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

2. LCG-2 gLite 2004 prototyping prototyping product 2005 product 2006 gLite 3.0 gLite Middleware Distribution • 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 providinga deployable MW distribution for EGEE production service gLite - The EGEE Middleware Distribution

3. 98k jobs/day Scale of EGEE Production Service 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 MetadataCatalog File & ReplicaCatalog JobProvenance PackageManager Accounting StorageElement DataMovement ComputingElement WorkloadManagement Site Proxy Overview paper http://doc.cern.ch//archive/electronic/egee/tr/egee-tr-2006-001.pdf gLite - The EGEE Middleware Distribution

5. Middleware structure • 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 Applications 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. gLite Process Directives Development External Software Error Fixing Software 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: http://egeena4.lal.in2p3.fr/index.php • Under construction gLite - The EGEE Middleware Distribution

8. Major updates planned • gLite 3.1 • 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