Formulating Cost-Effective Monitoring Strategies for

Service-based Systems

Abstract

Service-based systems (SBSs) that are built through dynamic composition of

component services must be monitored in order to guarantee the response time of the SBSs.

However, monitoring consumes resources and very often impacts the quality of the SBSs

being monitored. Hence, monitoring incurs resource cost and system cost, which need to be

considered in formulating monitoring strategies for SBSs. The critical path of a composite

SBS, which is of particular importance in cost-effective monitoring, is probabilistic in

volatile operating environments. It is important to estimate the criticalities of different

execution paths when deciding which parts of the SBS to monitor. Furthermore, cost-

effective monitoring also requires management of the trade-off between the benefit and

cost of monitoring. In this paper, we propose CriMon, a novel approach to formulating

monitoring strategies for SBSs. CriMon first calculates the criticalities of the execution

paths of an SBS and then, based on those criticalities, generates locally or globally optimal

monitoring strategy considering both the benefit and cost of monitoring. In-lab

experimental results demonstrate that in volatile environments the response time of an SBS

can be managed cost-effectively through CriMon-based monitoring. The effectiveness and

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efficiency of the two monitoring strategy formulation methods are evaluated and

compared.

Existing system:

Service-based systems (SBSs) that are built through dynamic composition of

component services must be monitored in order to guarantee the response time of the SBSs.

However, monitoring consumes resources and very often impacts the quality of the SBSs

being monitored. Hence, monitoring incurs resource cost and system cost, which need to be

considered in formulating monitoring strategies for SBSs. The critical path of a composite

SBS, which is of particular importance in cost-effective monitoring, is probabilistic in

volatile operating environments. It is important to estimate the criticalities of different

execution paths when deciding which parts of the SBS to monitor. Furthermore, cost-

effective monitoring also requires management of the trade-off between the benefit and

cost of monitoring.

Proposed system:

In this paper, we propose CriMon, a novel approach to formulating monitoring

strategies for SBSs. CriMon first calculates the criticalities of the execution paths of an SBS

and then, based on those criticalities, generates locally or globally optimal monitoring

strategy considering both the benefit and cost of monitoring. In-lab experimental results

demonstrate that in volatile environments the response time of an SBS can be managed

cost-effectively through CriMon-based monitoring. The effectiveness and efficiency of the

two monitoring strategy formulation methods are evaluated and compared.

SYSTEM CONFIGURATION:-

HARDWARE CONFIGURATION:-

Processor - Pentium –IV Speed - 1.1 Ghz

RAM - 256 MB(min)

Hard Disk - 20 GB

Key Board - Standard Windows Keyboard

Mouse - Two or Three Button Mouse

Monitor - SVGA

SOFTWARE CONFIGURATION:-

Operating System : Windows XP

Programming Language : JAVA

Java Version : JDK 1.6 & above.