1. EGEE-II INFSO-RI-031688 Enabling Grids for E-sciencE www.eu-egee.org More on gLite: 2 services you have not seen! Mike Mineter

2. EGEE-II INFSO-RI-031688 Enabling Grids for E-sciencE www.eu-egee.org AMGA Metadata Service

3. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 3 Metadata on the GRID Metadata is data about data On the Grid: information about files –Describes files –Locate files based on their metadata

4. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 4 gLibrary Example of entries Collection/gLibrary Entry Names Attributes FileNamePathNameTypeSubmitter 4ffaffc8-26e7-4826-b460-3d5bf08081a4 DedicatoAte.mp3/grid/gilda/calanducciAudioTony Calanducci 00454dca-a269-4b93-8a45-c4012af05600 ardizzonelarocca_is_231005.ppt.gpg/grid/gilda/calanducci/ EGEE EGEEDOCTony Calanducci /gLibrary (continuum) Attributes SubmissionDateEncryptionDescriptionKeywordsCreationDate 2006-01-05 00:00:00falseCanzone delle vibrazioni che ha ricevuto un enorme successo tra i teenagers nel 2003 Vibrazioni2004-02-05 00:00:00 2005-01-05 16:44:22truegLite Information SystemR-GMA, RGMA, BDII, IS2005-10-05 23:40

5. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 5 Further information on AMGA and gLibrary: –http://indico.eu-eela.org/conferenceTimeTable.py?confId=37http://indico.eu-eela.org/conferenceTimeTable.py?confId=37 –(go to day 3 for the AMGA tutorial ) AMGA Web Site http://project-arda-dev.web.cern.ch/project-arda-dev/metadata/

6. EGEE-II INFSO-RI-031688 Enabling Grids for E-sciencE www.eu-egee.org Introduction to R-GMA: Relational Grid Monitoring Architecture

7. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 7 R-GMA There is no central repository!!! There is only a “Virtual Database”. Schema is a list of table definitions: additional tables/schema can be defined by applications Registry is a list of data producers with all its details. Producers publish data. Consumers read data published. VIRTUAL DATABASE TABLE 1, Colum defs TABLE 2, Colum defs TABLE 3, Colum defs TABLE 4, Colum defs SCHEMA TABLE 1,Producer P1 details TABLE 2,Producer P1 details TABLE 2,Producer P2 details TABLE 2,Producer P3 details TABLE 3,Producer P2 details TABLE 3,Producer P1 details TABLE 3,Producer P3 details REGISTRY MEDIATOR P1 P2 P3 C1C2 SQL “CREATE TABLE” SQL “INSERT” SQL “SELECT”

8. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 8 NPM Frameworks: e2emonit Network performance data important: –to detect and resolve network problems. –to intelligently schedule jobs based on network load and reliability. active measurements between end-sites, using tools such as –iperf, –udpmon –ping. PP SP C NM-WG WS https://egee.epcc.ed.ac.uk: 28443/npm-dt/query.jsphttps://egee.epcc.ed.ac.uk: 28443/npm-dt/query.jsp

9. Enabling Grids for E-sciencE EGEE-II INFSO-RI-031688 9 More information R-GMA overview page. –http://www.r-gma.org/http://www.r-gma.org/ R-GMA in EGEE –http://hepunx.rl.ac.uk/egee/jra1-uk/http://hepunx.rl.ac.uk/egee/jra1-uk/ R-GMA command line tool –http://hepunx.rl.ac.uk/egee/jra1-uk/glite-r1/command-line.pdfhttp://hepunx.rl.ac.uk/egee/jra1-uk/glite-r1/command-line.pdf R-GMA Browser Home Page –https://rgmasrv.ct.infn.it:8443/R-GMA/https://rgmasrv.ct.infn.it:8443/R-GMA/