* Report on NeSC GIS meeting (Steve Fisher)
o Steve talked about the grid information services meting in UK. R-GMA was
presented and Ben Clifford from Globus presented plans for MDS 2 replacement
in GT3. UDDI does not seem to be currently suitable for grid services usage
but James expects it to be become more relevant in the future. No clear
decisions more a survey of the current situation.
* Security (Linda Cornwall)
o Linda presented the ideas for the extension of security in R-GMA> Details
were quite complex and need clarification. Links with WP2 security tools and
WP1 need to clarified but as much re-use as possible should made to reduce
the effort involved.
* General Grid Monitoring Infrastructure - GAMI (Peter Kacsuk)
o Being considered for application monitoring. Uses low-level TCP sockets
and XDR encoding with direct links which means it has superior performance
to R-GMA. Especially useful for MPI distributed applications. Would like to
integration with R-GAM which should not be any extra work/effort changes for
R-GMA. Will also require some integration Currently there is no security
involved and so can only really be used on a single site. Has performed
tests using GAMI & R-GMA and showed far superior results. The test also
showed that R-GMA looses events under high stress.
o This work came about because GRM & PROVE for parallel jobs were based on
R-GMA but the performance was not considered adequate so they developed GAMI
as an underlying infrastructure. GAMI work has been funded by GridLab
(approx 4 man years) at Sztaki.
o Brian Coghlan said CrossGrid came to the same conclusion that a separate
tool with a different API and different performance requirements is needed
for application monitoring compared to grid information services.
o Provides a similar functionality to NetLogger. It would be interesting to
connect GAMI to NetLogger so layered NetLogger tools could be used.
o Finally moved to discussion of summary and the need for a long running WP
testbed for testing R-GMA. The tests should be made available to other WPs
in EDG as well as LCG and should also pick-up he tests performed by Globus
on R-GMA.
* OGSA-DAI (James Magowan)
o James described OGSA-DAI project which intends to provide distributed
queries to databases in an OGSA environment. No new stuff - rather integrate
existing query languages, data formats etc. into OGSA environment.
o How could this be used in R-GMA? Querying schema database.
Adding/deleting/updating tables in R-GMA could just be transactions on such
as schema database.
Decisions and actions points:
* Clarify plans for introduction of security features in R-GMA minimizing
effort involved my reusing as much as possible WP2 tools.
* Clarify requirements from WP1 for security on R-GMA
* Gather R-GMA tests made by Peter Kacsuk and integrate in R-GMA test-suite
that will be made available EDG/LCG testing groups. Similarly also gather
the R-GMA tests performed by Jennifer Schopf (Globus).
* Setup an R-GMA testing testbed using WP3 resources.
* Sztaki will estimate the required work for the integration of GAMI with
R-GMA and WP1 and work-plan.
