third review presentation

Design and Implementation of a ServiceMonitoring Console within a Service Oriented

Architecture Framework

Arvind Krishnaa .J31508104017

Guided By

Dr. Chitra BabuHOD/CSE

SSN College of Engineering

Third Review - 04th April, 2012

Ebay’s SOA Framework

1 Client Runtime - Client application code written by theconsumers of the service. Service InvocationFramework(SIF)

2 Server Runtime - Deployment platform for developers topublish web services. Service Provider Framework (SPF)

3 CodeGen - Generate boiler-plate code for deploying services aswell as their consumers.

Architecture of the SOA framework

Figure 1: Architecture of the SOA framework

Where does services monitoring fit in?

1 Develop a service or a consumer to a service using the EclipseSOA plugin

2 Deploy the service on an application server

3 The service logs the metrics onto the Central ApplicationLogging Framework

4 CAL - an aggregator for critical metrics, acting as the focalpoint for generating custom reports

SOA Metrics Dashboard (SMC)

Figure 2: Overview of SOA Metrics Dashboard

Metrics collection in SMC

Issues in SMC

1 Outdated V4 technology for constructing the GUI

2 Very slow!

3 Code is highly monolithic with several metric parametershard-wired into the code

4 Difficult to develop further, as well as difficult to move it to amore efficient mechanism

Design goals for the services dashboard

1 Monitoring metrics of services in a modular and looselycoupled-manner

2 Fast response time of the UI layer

3 UI design using a scalable framework

4 Ability to handle large number of services

5 Continuous availability of the service

6 Real-time metrics gathering

7 Extensibility over exhaustive features

What is Turmeric? What is TMC?

Turmeric: Part of the eBay SOA framework is open-sourced, andthis environment is called Turmeric

I Services and consumers can be created uing the open-sourceplugin

I Define type libraries, error libraries for re-use acrossapplications

Turmeric Monitoring Console: The open-source equivalent ofSMC

Architecture of the Monitoring Console

1 Can be abstracted to two frameworks running in parallel -metrics logging framework and metrics handler framework

2 Both frameworks are web services deployed on an applicationserver

3 SOA Query Metrics Service (sqms) - Logging logging handlerframework

4 SPFServlet is the main servlet which handles the requests tothe Turmeric runtime.

5 Initializes the metrics logger for logging metrics published byTurmeric services.

6 Monitoring Console (console) - Metrics handler framework

SOA Query Metrics Service (SQMS)

Figure 3: Architecture of SQMS

Look at the future - Services Portal

SOA framework at a good maturity level; it is now necessary tohave a single portal for monitoring several aspects of theframework.

1 Ad-hoc querying: Using the data aggregator script

2 Detailed View: Pre-built reports from ad-hoc queries on themetrics, such as

I Dependent services across multiple levelsI Dependent SQL queriesI The respective pools on which the consumer/service resideI Performance trends of the individual services/URLs hosted on

the given pool in terms of their throughput/hits andresponse-time over a period of time

I System metrics trends (e.g., CPU, memory, garbage collection,errors, and etc.)

Other contributions at eBay

1 SifRouting Web : Determine the physical locations of a logicalURL, displaying details about it like the pool the service isdeployed in, its namespace and so on.

2 Identifying list of services depending on JAXB : Parsing theXML file containing the list of projects across all pools, andexamining each project individually

3 Determining Service URLs for services from invokerconfiguration bean: To enable an unconventionalload-balancing feature

third review presentation

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