ServiceOriented Architecture Benchmark

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Service-OrientedArchitecture Benchmark

• Peter Budny
• Georgia Institute of Technology

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Definitions

• Service-oriented architecture (SOA)
• Architecture design pattern
• Loosely-coupled components
• Components export/import services
• Service
• Function
• Available through a programmatic interface
• Request phrased as question
• Response is the answer to the question

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Web Services

• Three meanings
• A collection of standards (SOAP, XML, WSDL, UDDI,
  etc.)
• A design pattern in which an application exports
  a function through a programmatic interface
• An application constructed using (1) or (2)
• Either orthogonal or unrelated to SOA

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Attributes of a SOA

• Descriptive requests, not instructive
• Idempotent requests
• Responses may differ when underlying data or
  resources change, but otherwise must be identical
• Structured responses, not arbitrary data
• An architecture, not a standard

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Motivation

• Want to experiment on SOAs and other complex,
  multi-tier systems
• No suitable testbeds or benchmarks exist

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Inspiration

• Global distribution system (GDS)
• Prices air fares
• Sells tickets on behalf of airlines
• May also handle hotels, car rentals, cruises, etc.

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Inspiration

• Worldspan
• Provides pricing for Delta Air Lines, Northwest
  Airlines, Orbitz, Hotwire, Priceline, and more
• 1500-node farm
• 3 GB domestic data, 13 GB international
• 11.6 million pricing requests/day (average)
• Average response time 2 sec

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Inspiration
Customer
Orbitz
Hotwire
Priceline
delta.com
Worldspan
pricing data
Pricing data consolidator
ticket sales
Delta
Northwest
AirTran
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Inside Worldspan
Mainframe (load balancer)
Queue
Queue
Queue
IBM MQ

QN
QN
Query node
Query process
Query process
cache miss
Shared cache
Database
Cache file server
data update
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Our model

• Start small
• Implement just basic services, add more as needed
• Simplify
• Protect IP, avoid creating a very complex app
• Clean up architecture
• Use open technologies

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Our model
Customer
Travel website
GDS
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Our model
Customer
Load generator
Travel website
Web server
GDS
Load balancer
Query node
QN
QN
DB
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Our model
Customer
Load generator
Travel website
HTTP
Web server
GDS
Load balancer
Query node
QN
QN
DB
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Our model
Customer
Load generator
Travel website
Web server
SOAP
GDS
Load balancer
Query node
QN
QN
DB
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Our model
Customer
Load generator
Travel website
Web server
GDS
Load balancer
JMS/SOAP
Query node
QN
QN
DB
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Expansion

• Internal
• Caches
• Advanced features

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Expansion
Customer
Load generator
Travel website
Web server
GDS
Load balancer
Query node
QN
QN
DB
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Expansion
Customer
Load generator
Travel website
Web server
GDS
Load balancer
Query node
QN
QN
DB
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Expansion
Customer
Load generator
Travel website
Cache
Web server
GDS
Load balancer
Query node
QN
QN
DB
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Expansion
Customer
Load generator
Travel website
Cache
Web server
GDS
Request history
Auto partitioning load balancer
Query node
QN
QN
DB
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Expansion

• Internal
• Caches
• Advanced features
• External
• Real-world services
• Other experimental tools

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Expansion
Customer
Travel website
GDS
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Expansion
Customer
Travel website
GDS
pricing data
Pricing data consolidator
Airline 1
Airline 2
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Expansion
Customer
Travel website
GDS
pricing data
ticket sales
Pricing data consolidator
Airline 1
Airline 2
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Expansion
Customer
Travel website
Java Adventure Builder
GDS
Hotels
pricing data
ticket sales
Pricing data consolidator
Airline 1
Airline 2
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Expansion
Customer
Travel website
Java Adventure Builder
Weather website
GDS
Hotels
pricing data
ticket sales
Pricing data consolidator
Airline 1
Airline 2
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Expansion
Customer
Travel website
Java Adventure Builder
Intel Mash Maker
Weather website
Airline seating database
GDS
Hotels
pricing data
ticket sales
Pricing data consolidator
Airline 1
Airline 2
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Worldspans Contributions

• 1 GB data
• Later will include several update streams for
  longer simulations
• Request traces

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More Information

• Temporary homepage
• http//www.cc.gatech.edu/bigpeteb/soa_benchmark.h
  tml
• Draft white paper available

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Questions?