Introducing Service-level Awareness in the Cloud
Author
Summary, in English
Resource allocation in clouds is mostly done assuming hard requirements, applications either receive the requested resources or fail. Given the dynamic nature of workloads, guaranteeing on-demand allocations requires large spare capacity. Hence, one cannot have a system that is both reliable and efficient. To solve this issue, we introduce Service Level (SL) awareness in clouds, assuming applications contain some optional code that can be dynamically deactivated as needed. First, we design a model for such applications and synthesize a controller to decide when to execute the optional code and when to skip it. Then, we propose a Resource Manager (RM) that allocates resources to multiple SL aware applications in a fair manner. We theoretically prove properties of the overall system using control and game theory.
To show the practical applicability, we implemented SL aware versions of RUBiS and RUBBoS with less than 170 lines of code. Experiments show that SL awareness may enable a factor 8 improvement in withstanding flash-crowds or failures. SL awareness opens up more flexibility in cloud resource management, which is why we encourage further research by publishing all source code.
To show the practical applicability, we implemented SL aware versions of RUBiS and RUBBoS with less than 170 lines of code. Experiments show that SL awareness may enable a factor 8 improvement in withstanding flash-crowds or failures. SL awareness opens up more flexibility in cloud resource management, which is why we encourage further research by publishing all source code.
Department/s
Publishing year
2013
Language
English
Publication/Series
Technical Reports TFRT-7641
Full text
- Available as PDF - 286 kB
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Document type
Report
Publisher
Department of Automatic Control, Lund Institute of Technology, Lund University
Topic
- Control Engineering
Keywords
- Design
- Management
- Service Level
- Performance
- Resource Allocation
Status
Published
Research group
- LCCC
ISBN/ISSN/Other
- ISSN: 0280-5316