1. Client-Server Paradise ICOM 8015 Distributed Databases

2. Problems Earth Science Application generate massive amounts data –GIS Feature –Satellite Images, Maps –Temperature, Wind Speed Want to store, search or disseminate these data sets. –Internet

3. Sample Schema & Queries Images(week integer, band integer, region Rectangle, data Image) SELECT week, band FROM Images WHERE region overlaps BOX; SELECT week, band, Clip(data, region, BOX) FROM Image WHERE energy(data) > 10293.2

4. Issues Efficient Storage of Images Support for Image Processing algorithms and other operations. Support for spatial queries –Need spatial Indexing Reduce communications cost Execute operations in Parallel

5. Issues Image Visualization: –Composites and multilayers

6. State of the Art OS: –Store all data in OS files. DBMS –Store all data on DBMS Hybrid –Scalar and Spatial Data in a DBMS –Images on File System

7. Paradise Store data on a client-server parallel DBMS –SHORE storage System Storage, buffer management, transactions, etc. –Paradise Server Optimizer, Execution Engine, Catalog Manager, ADTs –Paradise Client Caching, GUI, ADTs

8. Paradise Client Map View – multi layer display Layer Manager – logic to control Map View Browser – Management of data sets, and how should they be displayed. Composer – Create ad-hoc queries Local Executor – Ship queries, local processing, cache control Object – Cache the tuples in an external format. Meta Cache – caching catalog information.

9. SHORE Storage Manager for OO and Relational DBMS Support parallel access to disks, or tertiary storage. –Disk arrays, RAID –Tape Robots Supports transactions, recovery, and indexing. Can be used as a toolkit to build a DBMS on top of it

10. Parallel Execution Multiple Paradise Servers can be used to run a query. Paradise Server Paradise Server Paradise Server Paradise Server LAN Paradise Client

11. Image Processing in Parallel Paradise Server Paradise Server Paradise Server Paradise Server Apply some Algorithm To an image

12. User-defined Types Support for GIS types such as lines, rectangle, polygons, etc. System can grow since new types can be added Need to provide operations to read, write, data from files, memory, disk.