Scheduling with freshness and performance guarantees for web applications in the cloud

Zhu, Yingying, Sharaf, Mohamed A. and Zhou, Xiaofang (2011). Scheduling with freshness and performance guarantees for web applications in the cloud. In: 22nd Australasian Database Conference - ADC 2011, Perth, Australia, (). 17-20 January 2011.

Author Zhu, Yingying
Sharaf, Mohamed A.
Zhou, Xiaofang
Title of paper Scheduling with freshness and performance guarantees for web applications in the cloud
Conference name 22nd Australasian Database Conference - ADC 2011
Conference location Perth, Australia
Conference dates 17-20 January 2011
Publication Year 2011
Sub-type Other
Language eng
Abstract/Summary Highly distributed data management platforms (e.g., PNUTS, Dynamo, Cassandra, and BigTable) are rapidly becoming the favorite choice for hosting modern web applications in the cloud. Among other features, these platforms rely on data replication and relaxed consistency to achieve high levels of performance and scalability. However, these design choices often exhibit a trade-off between performance SLA and data currency. In this paper, in addition to performance SLAs, we also perceive an application tolerance to data staleness as another requirement determining the end-user satisfaction and our goal is to strike a fine balance between both the quality of service and quality of data perceived by end-user. Towards that, we propose scheduling policies and mechanisms for efficiently allocating the recourses at each replica node so that to meet the conflicting requirements of user queries and replica updates. Our experimental results show that employing our scheduling schemes for resource allocation can provide significant improvements in the overall system utility when compared to existing policies.
Keyword Web Database
Distributed Database
Scheduling
SLA
Quality of Data
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Sun, 23 Oct 2011, 02:27:51 EST by Dr Mohamed Sharaf on behalf of School of Information Technol and Elec Engineering