Christopher Kunz | OGF28 | March 16th, 2010 GDI-Grid: The State of Affairs.

Christopher Kunz | OGF28 | March 16th, 2010

GDI-Grid: The State of Affairs

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Agenda

About GDI-Grid / Project goals Architecture and security State of implementation Open Issues

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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About GDI-Grid

The name… GDI = „Geodateninfrastruktur“ = „spatial data

infrastructure“ Grid = D-Grid, the german national grid initiative

The players… 10 partners from science and industry Partners include lat/lon, ESRI, University of Bonn et al. Project lead: University of Hannover

The funding… Funded by Ministry for Science and Research Funding from 07/07 through 06/10

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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Project goals of GDI-Grid

Optimization of SDI and GIS applications to… satisfy rapidly increasing demand for computing

power improve accessibility of decentralized storage and

compute resources integrate basis technologies of both application

fields …especially Globus Toolkit 4 and OGC Web Services

Enable grid resources to seamlessly process geospatial data development of generic services for … Integration, Fusion, Management, Processing … of geospatial data on the D-Grid infrastructure

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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Our showcase scenarios

Three practical „proof of concept“ scenarios:1.Flood simulation: Predict flooded areas in case of

a natural desaster2.Noise propagation: Assess how road noise

affects living conditions in urban environments3.Evacuation routing: Agent-based simulation of

evacuation from disaster areas

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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The GDI-Grid architecture

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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About security

On the OGC side Proprietary username/password URL parameter Passed to OGC/Grid wrapper service Service acquires Proxy via MyProxy service

On the Grid / Globus side: MyProxy GSI X.509 credentials and proxy credentials VO „gdi-grid“ for authorization

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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Current state of implementation

Infrastructure work complete BPEL-based workflow engine Data management via OGSA-DAI Compute Services via D-Grid cluster

Example workflow from „flood“ scenario Implemented as a demonstrator in 2009

Currently working on example workflow in „noise“ scenario

Currently implementing evacuation simulationChristopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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Job Submission in GDI-Grid

„Job Submission Mediator“ WSRF Web Service Frontend to WS-GRAM Supports job templating for easier batching Supports WS-Notification Monitors job submissions Triggers actions on job status changes

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

Workflow Engine Job SubmissionMediator

Cluster

WS GRAM

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Interoperation with GIS systems

User interaction OGC wrapper service between GIS client and

Grid service

Data input Interface between OGSA-DAI and OWS: SeeGEO OGSA-DAI supports PostGIS databases and

ORACLE Spatial

Data output Output data accessible via WFS / WMS etc.

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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Open Issues

Security for OGC Web Services No specs-conforming authentication available No specs-conforming privacy (TLS)

Proprietary software USB dongles for software DRM don‘t scale well

Business model No pricing (as of yet) available

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010

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Thank you!

Questions? Discussion

Christopher Kunz | State of the GDI-Grid | OGF 28 | March 16th, 2010