Web Services in the Real World

Web Services in the Real World
AfkhamAzeez – WSO2 Inc.
EranChinthaka – Indiana University

Agenda
Academic Use-cases
EranChinthaka
Industry Use-cases
AfkhamAzeez

Academic Usage

LEAD – Linked Environment for Atmospheric Discovery
Rain and
Snow
Fog
Rain and
Snow
Snow and
Freezing Rain
Intense
Turbulence
Severe
Thunderstorms

“Optimal” Weather Prediction Using Dynamic Adaptivity
Storms Forming
Forecast Model
Streaming
Observations
Data Mining
Instrument Steering
Refine forecast grid
On-Demand
Grid Computing

Flexibility with SOA Architecture
Workflow graph
Application
services
Compute Engine
User Portal
Workflow
Engine
Fault
Tolerance
& scheduler
Event Notification Bus
Portal
server
MyLEAD
Agent
service
Data
Management
Service
Data
Catalog
service
Providence
Collection
service
MyLEAD User
Metadata
catalog
Data Storage

Sigiri : Efficient Job Submission to Large-scale systems
Goals
Customized and robust submission of jobs
Reliable Monitoring
EranChinthaka, Suresh Marru, Beth Plale School of Informatics and Computing,
Indiana University, Bloomington, Indiana.

Walakulu – Framework for Interacting with Multiple Cloud Environments
EranChinthaka, Suresh Marru, Beth Plale School of Informatics and Computing,
Indiana University, Bloomington, Indiana.

Reusable eScience Software Stack
Open Grid Computing Environments project led by Indiana University adopts software components from domain specific Science Gateways and generalizes/hardens/tests and releases them to the gateway community at large.
E-Science Community has adopted Axis2 as the default Web Service Framework.
With the inspiration and experience with axis2, OGCE project is pursuing to submit a ASF incubator proposal to collaborate, develop and maintain Scientific workflow tool suite.

Industry Usage

1. Dynamic Routing + Auditing
Traffic directed to different endpoints during the day
Routing to different endpoints based on the config
Optimizing resource allocation
All service requests/responses should be logged for auditing purposes
Switching configurations should be seamless

1. Dynamic Routing + Auditing

2. Push and Pull
Reconcile data between two systems periodically

2. Push and Pull

3. MDM & EDA
Multiple customized IT management systems
Different formats for data representation in these systems

3. MDM & EDA

3. MDM & EDA
Adaptor Layer
Axis2 used for hosting adaptor services which talk to backend (BE) systems
Publishes events when changes occur in the BE systems
Publishes & subscribes to specific G-message events
Converts GBOs into ASBOs
Integration Server
Acts as the event broker.
Transforms events into a generic format
Manages subscriptions
Logic Server
Manages the master data repository
Takes care of the feedback problem
Registry
Used for storing topics, subscriptions, policies

4. Validation + Protocol Bridging
All service requests coming in should be validated & scanned for viruses
Actual services should be exposed only via certain transports

4. Protocol Bridging

5. External Authentication

6. External Authorization

7. Auto-scaling
Service deployment should be auto-scaled
Scaled up when load increases
Scaled down when the load decreases

7. Auto-scaling

8. Cloud Gateway
Some of the services within the corporate network need to be made available on the cloud

8. Cloud Gateway

Questions

Thank You

Web Services in the Real World

by Eran Withana on Nov 05, 2009

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