1. Design and Implementation of a Service
Monitoring Console within a Service
Oriented Architecture Framework
Zeroth Review
19-Jan-2012
Arvind Krishnaa J
Final Year, CSE ‘A’, 31508104017
Guided by
Dr. Chitra Babu,
HOD/CSE

2. Service Oriented Architecture
• Exposes an operation or a
Service resource of some use
Provider • Service contract specified
through WSDL
Provider
• A repository of service listings
Directory • Dynamically searchable
Client-Server Interaction
• Finds a service contract from
the directory
Consumer • Requests the service provider
for an utility.

3. eBay’s SOA Framework
Develop a Service
or Client using
eBay’s Eclipse IDE
If it’s a service register
it with the Asset
Repository
If it’s a client, search in
AR for the service it
calls, by looking up
WSDL
MetricsQueryService
monitors service
metrics

4. Service Provider and Service
Invoker Frameworks
Pluggable data
formats through
Serialization
factory
Service Provider Framework Service Invoker Framework

5. SOA Metrics Console (SMC)
Application Servers log events
through TIBCO messages
GUI built using
in-house V4 CAL : Centralized Application
framework. Logging framework
All CAL logs aggregated, and
OLAP cubes are constructed
OLAP2db
Interface
Cube data pushed onto relational
database using OLAP2db scripts

6. Turmeric Monitoring Console
1. Deployed as a .war file
in local server.
2. Monitors
services/consumers
created using Turmeric
SOA plugin.
3. eBay’s CAL APIs log
the metrics of services in
the bundled MySQL
database.
4. GUI built using Google
Web Toolkit (GWT)

7. SMC vs. TMC
SMC Dashboard Turmeric Monitoring Console
1. Several 1. Data loss 1. Built on the 1. Only raw
operations which (~60%) highly scalable metrics are
derive useful happening at and browser reported.
inferences from OLAP2db layer. independent 2. As of now, no
metrics. GWT facility to scale
2. V4 framework.
2. Highly technology it up to
customizable getting outdated 2. Faster enterprise level.
reports. rapidly. response time 3. Monitors only
3. Metrics stored from the UI services running
3. Unacceptable layer.
in enterprise slow page load on local server.
OLAP cubes. 3. OPEN
time.
SOURCE!

8. Objectives
1. Investigate the exact reasons for the data loss at the
OLAP2db interface, and fine-tune or rewrite the scripts
entirely.
2. Quantitative analysis between the merits of TMC and
SMC.
3. If TMC is chosen, then the feature set of SMC needs to be
mapped, and then implemented completely in TMC.
4. If SMC is preferred, then in addition to minimizing data
loss, the response time of the dashboard needs to be
improved.
5. Other persistence storage mechanisms, such as the
distributed Cassandra NoSQL database to be explored.

9. Features and Functionality
Core Functionality Performance Scalability Reliability
• Monitoring the • Average response • Performance does • Continuous
metrics of time of the front- not degrade availability of the
services, such as end should be irrespective of the service (expect to
call count, error within 2-3 number of metric maintain the
count, response seconds. logged. current
time and • UI designed using • Capacity to availability, which
consumer traffic. a stable and handle any type is around 99.94%)
• Store the metrics scalable of load, across • Metrics displayed
efficiently on a framework. several pools are real-time and
distributed (groups of accurate, with
persistent machines). minimum or no
storage. data loss.

10. Scope and Goal
Tune OLAP2db Create a service and a Quantitatively assert
scripts to consumer using the which alternative is
minimize data SOA plugin, and better? – To continue with
analyze its metrics SMC or integrate TMC
loss
Add missing features of
Tune SMC’s V4 Presentation SMC to TMC, including
Layer to decrease load time an alternate storage
mechanism
Come up with the design of an
optimized monitoring console for
any SOA framework

11. Project Timeline
Project Timeline
Final Report Preparation
One-to-one feature mapping of TMC to SMC, with
improvements if needed
Enhance SMC to improve performance
(or)
Expand TMC code to log more metrics
Feasibiltiy study of TMC vs SMC
Tuning of OLAP2db scripts
Duration (in weeks)
Study of OLAP2db scripts
Practical comparison of TMC anc SMC
Create a service and consumer
using Turmeric SOA plugin
Analysis of Turmeric Code
0 2 4 6 8 10 12 14 16

12. References and Bibliography
[1] Leonard Richardson, Sam Ruby, “RESTful Web Services”, Second Edition, O’Reilly Media,
2009.
[2] eBay Open Source Project, “Turmeric SOA platform”
http://www.ebayopensource.org/index.php/Turmeric/HomePage
[3] eBay Open Source Project, Documentation of Turmeric SOA platform
https://www.ebayopensource.org/wiki/display/TURMERICDOC110GA/Turmeric+Doc
umentation+Overview
[4] eBay Open Source Project, Turmeric Source Code
http://www.github.com/ebayopensource
[5] Internal eBay documentation
(a) Internal wiki pages
(b) CAL Architecture document
(c) SOA platform Architecture document