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CERN
openlab Phase I - opencluster: SmartFrog
SmartFrog (Smart Framework for Object
Groups) is a technology for describing distributed software
systems as collections of cooperating components, and then
activating and managing them. It was developed by HP Labs in
Bristol (UK) and is released under LGPL. For more
information visit the SmartFrog
homepage. In 2004 two
students worked with us on SmartFrog components. One of the
projects resulted in an implementation of the Service
Location Protocol in SmartFrog (see the
reports
section).
openlab SmartFrog distribution
We provide rpms containing SmartFrog
here. The dev rpm contains the whole SmartFrog
distribution including source code. The dist rpm contains a
SmartFrog distribution which is configured to run as a
daemon. It contains an init script to start/stop the
SmartFrog daemon. You should use the latest SmartFrog
release:
SmartFrog-3.08.004-dev.noarch.rpm,
SmartFrog-3.08.004-dist.noarch.rpm.
openlab SmartFrog components
In an ongoing project we develop SmartFrog components and
make them available. They address issues encountered when
trying to (un)install software on Linux clusters:
downloading of files, installation of rpms, manipulation of
"key-value" as well as xml configuration files (e.g.
adding/removing an entry to /etc/services), distribution of
SSH keys. The current release is 1.0. Have a look at the
documentation (pdf)
to get an impression what you can do with these components.
As an application we show how to use SmartFrog to install,
configure and uninstall a PBS/Torque cluster. Another
example illustrates how distribute SSH keys.
Downloads for release 1.0
sfOpenlabTools need serveral external classes which can be
found in the ext/ directory in CVS:
Java Secure
Channel,
Jakarta
commons io,
xerces-j.
To check out the whole sfOpenlabTools tree from CVS
export
CVSROOT=:pserver:anonymous@isscvs.cern.ch:/local/reps/openlab
then do cvs co -r rel-1-0 SmartFrog
Access to the
openlab CVS repository via a web interface.
For more information contact Andreas Unterkircher or Xavier
Grehant at CERN.
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