Speaker
Description
Provide a set of generic keywords that define your contribution (e.g. Data Management, Workflows, High Energy Physics)
Grid Data Management service, Data Access and Integration Service, P2P Architecture, GRelC Portal
1. Short overview
The GRelC Data Access and Integration Service (GRelC DAIS) aims at transparently and securely integrating heterogeneous, distributed and geographically spread grid data sources (through P2P connected GRelC DAIS nodes) decoupling routing aspects from data access and so defining a very general and robust grid data integration architecture.
It is WS-I based, GSI and VOMS enabled, compatible with Globus and gLite grid middleware/environments, and it represents the evolution of the GRelC DAS.
URL for further information:
www.grelc.unile.it
https://grid.ct.infn.it/twiki/bin/view/GILDA/GRelCPortal
If demonstration is requested please explain what visual or interactive aspects of the contribution necessitate a demonstration rather than a presentation or poster?
Demonstration is requested. The demo will show how the GRelC DAIS successfully provides a data access and integration service for gLite. We will demonstrate how distributed DB integration, distributed accounting and monitoring can easily be performed by using the GRelC Portal (web interface). A live demo can really showcase how effective is the proposed solution, how efficient is the service w.r.t. query response time and how easily can be managing distributed (and heterogeneous) data sources.
4. Conclusions / Future plans
The GRelC DAIS is very versatile so it can be used both at VO and site level. It can/was used in both ways depending on VO/user/database constraints and requirements. There is no single point of failure and no centralized management for this service due to the scalable P2P architecture. This service is currently successfully deployed and positively evaluated by end-users and sysadmins on the GILDA t-Infrastructure. It is part of the GILDA release and will be included within the INFNGRID release.
3. Impact
The GRelC DAIS service is the extended and improved evolution of the GRelC DAS, it allows managing grid databases (relational, XML, flat-files) containing data/metadata carrying out data access and integration activities. gLite does not provide services so widely addressing these issues even though accounting, monitoring, database access and integration is really important for end-users/VO (astrophysics, bioinformatics, ES community, etc.). Supporting GSI/VOMS security model for authentication and authorization, this service can be naturally integrated within the gLite farm model together with CE and SE. Moreover, the GRelC DAIS provides Glue Schema extensions for the BDII to ease database discovery and publishing. Client side can be part of the UI (i.e. GILDA UI). For end-users the GRelC DAIS Portal allows managing and querying via web distributed data sources (very easy and attractive for end users). Submission through broker is also supported and SLC3 & SLC4 releases are available.
