Status of Globus activities

1
Status ofGlobus activities

• Massimo Sgaravatto
• INFN Padova
• for the INFN Globus group
• globus_at_infn.it

2
Tasks

• Globus deployment
• Security
• Information Service
• Resource Manager
• Data Access and Migration
• Fault Monitoring
• Execution Environment Management

3
Globus deployment

• Already done
• Installation instructions for Globus 1.1.1 and
  1.1.2
• Modified Globus 1.1.3 software kits (including
  bug fixes) on AFS
• /afs/infn.it/project/infngrid
• Installation instructions for Globus 1.1.3
• Supported OS Linux and Solaris
• 1 GIIS per site
• LSF and Condor as local resource manager systems
• Italian Certification Authority
• Script for post-install operations
• To do
• Tools to enable local administrators to
  quasi-automatically install and deploy Globus
• Next step
• Binary and configuration files available on AFS
  (sw repository)
• Shared read-only NFS Globus install directory on
  each site
• Script for deployment on local resources

4
Security (GSI)

• Already done
• Evaluation of the Globus security architecture
  (see Francescos presentation)
• INFN certification authority able to issue Globus
  certificates
• Script to convert certificates
• To do
• Definition and implementation of relationships
  between Italian CA and other CAs
• Integration of existing applications with GSI
  authentication mechanisms
• Management of groups of users

5
Information Service (GIS)

• Already done
• INFN MDS server (serving Globus 1.1.1 and 1.1.2
  installations)
• Web form for INFN department enrolment (Globus
  1.1.1 and 1.1.2)
• INFN GIIS (serving Globus 1.1.3 installations)
• Configuration instructions for GIIS
• Web interface for browsing
• Preliminary activities on integrating the default
  schema with other info (file system)
• To do
• Tests on performance and scalability
• Definition and implementation of the GIS
  architecture
• Other tools and interfaces for Grid users and
  administrators
• Integration of the default schema with other
  info
• Which info are necessary ???

6
Resource Management (GRAM)

• Already done
• Job submissions on remote resources
• Tests with Condor and LSF as underlying resource
  management system for Globus
• Some bugs found and fixed
• Problems on scalability and fault tolerance
• Preliminary tests with PBS as underlying resource
  management system for Globus
• Evaluation of RSL as uniform language to describe
  resources
• Translation from RSL to the specific resource
  description languages
• Cooperation between GRAM and GIS
• Submission of Condor jobs to Globus resources
  (Condor-G and GlideIn mechanisms)
• To do
• Modification of Globus scripts for LSF (to manage
  clusters)
• Other tests with GRAM in conjunction with local
  resource management systems
• Tests with real applications
• How can we solve the problems on scalability and
  robustness ???

7
Data Management

• Already done
• Preliminary tests with Globus tools for data
  access and transfer in LAN and WAN environments
• To do
• ???
• Evaluation of Gsiftp ???
• Evaluation of Replica management tools ???
• Usage of the Globus tools for data transfer for
  real use-cases (i.e. CMS HLT activities) ???

8
Other tasks

• Fault Monitoring (HBM)
• Evaluation of HBM for fault detection (for
  system and user processes)
• Data collectors (implementing automatic recovery
  mechanisms)
• but the HBM package is not seeing active
  development
• Execution Environment Management (GEM)
• Evaluation of GEM as service for code migration
• but the GEM service now provides only very
  limited capabilities (executable staging)

9
Other info

• Web site http//www.pd.infn.it/sgaravat/INFN-GRI
  D/Globus
• Documents
• Minutes
• Presentations
• Mailing list globus_at_infn.it
• Archive of mailing list