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2015 IEEE International Conference on Autonomic Computing最新文献

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Design and Implementation of Data Management Scheme to Enable Efficient Analysis of Sensing Data 数据管理方案的设计与实现,以实现对传感数据的有效分析
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.58
Y. Hashi, Kazuyoshi Matsumoto, Y. Seki, M. Hiji, Toru Abe, T. Suganuma
ICT supports smart communities in their aim to build efficient and sustainable social infrastructure. To realize a smart community, it is necessary to manage and analyze data about the community including large volumes of sensing data, meta-data, as well as information on data sources and consent for use, all of which are interrelated. We propose a data management scheme capable of both high-speed search of large volumes of data for analysis, and flexible search of data which changes depending on the collection environment. A major characteristic of our scheme is that it combines a schema-free, document-oriented database and an graph database suited for flexible search. We implement proposed data management scheme, and evaluate a performance of the search for sensing data. As the result, searching time of large volumes of sensing data is very high-speed. We believe that proposed data management scheme is able to minimize the the time required for analysis.
信息通信技术支持智慧社区建设高效和可持续的社会基础设施。为了实现智慧社区,需要对社区数据进行管理和分析,包括大量的感知数据、元数据以及数据源信息和使用许可信息,这些数据都是相互关联的。我们提出了一种数据管理方案,既可以高速搜索大量数据进行分析,又可以根据收集环境的变化灵活搜索数据。我们的方案的一个主要特点是,它结合了一个无模式的、面向文档的数据库和一个适合灵活搜索的图形数据库。我们实现了提出的数据管理方案,并评估了对传感数据的搜索性能。因此,对大量传感数据的搜索速度非常快。我们相信提出的数据管理方案能够最大限度地减少分析所需的时间。
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引用次数: 5
HiSML: A High-Level Integrated Service Monitoring Language HiSML:一种高级集成服务监视语言
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.13
Xinkui Zhao, Jianwei Yin, Pengxiang Lin, Zuoning Chen
In this paper, we propose HiSML, a high-level integrated service monitoring language. The language is designed to build monitoring solutions for cloud computing platforms. The primary benefits of HiSML over existing monitoring tools are: 1) it is used to build the monitoring solution from scratch, and the monitored objects are specialized for the target platform, 2) it integrally monitors services in all layers of cloud computing platforms: infrastructure layer, platform layer and software layer, 3) it allows programmers to describe the dependency between monitored services to guide analysis on the collected data, 4) it allows programmers to manually store and backup the monitored data, 5) it supports hybrid programming with other programming languages to assist the adaptive management of cloud computing platforms.
在本文中,我们提出了一种高级集成服务监控语言HiSML。该语言旨在为云计算平台构建监控解决方案。与现有的监控工具相比,HiSML的主要优点是:1)它用于从头构建监控解决方案,并且被监控的对象专门针对目标平台;2)它集成地监控云计算平台所有层中的服务;基础设施层、平台层和软件层,3)它允许程序员描述被监控服务之间的依赖关系,以指导对收集数据的分析,4)它允许程序员手动存储和备份被监控数据,5)它支持与其他编程语言混合编程,以辅助云计算平台的自适应管理。
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引用次数: 2
ICE: An Integrated Configuration Engine for Interference Mitigation in Cloud Services ICE:用于云服务中干扰缓解的集成配置引擎
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.48
A. Maji, S. Mitra, S. Bagchi
Performance degradation due to imperfect isolation of hardware resources such as cache, network, and I/O has been a frequent occurrence in public cloud platforms. A web server that is suffering from performance interference degrades interactive user experience and results in lost revenues. Existing work on interference mitigation tries to address this problem by intrusive changes to the hyper visor, e.g., Using intelligent schedulers or live migration, many of which are available only to infrastructure providers and not end consumers. In this paper, we present a framework for administering web server clusters where effects of interference can be reduced by intelligent reconfiguration. Our controller, ICE, improves web server performance during interference by performing two-fold autonomous reconfigurations. First, it reconfigures the load balancer at the ingress point of the server cluster and thus reduces load on the impacted server. ICE then reconfigures the middleware at the impacted server to reduce its load even further. We implement and evaluate ICE on Cloud Suite, a popular web application benchmark, and with two popular load balancers - HA Proxy and LVS. Our experiments in a private cloud test bed show that ICE can improve median response time of web servers by up to 94% compared to astatically configured server cluster. ICE also outperforms an adaptive load balancer (using least connection scheduling) by up to 39%.
由于缓存、网络和I/O等硬件资源隔离不完善导致的性能下降在公共云平台中经常发生。受到性能干扰的web服务器会降低交互用户体验并导致收入损失。现有的干扰缓解工作试图通过对hypervisor进行侵入性更改来解决这个问题,例如,使用智能调度器或实时迁移,其中许多只对基础设施提供商可用,而对最终消费者无效。在本文中,我们提出了一个管理web服务器集群的框架,其中干扰的影响可以通过智能重新配置来减少。我们的控制器ICE通过执行两次自主重新配置,提高了干扰期间web服务器的性能。首先,它在服务器集群的入口点重新配置负载均衡器,从而减少受影响服务器上的负载。然后,ICE在受影响的服务器上重新配置中间件,以进一步减少其负载。我们在Cloud Suite(一个流行的web应用基准)上实现和评估ICE,并使用两个流行的负载平衡器——HA Proxy和LVS。我们在私有云测试平台上的实验表明,与静态配置的服务器集群相比,ICE可以将web服务器的中位数响应时间提高94%。ICE的性能也比自适应负载均衡器(使用最少的连接调度)高出39%。
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引用次数: 34
An Architecture Model for Harvesting-Aware Applications in FPGA FPGA中采集感知应用的体系结构模型
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.19
Marília Lima, Pedro Lazaro A. Santos, C. Araujo
This paper describes a novel scalable architecture model for the design of harvesting-aware applications on FPGAs. The objective of the proposed approach is to reduce the additional design complexity inherent to this type of design. The adopted strategy was to adapt the energy consumption of the system by controlling the toggle rate of its signals according to the energy prediction and the performance levels set by the system designer. The architecture model was designed in a Cyclone IV FPGA and its main advantages are: it may be used within a wide range of applications, since it has been modelled to control synchronous systems, it causes a little impact on the project design, as to couple the harvesting-aware subsystem with the application modules does not imply changes in the application source code. In the case study presented, an RGB-YCbCr converter was used as an application in order to validate the implementation data, simulation and results presented in this paper.
本文描述了一种用于fpga采集感知应用设计的新型可扩展体系结构模型。所建议的方法的目标是减少这种类型的设计所固有的额外设计复杂性。所采用的策略是根据系统设计者设定的能量预测和性能水平,通过控制信号的切换率来适应系统的能量消耗。该体系结构模型是在Cyclone IV FPGA中设计的,它的主要优点是:它可以在广泛的应用中使用,因为它已经被建模为控制同步系统,它对项目设计的影响很小,因为将采集感知子系统与应用模块耦合并不意味着在应用程序源代码中进行更改。最后,以RGB-YCbCr变换器为例,对本文的实现数据、仿真结果进行了验证。
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引用次数: 2
A Framework for Cost-Effective Scheduling of MapReduce Applications MapReduce应用的高效调度框架
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.38
Nikos Zacheilas, V. Kalogeraki
Real-time, cost-effective execution of "Big Data" applications on MapReduce clusters has been an important goal for many scientists in recent years. The MapReduce paradigm has been widely adopted by major computing companies as a powerful approach for large-scale data analytics. However, running MapReduce workloads in cluster environments has been particularly challenging due to the trade-offs that exist between the need for performance and the corresponding budget cost. Furthermore, the large number of resource configuration parameters exacerbates the problem, as users must manually tune the parameters without knowing their impact on the performance and budget costs. In this paper, we describe our approach to cost-effective scheduling of MapReduce applications. We present an overview of our framework that enables appropriate configuration of parameters to detect cost-efficient resource allocations. Our early experimental results illustrate the working and benefit of our approach.
近年来,在MapReduce集群上实时、高效地执行“大数据”应用程序一直是许多科学家的重要目标。MapReduce范式作为一种强大的大规模数据分析方法,已经被主要的计算公司广泛采用。然而,在集群环境中运行MapReduce工作负载特别具有挑战性,因为需要在性能需求和相应的预算成本之间进行权衡。此外,大量的资源配置参数加剧了这个问题,因为用户必须在不知道它们对性能和预算成本的影响的情况下手动调优参数。在本文中,我们描述了MapReduce应用程序的成本效益调度方法。我们概述了我们的框架,该框架支持适当的参数配置,以检测具有成本效益的资源分配。我们的早期实验结果说明了我们的方法的工作和好处。
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引用次数: 5
Self-Configuration of the Number of Concurrently Running MapReduce Jobs in a Hadoop Cluster Hadoop集群MapReduce并发作业数自配置
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.54
Bo Zhang, Filip Krikava, Romain Rouvoy, L. Seinturier
There is a trade-off between the number of concurrently running MapReduce jobs and their corresponding map and reduce tasks within a node in a Hadoop cluster. Leaving this trade-off statically configured to a single value can significantly reduce job response times leaving only sub optimal resource usage. To overcome this problem, we propose a feedback control loop based approach that dynamically adjusts the Hadoop resource manager configuration based on the current state of the cluster. The preliminary assessment based on workloads synthesized from real-world traces shows that the system performance can be improved by about 30% compared to default Hadoop setup.
在Hadoop集群的节点中,并发运行MapReduce作业的数量与其对应的map和reduce任务之间存在权衡。将这种权衡静态配置为单个值可以显著减少作业响应时间,只留下次优的资源使用。为了克服这个问题,我们提出了一种基于反馈控制循环的方法,该方法可以根据集群的当前状态动态调整Hadoop资源管理器配置。基于从实际跟踪中合成的工作负载的初步评估表明,与默认Hadoop设置相比,系统性能可以提高约30%。
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引用次数: 11
Adaptive Resource Management in the Cloud: The CORT (Cloud Open Resource Trading) Case Study 云中的自适应资源管理:CORT(云开放资源交易)案例研究
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.55
C. Raibulet, Andrea Zaccara
Essentially, cloud computing is based on a scenario where specialized providers offer a huge amount of resources to stakeholders, which require them based on their actual needs. The stakeholders needs may be characterized by significant fluctuations due to the model of payment, which is based on the pay-per-use paradigm. This has an important implication: cloud providers have to make an initial expensive investment in resources. Nowadays, available cloud computing solutions are provided by known players on the IT market such as Google, IBM, Amazon, or Microsoft. Small or medium size players have difficulties to compete in this domain. In this paper, we introduce our vision for cloud computing which aims to (1) exploit adaptive mechanisms for resource management and optimize resource usage by discouraging idle resources, (2) provide a market exchange model exploiting trading mechanisms for resource allocation, and (3) support failure management for critical situations. These objectives are sustained by a motivating example. Furthermore, the paper introduces several implementation hints based on our current prototype.
从本质上讲,云计算基于这样一种场景:专门的提供商向涉众提供大量资源,涉众根据自己的实际需求需要这些资源。利益攸关方的需求可能因基于按使用付费模式的支付模式而出现大幅波动。这有一个重要的含义:云提供商必须在资源上进行昂贵的初始投资。如今,可用的云计算解决方案是由IT市场上的知名参与者(如Google、IBM、Amazon或Microsoft)提供的。中小型玩家很难在这个领域竞争。在本文中,我们介绍了我们对云计算的愿景,其目标是:(1)利用自适应机制进行资源管理,并通过阻止闲置资源来优化资源使用;(2)提供利用交易机制进行资源分配的市场交换模型;(3)支持关键情况下的故障管理。这些目标是由一个激励的例子来维持的。此外,本文还介绍了基于现有原型的几个实现提示。
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引用次数: 1
iKaaS Data Modeling: A Data Model for Community Services and Environment Monitoring in Smart City iKaaS数据建模:智慧城市社区服务与环境监测的数据模型
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.64
Kazuo Hashimoto, Keiji Yamada, K. Tabata, Michio Oda, T. Suganuma, A. Biswas, P. Vlacheas, V. Stavroulaki, Dimitris Kelaidonis, A. Georgakopoulos
Intelligent Knowledge as a Service (iKaaS) is an ambitious project aiming at integrating sensor management using Internet of Things (IoT) and cloud services by employing sensor data. The platform design covers self-healing functions based on self-awareness as well as basic functions such as inter-cloud, security/privacy management, and devices and data management. From the viewpoint of application development, ontology sharing is the most important to integrate services. This paper, the first step towards ontology sharing, defines the iKaaS data model as one that integrates data models used in all applications in the project. The data defined in the iKaaS data model is converted into RDF format and stored in the RDF database. The reasoning mechanism in semantic web allows the semantic integration of data and applications. The iKaaS project is developing a prototype community service, town management and healthcare, in Tagonishi's Smart City. Presenting the iKaaS data model for these said services, this paper emphasizes the necessity of higher contextual awareness to achieve the goal of a better-fitted personalization for the individual.
智能知识即服务(iKaaS)是一个雄心勃勃的项目,旨在通过利用传感器数据,利用物联网(IoT)和云服务集成传感器管理。平台设计包括基于自我意识的自愈功能,以及云间、安全/隐私管理、设备和数据管理等基础功能。从应用程序开发的角度来看,本体共享是实现服务集成的关键。本文是实现本体共享的第一步,将iKaaS数据模型定义为集成项目中所有应用程序中使用的数据模型的数据模型。iKaaS数据模型中定义的数据被转换成RDF格式并存储在RDF数据库中。语义web中的推理机制允许数据和应用程序的语义集成。iKaaS项目正在田西的智慧城市开发一个社区服务、城镇管理和医疗保健的原型。本文介绍了这些服务的iKaaS数据模型,强调了提高上下文感知的必要性,以实现更适合个人的个性化目标。
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引用次数: 6
Revenue Driven Resource Allocation for Virtualized Data Centers 虚拟化数据中心的收益驱动资源分配
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.40
Sajib Kundu, R. Rangaswami, Ming Zhao, Ajay Gulati, K. Dutta
The increasing VM density in cloud hosting services makes careful management of physical resources such as CPU, memory, and I/O bandwidth within individual virtualized servers a priority. To maximize cost-efficiency, resource management needs to be coupled with the revenue generating mechanisms of cloud hosting: the service level agreements (SLAs) of hosted client applications. In this paper, we develop a server resource management framework that reduces data center resource management complexity substantially. Our solution implements revenue-driven dynamic resource allocation which continuously steers the resource distribution across hosted VMs within a server such as to maximize the SLA-generated revenue from the server. Our experimental evaluation for a VMware ESX hyper visor highlights the importance of both resource isolation and resource sharing across VMs. The empirical data shows a 7%-54% increase in total revenue generated for a mix of 10-25 VMs hosting either similar or diverse workloads when compared to using the currently available resource distribution mechanisms in ESX.
云托管服务中不断增加的VM密度使得对物理资源(如CPU、内存和单个虚拟化服务器中的I/O带宽)的仔细管理成为一个优先事项。为了最大限度地提高成本效益,资源管理需要与云托管的创收机制相结合:托管客户端应用程序的服务水平协议(sla)。本文开发了一个服务器资源管理框架,大大降低了数据中心资源管理的复杂性。我们的解决方案实现了收入驱动的动态资源分配,它持续地引导服务器内托管虚拟机之间的资源分配,例如最大化服务器上sla生成的收入。我们对VMware ESX hypervisor的实验评估强调了资源隔离和跨vm资源共享的重要性。经验数据显示,与使用ESX中当前可用的资源分配机制相比,托管相似或不同工作负载的10-25个虚拟机的组合产生的总收入增加了7%-54%。
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引用次数: 13
Designing ReDy Distributed Systems 设计ready分布式系统
Pub Date : 2015-07-07 DOI: 10.1109/ICAC.2015.63
K. Hafdi, A. Kriouile
Distributed systems are largely present and deployed in recent applications. Several systems have common basic requirements, which motivates to adapt reusable solutions for each family of systems. In this paper, we focus on distributed systems designed for large-scale applications requiring a high degree of Reliability and Dynamicity (ReDy distributed systems). We propose a basic architecture for this family of systems and a design solution to guarantee the scalability of the system, the fault tolerance, and a highly dynamic membership management. The studied systems range from hybrid architecture, on which we combine centralized and decentralized solutions.
分布式系统大量出现并部署在最近的应用程序中。几个系统有共同的基本需求,这促使我们为每个系统系列调整可重用的解决方案。在本文中,我们关注的是为需要高度可靠性和动态性的大规模应用而设计的分布式系统(ReDy分布式系统)。本文提出了该系统的基本体系结构和设计方案,以保证系统的可扩展性、容错性和高度动态的成员管理。所研究的系统包括混合架构,在混合架构上我们结合了集中和分散的解决方案。
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引用次数: 4
期刊
2015 IEEE International Conference on Autonomic Computing
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