Autonomic Vertical Elasticity of Docker Containers with ElasticDocker

May 24 2017

Date: May 2017

Authors:  Yahya Al-Dhuraibi, Fawaz Paraiso,  Nabil Djarallah, Philippe Merle

Publication:Download the paper http://www.occiware.org/bin/download/Share_Publications/WebHome/pdf.png

Abstract: Elasticity is the key feature of cloud computing to scale computing resources according to application workloads timely. In the literature as well as in industrial products, much attention was given to the elasticity of virtual machines, but much less to the elasticity of containers. However, containers are the new trend for packaging and deploying microservices-based applications. Moreover, most of approaches focus on horizontal elasticity, fewer works address vertical elasticity. In this paper, we propose ElasticDocker, the first system powering vertical elasticity of Docker containers autonomously. Based on the well-known IBM's autonomic computing MAPE-K principles, ElasticDocker scales up and down both CPU and memory assigned to each container according to the application workload. As vertical elasticity is limited to the host machine capacity, ElasticDocker does container live migration when there is no enough resources on the hosting machine. Our experiments show that ElasticDocker helps to reduce expenses for container customers, make better resource utilization for container providers, and improve Quality of Experience for application end-users. In addition, based on the observed migration performance metrics, the experiments reveal a high efficient live migration technique. As compared to horizontal elasticity, ElasticDocker outperforms Kubernetes elasticity by 37.63%. 

Conference: 10th IEEE International Conference on Cloud Computing, IEEE CLOUD 2017,


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