Services Grids:
Current Activity & Requirements
Steven Newhouse, David Berry
Malcolm Atkinson, Savas P.
Services Everywhere
•
Service Set 1: Compute Services
– Sam Meder, GT4 GRAM
– Steven McGough, WS-JDML
•
Service Set 2: Data Services
– Neil Chue Hong, OGSA-DAI
– Alexander Woehrer, DataMiner
– Alan Gray, Eldas
•
Service Set 3: Registry Services
– Mark Baker, GMA as an event service
– Abdeslem Djaoui, EGEE services for Information and Monitoring
– Peter Kunszt: EGEE Catalogs
•
Service Set 4: Deployment and Dependability Services (part1)
– Steve Loughran, CDDLM
– Glen Dobson, Endpoint Services
•
Service Set 5: Reservation and Economic Services
– Steven McGough, ICENI Scheduler, Performance, Launcher, Reservation
– William Lee, Economic Services
Output!
• The ‘customer’ perspective:
– Requirements and Services: The Application Point of View,
Jennifer Schopf
• The focus during the workshop:
– Survey the current activity in delivering Grid capabilities within
Service Oriented Architectures.
– Examine the services required to support applied e-Science
projects.
– Identify commonalities between different service interfaces and
their schemas.
– Compare & contrast current services with those proposed within
OGSA-WG
– Examine the user-level API's needed to interact with the core
services (to inform SAGA-WG)
The Cake
TOOLS
APPLICATIONS
API
User Level
API
API
Client
Service Binding
API
Service
Implementation
Client
Service Binding
API
Service
Implementation
Duplication Analysis
• Areas:
– Data (DB, Files)
– Computation (GRAM, Economics, WS-JDML, Scheduling)
– Information (Naming, Registry, Replica Catalogues)
• Focus:
– Take OGSA Architecture document & talks
• Where do things agree/disagree?
– Look at specs being used
• What is being used? Beyond WS-I?
– APIs: User functionality & service interface
• SAGA
Infrastructure
• Security
– Mechanisms
– Delegation of Rights – whats required.
• Tracking
– Callbacks
– Error propagation
– Monitoring (& Heartbeat & Health Monitoring)