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Status of Globus activities

Detailed overview of INFN Globus activities including deployment, security, resource management, data access, fault monitoring, and more. Information on completed tasks, ongoing projects, and future plans provided.

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Status of Globus activities

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  1. Status ofGlobus activities Massimo Sgaravatto INFN Padova for the INFN Globus group globus@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 Francesco’s 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-GRID/Globus • Documents • Minutes • Presentations • Mailing list: globus@infn.it • Archive of mailing list

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