INFSO-RI Enabling Grids for E-sciencE Information and Monitoring Status and Plans Plzeň, 10 July 2006 Steve Fisher/RAL on behalf of JRA1-UK

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 2 R-GMA R-GMA is now working well –with experienced users Released a bad RPM recently –It had passed certification and time on PPS  Shows that JRA1-UK testing is still inadequate  Should have failed in certification on one of the tests we gave to SA3  Should have shown memory leak in fairly short time on PPS –Had to produce new RPMs with old code –Proper fix now in certification  Has shown up problem with tagging/building Used in various applications

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 3 SD Status In production Developed by Data Management and JRA1-UK within EGEE-I Only BDII plug-in currently configured Many services not correctly advertising Not enough services using the API

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 4 Work-plan Two requirements directly related to the JRA1-UK work. –Security:  #101 - make use of VOMS groups and roles –Information System:  #111 - to provide fast and reliable access to service end points. Work-plan approved a few weeks ago –Subject to a small change

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 5 R-GMA Plans Design has some limitations which are hard to work around. Currently working on a new design which includes –Authz –Multiple VDB (name spaces) –Registry and schema replication –Support for Oracle and other RDBMS. –Easy to wrap as web service

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 6 First release of new design No new functionality in first release Significant changes include: –The registry no longer sends out notifications.  Should increase reliability  Registry replication much simpler –Only one socket for streaming from one machine to another –Regular handling of remote invocation (time-outs etc) –Database independence –Managed tuple stores - essential to support authz –Multiple VDB support but no cross VDB queries Compatibility with previous releases –APIs must be able to work with old and new services –Services must be able to interoperate

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 7 Subsequent releases Will provide in this sequence: 1.Queries over multiple VDBs –Almost standard SQL –Extension for Unions 2.Authz by VDB –This will make use of certificate attributes (VOMS groups/roles) –Database engine is used to implement parameterised views 3.Registry replication –Much easier now that registry is passive 4.Schema replication –Still to be designed – may not be easy 5.Oracle support –DB independence part of new design

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 8 Service Discovery (SD) Plans We will work on more responsive SD by invoking the plug-ins in parallel. –The fastest plug-in wins We are asked to support use of scripts calling utilities which use SD –Should utility do caching or the SD API?  SD solution has to be general so heavier  How many utilities to consider? “Configuration-free” SD being developed –Useful as a bootstrap mechanism  it can locate the R-GMA server on the local subnet.

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 9 Time scales Hard to estimate: –Considerable effort can be "lost" in support. –JRA1-UK has a temporary but critical shortage of manpower.  4 resignations from the team in 3 months  Interviewing this week We had hoped to achieve by the end of this year: –queries over multiple VDBs and authz (using VOMS attributes) by VDB –R-GMA clients with the option of automatic configuration –SD caching or persuade utility providers to do it –Parallel invocation of SD plugins

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 10 Mailing lists 3 lists: –R-GMA-ANNOUNCE  Low volume for R-GMA announcements to users  Moderated  Replies go to JRA1-UK list –JRA1-UK  “Public” JRA1-UK list –R-GMA-SA1  Similar to JRA1-UK but includes SA1 people  Created for discussing SA1 applications – e.g. GridView To subscribe to any of these lists: –

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 11 QAG and Quality We have partner metrics to worry about in future –They were missed off the template this Q I have produced the JRA1 Q And Measurement Plan –Strongly based on the EGEE-I doc from Alberto di M.  Removed SA3 material  Tried to make it realistic –Contents:  Standards Programming guidelines Test guidelines  Processes Adherence to the EGEE developers guide Software Quality Reviews Code reviews and walk-throughs Documentation reviews Metric Monitoring  Metrics  Tools

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 12 INFOD-WG of OGF (was GGF) Base specification –With the GGF editor  Should go to public comment in about a week –Packaged as an extension to WSN Use Case document still needs work to make it match –No intention to publish it however 2 Sessions at next GGF –Base spec comments –Next steps  Hope to link it properly to R-GMA

Enabling Grids for E-sciencE INFSO-RI Steve Fisher/RAL 13 For more information… EGEE Web pages: