Virtual machine cluster mobility in inter-cloud platforms

Abstract

Modern cloud computing applications developed from different interoperable services that are interfacing with each other in a loose coupling approach. This work proposes the concept of the Virtual Machine (VM) cluster migration, meaning that services could be migrated to various clouds based on different constraints such as computational resources and better economical offerings. Since cloud services are instantiated as VMs, an application can be seen as a cluster of VMs that integrate its functionality. We focus on the VM cluster migration by exploring a more sophisticated method with regards to VM network configurations. In particular, networks are hard to managed because their internal setup is changed after a migration, and this is related with the configuration parameters during the re-instantiation to the new cloud platform. To address such issue, we introduce a Software Defined Networking (SDN) service that breaks the problem of network configuration into tractable pieces and involves virtual bridges instead of references to static endpoints. The architecture is modular, it is based on the SDN OpenFlow protocol and allows VMs to be paired in cluster groups that communicate with each other independently of the cloud platform that are deployed. The experimental analysis demonstrates migrations of VM clusters and provides a detailed discussion of service performance for different cases.

An Analysis on Virtual Machine Migration Issues and Challenges in Cloud Computing

“…In addition, cloud providers have to comply with the service level agreements (SLAs) that have been agreed upon with the customers or users. To maintain and/or improve the SLAs, researchers have proposed virtual machine (VM) migration technologies [3,4]. When there are failures or faults in the datacenter, we can migrate VMs to improve the reliability of the datacenter.…”

“…A focus on VM cluster migration based on SDN(Software Define Networking) architecture to reduce static end points and allow dynamic connectivity of VMs and focus on migration of VM clusters among clouds without losing network connection [3].…”

Adaptive Microservice Scaling for Elastic Applications

“…In this work we work towards these challenges, and we focus on developing an autoscaling system for microservice architectures. In the general case, an auto-scaling system would respond to current ("reactive") or predicted ("proactive") changes in workload or resource utilisation by adding or removing applications instances ("horizontal scaling") or computing resources like CPU cores ("vertical scaling") as required to meet the SLAs [6], [12], [13]. For example, "reactive" threshold-based rules are the most commonly deployed solution by Cloud Service Providers (CSPs) like AWS, Azure and Google Cloud.…”

A novel trust evaluation protocol with privacy protection for intercloud using holomorphic encryption

“…The European Network and Information Security Agency (ENISA) and European Commission (EC) have perceived the merchant lock-in issue as a perhaps the best snag to big business cloud selection [5] . The audits of existing writing [6][7][8][9][10][11][12] have demonstrated that past investigations have concentrated more on interoperability and movability issues of distributed computing when lock-in is talked about. Among numerous issues being talked about are: the absence of standard interfaces and open APIs [13] , the absence of open models for VM group [14] and administration organization interfaces [15] , just as absence of open configurations for information trade.…”