AstroGrid Datacenters ESO M Hill (ROE), Aug 2004
AstroGrid Remit: Remit: PrototypingPrototyping Produce working Grid, real scienceProduce working Grid, real science Feedback to IVOA on practical issuesFeedback to IVOA on practical issues 3 years (18 months development) 3 years (18 months development) Iterative development Iterative development Deploying Itn05 complete Deploying Itn05 complete
AstroGrid Components Portal (UI) Portal (UI) MySpace (secure public storage) MySpace (secure public storage) Registry (discovery) Registry (discovery) Applications (SExtractor etc) Applications (SExtractor etc) Community (accounts, security) Community (accounts, security) Datacenters (PAL) Datacenters (PAL) Workflow (+scripts eg Python?) Workflow (+scripts eg Python?)
PAL ‘Easy to publish to the VO’ ‘Easy to publish to the VO’ Implements VO interfaces: Implements VO interfaces: Home-grown Astrogrid (2 versions)Home-grown Astrogrid (2 versions) NVO-Cone searchNVO-Cone search (extra Simple) SIAP(extra Simple) SIAP CEACEA Prepped for SkyNodePrepped for SkyNode Querier ‘Plugins’ Querier ‘Plugins’
Architecture Datacenter Implementation Slinger Axis Cone SIAP Plugin Manager /XML/CSV zip/plain /file/ftp /myspace AstroGrid CEA SkyNode
Asynchronous Querying Identifying a Query Identifying a Query Keeping it transient: Keeping it transient: No work files/temporary filesNo work files/temporary files All StreamingAll Streaming TargetIndicatorsTargetIndicators Aborting… Aborting… Tricky – depends on implementationTricky – depends on implementation Timeouts Timeouts NoneNone NecessaryNecessary Polling Status Polling Status Callback status (event-driven) Callback status (event-driven) Requires webservice to callRequires webservice to call
Future Deploying to ROEb, Leicester, Cambridge (UK), JBO, ESO. Deploying to ROEb, Leicester, Cambridge (UK), JBO, ESO. SkyNode interface SkyNode interface Metadata wizards Metadata wizards -> Query pages -> Query pages Full SIA, SSA interface Full SIA, SSA interface Comprehensive status Comprehensive status
ESO PAL Tomcat 5, vonc1 Tomcat 5, vonc1 ‘one click’ update ‘one click’ update RDBMS now RDBMS now HOTF plugin later? HOTF plugin later? No MySpace… No MySpace…