribution/3/extra/dag.repo wget http://poc.vl-e.nl/distribution/3/extra/glite-UI.repo yum install vle3-ui yum install lcg-CA yum install glite-UI yum install vle-vo-support
Alternatively, if the objective is not to install a UI, but just the
VL-e middleware (e.g. on a worker node), just add the vle.repo and jpackage.repo files and install the
vle3-wn metapackage. This contains mostly the same
software, but it will skip some of the GUI packages that don't make
sense on worker nodes.
More detailed instructions are given in the Administrator's Guide.
This is PoC Release 3, or R3 for short, released on June 1, 2008.
The PoC distribution has a new major release every 9 to 12 months. Between major releases there are minor updates to fix bugs and security issues.
Notable changes in this release:
The PoC distribution is built and maintained by the VL-e P4 team. Questions about the distribution can be sent to vle-pfour-team@lists.vl-e.nl.
As always, questions regarding the infrastructure go to grid.support@{nikhef,sara}.nl.
Security fixes and bug fixes are irregularly published to the updates section of the repositories. These updates will be announced through the proper VL-e channels.
