Time and Cost Aware Checkpointing of Choreographed Web Services

被引:0
作者
Atluri, Vani Vathsala [1 ]
Mohanty, Hrushikesha
机构
[1] CVR Coll Engn, Hyderabad, Andhra Pradesh, India
来源
DISTRIBUTED COMPUTING AND INTERNET TECHNOLOGY, ICDCIT 2015 | 2015年 / 8956卷
关键词
Web services; choreography; checkpointing; QoS;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Complex business processes can be realized by composing two or more web services into a composite web service. Due to the widespread reachability of Internet, more and more web services are becoming available to the consumers. Quality aware consumers look for resilience in services provisioned on Internet. This paper proposes message logging based checkpointing and recovery for web services to make them resilient to faults. It presents an algorithm that checkpoints services participating in a choreography in such a way that the execution time and cost of service constraints are always met. It identifies checkpoint locations by considering the costs involved in checkpointing, message logging and replaying for service recovery. The cost estimation is carried out using service interaction patterns and QoS values of the services involved. Performance of the proposed checkpointing strategy is corroborated with the results obtained from experiments.
引用
收藏
页码:207 / 219
页数:13
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