NDLI: Nonblocking Scheduling for Web Service Transactions

Content Provider	IEEE Xplore Digital Library
Author	Alrifai, Mohammad Balke, Wolf-Tilo Dolog, Peter Nejdl, Wolfgang
Copyright Year	2007
Abstract	For improved flexibility and concurrent usage existing transaction management models for Web services relax the isolation property of Web service-based transactions. Correctness of the concurrent execution then has to be ensured by commit order-preserving transaction schedulers. However, local schedulers of service providers typically do take into account neither time constraints for committing the whole transaction, nor the individual services' constraints when scheduling decisions are made. This often leads to an unnecessary blocking of transactions by (possibly long-running) others. In this paper, we propose a novel nonblocking scheduling mechanism that is used prior to the actual service invocations. Its aim is to reach an agreement between the client and all participating providers on what transaction processing times have to be expected, accepted, and guaranteed. This enables service consumers to find a set of best suited providers fitting their deadlines. Service providers on the other hand can benefit from the proposed mechanism due to the now possible intelligent scheduling of service invocations for best throughput. In fact, our experiments show a significant improvement in terms of overall throughput, service chain completions and resources' utilization.
Starting Page	213
Ending Page	222
File Size	427638
Page Count	10
File Format	PDF
ISBN	9780769530444
DOI	10.1109/ECOWS.2007.15
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-26
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Web services Time factors Throughput Conference management Processor scheduling Computer science Database systems Protocols Scheduling algorithm Timing
Content Type	Text
Resource Type	Article

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