Design and Implementation of Pessimistic Commit Protocols in Mobile Environments

Moiz, Salman Abdul; Rajamani, Lakshmi; Pal, Supriya N.

doi:10.1007/978-3-642-14478-3_61

Cited by 2 publications

(3 citation statements)

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“…Further a Real Time optimistic Commit protocols with a conflict resolution strategy is presented in [9]. The Design & Implementation of Pessimistic Commit protocols is described in [10]. The design and implementation of the optimistic commit protocol is presented in this chapter.…”

Section: Related Workmentioning

confidence: 99%

“…These approaches may be selected based on the business logic of the mobile application. The design and implementation of pessimistic commit protocols was presented in [10].…”

Section: Pessimistic Commit Protocolsmentioning

confidence: 99%

“…Mobile computing is widely used in many applications such as mobile banking, traffic status, weather forecasting, etc., [10,5]. In order to provide these services, required information is retrieved from database server via a wireless channel and is passed on to the mobile hosts.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Commit Protocols in Mobile Environments: Design & Implementation

Moiz¹,

Rajamani²,

Pal³

2010

IJDMS

Self Cite

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In any database environment either wired or wireless, if multiple host access similar data items it may lead to concurrent access anomalies. As disconnections and mobility are the common characteristics in mobile environment, preserving consistency in presence of concurrent access is a challenging issue. Most of the approaches use locking mechanisms to achieve concurrency control. This leads to increase in blocking and abort rate in mobile environments. However the dynamic timer adjustment strategies may use locking mechanism to efficiently implement concurrency control. To reduce deadlocks and blocking of resources an enhanced optimistic approach for concurrency control is proposed. To show the effectiveness of the commit protocols in mobile environments, a simulator is designed and implemented to demonstrate how the transactions are committed and how the data consistency is maintained when the transactions are executed concurrently. The simulator was tested for both pessimistic and optimistic approaches.

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Section: Related Workmentioning

confidence: 99%

“…These approaches may be selected based on the business logic of the mobile application. The design and implementation of pessimistic commit protocols was presented in [10].…”

Section: Pessimistic Commit Protocolsmentioning

confidence: 99%