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We study the online load balancing problem for two independent criteria in heterogeneous systems. For convenience, we choose a system of distributed file servers located in a cluster as the scenario, although our work is not limited to it. Every server is assigned upper bounds for its load and storage space. We assume that the heterogeneity of servers is eventually reflected by the difference of these...
A load scheduling algorithm for the virtual server cluster which is suitable for the storage system is proposed to solve the problem of uniform load distribution of the current virtual server cluster, according to the characteristics of the storage system. This method, which analyzes the selection schemes of each index's weight, is based on the real server's state collection feedbacks periodically...
Nowadays cloud computing is the most advanced paradigm promising to show the vision of computing applicability into reality. It provides a versatile and straightforward way to store and retrieve immense information left-out concern the hardware required. Cloud based Storage (CS) incorporates a resource manager, cluster head and server clusters. Inside the resource manager the client's request for...
Many existing issues pertaining to power sector such as-demand response management, theft detection, outage management etc. can be solved efficiently with grid modernization. Out of these, demand response is one such issue which affects the overall grid stability. One way of managing demand response is to balance the load in smart grid (SG). In this paper, a novel scheme for handling the demand response...
Nowadays, the domestic mobile digital library services are facing the problems of high similarity, lacking innovation and inconvenience. In this paper we put forward and develop a mobile library application for smart phones. Based on the traditional library services, we take the users' personal preferences into consideration to provide better book recommendations and novel reading services, thus making...
It is needed to restructure the static internetwork to more flexible networking environment. Today's infrastructure is not able to change according to fast changing requirements of the users. Due to this there is an introduction of Software Defined Networking (SDN) and OpenFlow (OF) architecture in the year 2005 to modify today's static environment to dynamic one. This concept helps to have programmability...
More and more organizations move their data and workload to commercial cloud storage systems. However, the multiplexing and sharing of the resources in a cloud storage system present unpredictable data access latency to tenants, which may make online data-intensive applications unable to satisfy their deadline requirements. Thus, it is important for cloud storage systems to provide deadline guaranteed...
Virtualization is an essential step before a bare-metal data center being ready for commercial usage, because it bridges the foreground interface for cloud tenants and the background resource management on underlying infrastructures. A concept at the heart of the foreground is multi-tenancy, which deals with logical isolation of shared virtual computing, storage, and network resources and provides...
The coexistence of several wireless technologies gives users a wide connectivity choice. However, in this heterogeneous context with the even growth of multimedia data demand and continuous amendments of network conditions, the best network selection represents a crucial issue. In this paper the authors propose a novel Adaptive Real-time Multi-user Access Network Selection (ARMANS) load balancing...
. In this paper, we proposed a new Energy Aware Load-Balancing Architecture (E-Balance) which balances the load across the network and it decreases energy consumption. Foremost of all, we proposed an optimal system model. And so, we figured out our system model by optimization solver. The optimal model had two grave problems: computation complexity and the demand for a global vision of network status...
Process schedulers are part of the core functionality of an operating system (OS), and have been enhanced over the years to account for multiple cores in the processors and to support multi-threaded applications. In this study, we investigate the impact of the Linux scheduler's load-balancing algorithm on the performance of multi-threaded OpenSIPS (an open source SIP proxy server, SPS) running on...
Even though demand response of datacenters recently has received increasing attention due to huge demands and flexible power control knobs, most of current studies focus on the owner-operated datacenters, leaving behind another critical segment of datacenter business: multi-tenant colocation. In colocation datacenters, while there exist multiple tenants who manage their own servers, the colocation...
Disaster Prevention and Mitigation (DPM) is aimed to help people to prevent and reduce property damage in time. In this paper, we propose a DPM system called Gaia, which collects sensed data, and sends them to a back-end DPM Server with improved performance. Gaia is equipped with double 3G interfaces and Load Balancing mechanisms with Round Robin scheduling to ensure stable transmission. Furthermore...
Distributed systems have set of cooperating and independent functional units which enables user to achieve potential parallelism during the execution and fault tolerance. The tasks has to be distributed wisely such that load on each node has to be kept within limits. To achieve this, a special node was assigned as load balancer which manages the load on each node by considering various static and...
Network Function Virtualization (NFV) is utilized to simplfy the deployment and management of constantly evolving and highly complex networking services. In this paper, we propose a dynamic load management framework for IMS networks using NFV, where IMS functions are created within a single virtual machine (VM) instance and moved to the cloud environment. Requests coming from the IMS clients are first...
With the rapid development of the computer techniques, researchers develop more and more application layer protocols to realize new functions. However, traditional reverse proxy servers can't support these new protocols very well because of low extensibility. To solve the problem, we propose an extensible universal reverse proxy architecture which makes reverse proxy server more adaptive to new protocols...
Cloud Computing is one of the fastest growing technologies in present day. Cloud is the metaphor used for internet and cloud computing is sharing pool of resources over internet. Count of users switching to cloud services is increasing day by day, which in turn requires better performance of cloud. One of the major challenges faced in cloud is efficient distribution of resources for serving millions...
In recent years, there has been a rapid growth of interest in dynamic management of resources in virtualized systems. Virtualization provides great flexibility in terms of resource sharing but at the same time it also brings new challenges for load balancing using automatic migrations of virtual machines. In this paper, we have evaluated VMware's Distributed Resource Scheduler (DRS) in a number of...
Buildings and multi-tenant datacenters (MDCs) have been identified as crucial participants for emergency demand response (EDR) which is the last line of defense to avoid cascading failures during emergency events. One important overlooked fact is that the majority of MDCs are physically located in mixed-use buildings (MUBs) and share the electricity supply with other operations (e.g., office spaces)...
The cloud services are shared in one are more customers by pooling in a multitenant environment, which provides virtualized resources to the customer using different technologies. Virtual machine (VM) is a important software program, which is being used in cloud computing. It includes the behavior of the computer and also which is act as an implementation carrier to accomplish the running applications...
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