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OGSA-DAI Status ReportNeil P Chue Hong

20th May 2005

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Summary

Software and Support Applications and Collaborations Dissemination and Training Workplan and Roadmap

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OGSA-DAI Release 6

A release to consolidate multiple platforms– Released on May 19th 2005

Features:– New Client Toolkit which provides abstractions across flavours– Renaming (consistent naming across platform versions)– Ability to enforce control flow constraints (ordering activities)– Refactored Exception Framework– Service Configuration– Improvements to installers– Extend test framework to multi-platform tests– Updated documentation structure to reflect flavours

OGSA-DAI [OGSI-6.0 | WSI-1.0 | WSRF-1.0]

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OGSA-DAI R5.0 downloads

China40%

United Kingdom15%

United States11%

Germany3%

Japan5%

Italy2%

France3%

Austria1%

Others20%

OGSA-DAI Downloads R5

790 downloads since Dec 04-Actual user downloads not search engine crawlers-Does not include downloads as part of GT3.2 and GT4 releases

Total of 1212 registered users

R1.0 (Jan 03) 109R1.5 (Feb 03) 110R2.0 (Apr 03) 255R2.5 (Jun 03) 294R3.0 (Jul 03) 792R3.1 (Feb 04) 686R4.0 (May 04) 1083Total 4119

at 17/5/2005

Significant interest from China- two members of staff starting May 22nd

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Queries

67 queries received between 1/2/2005 and 30/04/2005.– 22.3 queries/month (previous quarter was 18.3 queries/month)– Time to resolution 3.3 days (was 8.3 days last quarter)

Grid Support Centre effort finished on 30/9/2004– now spending approximately 10.5 staff days effort a month within

developer team

Category Queries

Install / Configure 20

Usage 23

Documentation 0

Website 0

DQP 10

General 14

Release Queries

Pre R4.0 0

R4.x 14

R5.x 17

DQP2.0 9

WSRF/WSI preview 3

Not specified/applic 24

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OMII_2 Release

50 downloads of OMII versions from website so far (pre Release 6)

OGSA-DAI WSI-1.0 will get a customised OMII bundle– there have been some issues as OMII1_2 and OGSA-DAI R6 use

different versions of Axis– this should be resolved in the OMII2_0 release– the same feature set as the GT4 version

Still want to use GRIMOIRES registry – To explore its use for data resource & services– Registering service functionality– Registering data content– To avoid doing our own from scratch

Expecting to use WS-Addressing for R7 on OMII_2_x

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GT4 WS-RF Release

Moving from contributed component to core component in Globus Toolkit 4.0– Released service only release with GT4.0– Releasing full OGSA-DAI WSRF-1.0 package with GT4.0.1

Almost all features from OGSA-DAI OGSI r6.0 for GT4.0.1– registry not being actively developed (awaiting alternatives)– no factory, making concurrency more difficult (to be fixed in

R7)– security: switch from MLS to TLS in GT4

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Applications and Collaborations

caBIG– collaboration continues– have also made contact with Peter Maccallum of UK

CancerGrid project

NGS– working with Matt Ford to understand how to promote Data

Services on the NGS– ConvertGrid the first project using OGSA-DAI on NGS

Exploring other opportunities– EDINA, map services– Reading eScience Centre, Met Office data – Sybase, support for new databases

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Training and Dissemination

Tutorials:– GlobusWorld, Boston– GGF13, Seoul– UK Globus Week, NeSC– Forthcoming International Grid Summer School, Vico Equense

Many presentations including:– PRISM– Introduction to the NGS– PPARC eScience Postgraduate School

Papers:– “The design and implementation of Grid database services in OGSA-DAI “,

Concurrency and Computation: Practice and Experience, Volume 17, Issue 2-4 , Pages 357 – 376, Feb 2005.

– "Introduction to OGSA-DAI Services" Lecture Notes in Computer Science, LNCS Vol. 3458, pp. 1-12, Springer, 2005.

– Two papers accepted from team at AHM • Architecture and Status + Benchmarking

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More dissemination

UG Meeting– June 1st at NeSC– Panel of five projects– Participants from three continents

UK Projects Meeting– July 18th at IBM South Bank– Give an introduction to OGSA-DAI, OMII and NGS

First DIALOGUE workshop– August 1st – 2nd at Columbus, Ohio– follow on meetings between projects– bringing together data integration projects– Second workshop November at NeSC

AHM Workshop on Data Integration– 7 papers accepted

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Release 7

Features:– Recommended registry with Client Toolkit support– Security (WS-RF, Authorisation interface)– Sessions and Transactions support– Seamless Multiplatform Client Toolkit– Integration of DQP– Data Service Concurrency– New OGSA-DAI Engine design– Provide DAIS Spec implementations

Additionally, potential to prototype some of:– DFDL– Extended support for Data Integration– Extended support for Files (e.g. Datacutter)– XQuery– OO Data Resources

Expected release in September 2005

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Research Team

NESC:– Detailed design, prototyping and evaluation of updated OGSA-

DAI architecture, including functionality enhancements.• Concurrency, sessions, Tx, monitoring, naming and data transport

– User support/outreach/training.– Schema integration & XML technologies from Q4 05 onwards – Performance evaluation

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Architecture v2

A fresh look at the architecture of OGSA-DAI– Performance analysis– Provision of additional features– Integration of security– Provision of better integrated tooling and developer support– Better integration with other data services– Extensions to provide

• monitoring • dynamic management• dynamic configuration

Ongoing meetings to discuss– Architecture Paper accepted for All Hands Meeting– Leaving architecture in good stead for future work– Stabilising developer interfaces (especially Activity API) BEFORE R7