2013 IEEE 5th International Conference on Cloud Computing Technology and Science最新文献_第9页

Adding a Live Migration Model into SimGrid: One More Step Toward the Simulation of Infrastructure-as-a-Service Concerns 向SimGrid中添加实时迁移模型:向模拟基础设施即服务关注点又迈进了一步

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.20

Takahiro Hirofuchi, A. Lèbre, L. Pouilloux

{"title":"Adding a Live Migration Model into SimGrid: One More Step Toward the Simulation of Infrastructure-as-a-Service Concerns","authors":"Takahiro Hirofuchi, A. Lèbre, L. Pouilloux","doi":"10.1109/CloudCom.2013.20","DOIUrl":"https://doi.org/10.1109/CloudCom.2013.20","url":null,"abstract":"Although virtual machine (VM) placement problem has been an active research area over the past decade, the research community is still looking for an open simulation framework that can simulate in an accurate as well as scalable manner VM operations including live migrations. Existing frameworks, however, leverage a naive migration model that considers neither memory update operations nor resource sharing contention, resulting in an underestimate of both the duration of a live migration and the size of migration traffic. In this paper, we propose a simulation framework of virtualized distributed systems with the first class support of live migration operations. We developed a resource share calculation mechanism for VMs and a live migration model implementing the precopy migration algorithm of Qemu/KVM. We extended a widely used simulation toolkit, SimGrid, which allows users to simulate large-scale distributed systems by using user-friendly programming API. Through experiments, we confirmed that our simulation framework correctly reproduced live migration behaviors of the real world under various conditions. Through a first use case, we also confirmed that it is possible to conduct large-scale simulations of complex virtualized workloads upon hundred thousands of VMs upon thousands of physical machines (PMs).","PeriodicalId":198053,"journal":{"name":"2013 IEEE 5th International Conference on Cloud Computing Technology and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131622466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Towards Achieving Anonymity in LBS: A Cloud Based Untrusted Middleware 在LBS中实现匿名:一种基于云的不可信中间件

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.143

Fizza Abbas, Rasheed Hussain, Junggab Son, Hasoo Eun, Heekuck Oh

引用次数: 1

Cloud Support for Latency-Sensitive Telephony Applications 对延迟敏感的电话应用的云支持

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.61

Jong-Yul Kim, H. Schulzrinne

引用次数: 5

The Trusted Cloud Transfer Protocol 可信云传输协议

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.126

Mathias Slawik

{"title":"The Trusted Cloud Transfer Protocol","authors":"Mathias Slawik","doi":"10.1109/CloudCom.2013.126","DOIUrl":"https://doi.org/10.1109/CloudCom.2013.126","url":null,"abstract":"Contemporary cloud computing solutions incorporate HTTP intermediaries, such as reverse proxies, load balancers, and intrusion prevention systems. These act as TLS server connection ends and access HTTP/TLS plaintext to carry out their functions. This raises many concerns: increased security efforts, the risk of losing confidentiality and integrity, and potentially unauthorized data access. Current HTTP entity-body encryption technologies address these concerns by providing end-to-end security between user agents and origin servers. However, they present disparate deficiencies, e.g., inefficient presentation languages, message-flow vulnerabilities, and the circumvention of HTTP streaming. This paper introduces the Trusted Cloud Transfer Protocol (TCTP), which presents a novel approach to entity-body encryption overcoming these deficiencies. The pivotal idea of TCTP are HTTP application layer encryption channels (HALECs), which integrate TLS functionality into the HTTP application layer. TCTP can be deployed immediately, as it is fully HTTP compliant, and rapidly implemented, as required TLS libraries are widely available. The reliance upon the mature TLS protocol minimizes the risk of introducing new security threats. Furthermore, TLS brings the benefit of relative efficiency, which is demonstrated on the basis of an example TCTP implementation.","PeriodicalId":198053,"journal":{"name":"2013 IEEE 5th International Conference on Cloud Computing Technology and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126371512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

The Hydra: A Layered, Redundant Configuration Management Approach for Cloud-Agnostic Disaster Recovery Hydra:用于与云无关的灾难恢复的分层、冗余配置管理方法

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.158

Ke Huang, Kyrre M. Begnum

引用次数: 2

Monitoring Personal Data Transfers in the Cloud 监控云中的个人数据传输

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.52

Anderson Santana de Oliveira, Jakub Sendor, Alexandr Garaga, Kateline Jenatton

引用次数: 17

Multi-layered Architecture for the Management of Virtualized Application Environments within Inter-cloud Platforms 云平台内虚拟化应用环境管理的多层体系结构

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.138

Omar Abdul-Rahman, K. Aida

引用次数: 5

Towards GPU-Accelerated Large-Scale Graph Processing in the Cloud 面向gpu加速的云中的大规模图形处理

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.8

Jianlong Zhong, Bingsheng He

{"title":"Towards GPU-Accelerated Large-Scale Graph Processing in the Cloud","authors":"Jianlong Zhong, Bingsheng He","doi":"10.1109/CloudCom.2013.8","DOIUrl":"https://doi.org/10.1109/CloudCom.2013.8","url":null,"abstract":"Recently, we have witnessed that cloud providers start to offer heterogeneous computing environments. There have been wide interests in both clusters and cloud of adopting graphics processors (GPUs) as accelerators for various applications. On the other hand, large-scale graph processing is important for many data-intensive applications in the cloud. In this paper, we propose to leverage GPUs to accelerate large-scale graph processing in the cloud. Specifically, we develop an in-memory graph processing engine G2 with three non-trivial GPU-specific optimizations. Firstly, we adopt fine-grained APIs to take advantage of the massive thread parallelism of the GPU. Secondly, G2 embraces a graph partition based approach for load balancing on heterogeneous CPU/GPU architectures. Thirdly, a runtime system is developed to perform transparent memory management on the GPU, and to perform scheduling for an improved throughput of concurrent kernel executions from graph tasks. We have conducted experiments on an Amazon EC2 virtual cluster of eight nodes. Our preliminary results demonstrate that 1) GPU is a viable accelerator for cloud-based graph processing, and 2) the proposed optimizations improve the performance of GPU-based graph processing engine. We further present the lessons learnt and open problems towards large-scale graph processing with GPU accelerations.","PeriodicalId":198053,"journal":{"name":"2013 IEEE 5th International Conference on Cloud Computing Technology and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117283602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Defining "The Weakest Link" Comparative Security in Complex Systems of Systems 定义复杂系统的比较安全中的“最薄弱环节”

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.101

W. Pieters

{"title":"Defining \"The Weakest Link\" Comparative Security in Complex Systems of Systems","authors":"W. Pieters","doi":"10.1109/CloudCom.2013.101","DOIUrl":"https://doi.org/10.1109/CloudCom.2013.101","url":null,"abstract":"Cloud architectures are complex socio-technical systems of systems, consisting not only of technological components and their connections, but also of physical premises and employees. When analysing security of such systems and considering countermeasures, the notion of \"weakest link\" often appears. Humans are then typically said to be the \"weakest link\" when it comes to security, but no proof is provided for this statement. One reason for this is the fact that there are no unified metrics of security that would apply to physical, digital and social components of complex systems alike. How does one compare the security of a room against the security of a piece of data, and how does social engineering an employee compare to exploiting a server vulnerability? Are we really comparing apples and oranges here, or would it be possible to present a comparative metric that would apply across the different domains? This paper explores the possibility of such a metric for complex systems, and proposes one in terms of the risk induced by an entity in the system. This also provides a foundation for the notion of \"weakest link\", in terms of the entity (set of entities) with the highest induced risk.","PeriodicalId":198053,"journal":{"name":"2013 IEEE 5th International Conference on Cloud Computing Technology and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115053999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Dynamic Workflow Reconfigurations for Recovering from Faulty Cloud Services 云服务故障恢复的动态工作流重新配置

2013 IEEE 5th International Conference on Cloud Computing Technology and Science Pub Date : 2013-12-02 DOI: 10.1109/CloudCom.2013.19

L. Assunção, J. Cunha

{"title":"Dynamic Workflow Reconfigurations for Recovering from Faulty Cloud Services","authors":"L. Assunção, J. Cunha","doi":"10.1109/CloudCom.2013.19","DOIUrl":"https://doi.org/10.1109/CloudCom.2013.19","url":null,"abstract":"The workflow paradigm is a well established approach to deal with application complexity by supporting the application development by composition of multiple activities. Furthermore workflows allow encapsulating parts of a problem inside an activity that can be reused in different workflow application scenarios for instance long-running experiments such as the ones involving data streaming. These workflows are characterized by multiple, eventually infinite, iterations processing datasets in multiple activities according to the workflow graph. Some of these activities can invoke Cloud services often unreliably or with limitations on quality of service provoking faults. After a fault the most common approach requires restarting of the entire workflow which can lead to a waste of execution time due to unnecessarily repeating of computations. This paper discuss how the AWARD (Autonomic Workflow Activities Reconfigurable and Dynamic) framework supports recovery from activity faults using dynamic reconfigurations. This is illustrated through an experimental scenario based on a long-running workflow where an activity fails when invoking a Cloud-hosted Web service with a variable level of availability. On detecting this, the AWARD framework allows the dynamic reconfiguration of the corresponding activity to access a new Web service, and avoiding restarting the complete workflow.","PeriodicalId":198053,"journal":{"name":"2013 IEEE 5th International Conference on Cloud Computing Technology and Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129720026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6