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Internet of Things (IoT) services are increasingly deployed at the edge to access and control Things. The execution of such services needs to be monitored to provide information for security, service contract, and system operation management. Although different techniques have been proposed for deploying and executing IoT services in IoT gateways and edge servers, there is a lack of generic policy...
A new energy-proportional computing model extends Barroso and Hölzle's original definition for fixed-resource systems to aid in the design of more efficient modern systems with reconfigurable resources that can be varied at runtime.
Application Performance Monitoring (APM) is crucial to any enterprise to ensure that the performance of its application or service is meeting the service level agreements. There is an inherent need for the APM of traditional networks to evolve, with the advances in the internet technologies. In this paper, we present a novel approach and framework for realizing a futuristic APM for Software Defined...
Data provenance has been an active area of research as a means to standardize how the origin of data, process event history, and what or who was responsible for influencing results is explained. The common trend in capturing provenance is to collect all possible information, and then attempt to extract relevant information from the entire collection, which is not efficient especially at runtime. Unless...
Although definition of single-program benchmarks is relatively straight-forward—a benchmark is a program plus a specific input—definition of multi-program benchmarks is more complex. Each program may have a different runtime and they may have different interactions depending on how they align with each other. While prior work has focused on sampling multiprogram benchmarks, little attention has been...
Service-oriented software consists of middleware, such as application servers and runtime engines, into which service applications are deployed. This middleware is often complex and difficult to install. The deployment of services requires the crafting of deployment descriptors and packaging of applications. As a consequence, the installation of service-oriented software systems can be a daunting...
Power capping on server nodes has become an essential feature in data centers for controlling energy costs and peak power consumption. More than half of the server nodes are virtualized in today's data centers; thus, providing a practical power capping technique for consolidated virtual environments is a significant research problem. This paper proposes a power capping technique, vCap, which makes...
Web applications and server environments hosting them rely on configuration settings that influence their security, usability, and performance. Misconfiguration results in severe security vulnerabilities. Recent trends show that misconfiguration is among the top critical risks in web applications. While effective at uncovering numerous classes of vulnerabilities, generic web application vulnerability...
Virtualization technology enables various application services to be distributed and encapsulated within virtual machines (VMs), which are dynamically allocated to physical machines (PMs) in cloud computing environments. However, in many existing virtualized systems, the limited network bandwidth often becomes a bottleneck resource, leading to the intensification of network competition and the performance...
MapReduce has gained in popularity as a distributed data analysis paradigm, particularly in the cloud, where MapReduce jobs are run on virtual clusters. The provisioning of MapReduce jobs in the cloud is an important problem for optimizing several user as well as provider-side metrics, such as runtime, cost, throughput, energy, and load. In this paper, we present an intelligent provisioning framework...
Cloud computing, a paradigm shift that offer computing resources in a pay-as-you-go manner, is expected to minimize service operators' cost without sacrificing the performance of services. However, it is much harder to guarantee the performance of cloud applications due to the complex architecture of cloud, the interaction between co-deployed applications and the unpredictability of workload. Some...
IT infrastructures just needs to work and at the same time adapt to changing requirements. A significant amount of their downtime is caused by configuration errors and because all other subsystems depend on the network, network errors there have a big impact. Configuration errors are often caused by parameters that are inconsistent because changing one parameter often requires updating multiple other...
In this paper, we propose a new algorithm for job interchange in Computational Grids that consist of autonomous and equitable HPC sites, called Shaking-G. Originally developed for balancing the sharing of video files in P2P networks, we conceptually transfer and adapt the algorithm to the domain of job scheduling in Grids, building an integrated, load-adaptive two-tier job exchange strategy. We evaluate...
Unplanned system outages have a negative impact on company revenues and image. While the last decades have seen a lot of efforts from industry and academia to avoid them, they still happen and their impact is increasing. According to many studies, one of the most important causes of these outages is software aging. Software aging phenomena refers to the accumulation of errors, usually provoking resource...
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