1. gLite The EGEE Middleware Distribution
Erwin Laure
EGEE Technical Director
OGF20 May 9, 2007
Manchester, UK

2. gLite Middleware Distribution
LCG-2
prototyping
product
2004
2005
gLite
2006
gLite 3.0
Combines components from different providers
Condor and Globus 2 (via VDT)
LCG
EDG/EGEE
Others
After prototyping phases in 2004 and 2005 convergence with LCG-2 distribution reached in May 2006
gLite 3.0
Focus on providing a deployable MW distribution for EGEE production service
gLite - The EGEE Middleware Distribution

3. Scale of EGEE Production Service
98k jobs/day
gLite - The EGEE Middleware Distribution

4. gLite Grid Middleware Services
Access
CLI
API
Security
Information & Monitoring
Authorization
Auditing
Information & Monitoring
Application
Monitoring
Authentication
Data Management
Workload Management
Metadata Catalog
File & Replica Catalog
Accounting
Job Provenance
Package Manager
Storage Element
Data Movement
Site Proxy
Computing Element
Workload Management
Overview paper
gLite - The EGEE Middleware Distribution

5. Middleware structure
Applications
Applications have access both to Higher-level Grid Services and to Foundation Grid Middleware
Higher-Level Grid Services are supposed to help the users building their computing infrastructure but should not be mandatory
Foundation Grid Middleware will be deployed on the EGEE infrastructure
Must be complete and robust
Should allow interoperation with other major grid infrastructures
Should not assume the use of Higher-Level Grid Services
Higher-Level Grid Services
Workload Management
Replica Management
Visualization
Workflow
Grid Economies
...
Foundation Grid Middleware
Security model and infrastructure
Computing (CE) and Storage Elements (SE)
Accounting
Information and Monitoring
gLite - The EGEE Middleware Distribution

6. Pre-Production Deployment Installation Guide, Release Notes, etc
gLite Process
Directives
Development
External
Software
Software
Error Fixing
Directives
Integration
Certification
Pre-Production
Deployment Packages
Testbed Deployment
Problem
Fail
Production Infrastructure
Pre-Production Deployment
Fail
Integration Tests
Pass
Functional Tests
Pass
Fail
Installation Guide, Release Notes, etc
Scalability Tests
Release
Pass
gLite - The EGEE Middleware Distribution

7. How to contribute/influence
gLite process driven by application and operational requirements
New components added based on their requests and overall importance
RESPECT – Program to collect useful tools that work with gLite
See EGEE application portal:
Under construction
gLite - The EGEE Middleware Distribution

8. Major updates planned gLite 3.1 64bit (AMD) support Debian
VDT 1.6 (including GT4)
Scientific Linux 4
64bit (AMD) support
Debian
gLite - The EGEE Middleware Distribution

9. Details Claudio Grandi – Middleware Re-engineering Leader
Job Management
Security
Accounting
Markus Schulz – Integration and Certification Leader
Data Management
Monitoring
gLite - The EGEE Middleware Distribution