IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012)最新文献

Smart checklists for human-intensive medical systems 人力密集型医疗系统的智能检查清单

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264661

G. Avrunin, L. Clarke, L. Osterweil, J. Goldman, T. Rausch

引用次数: 22

Invited talk: Virtual coaches in health care 特邀演讲:医疗保健中的虚拟教练

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264659

D. Siewiorek

引用次数: 4

Dependability as a cloud service - a modular approach 作为云服务的可靠性——一种模块化方法

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264688

Jan S. Rellermeyer, S. Bagchi

{"title":"Dependability as a cloud service - a modular approach","authors":"Jan S. Rellermeyer, S. Bagchi","doi":"10.1109/DSNW.2012.6264688","DOIUrl":"https://doi.org/10.1109/DSNW.2012.6264688","url":null,"abstract":"Failures of services on cloud platforms are only to be expected. To deal with such failures, one is naturally inclined to use the traditional measure of replication. However, replication of services on distributed cloud platforms poses several challenges that are not well met by today's Java middleware systems. These challenges are the need to isolate state in the application components so that easy migration and recovery are possible and the requirement for client transparency when dealing with different replicated service instances. For example, Java Enterprise Edition (JEE) makes it difficult to have transparent replication of services due to the above two reasons plus the fine-grained nature of interactions between its components (the Enterprise Java Beans). In this paper, we show parts of the design of OSGi, a specification defining a dynamic component system in Java, that make it suitable for the above task. We then propose two extensions to OSGi which will allow exposing and exporting application component state and transparent invocation of service instances. These two together can enable easy replication and recovery from failures in cloud environments. We show through experiments that our prototype can migrate a failed service quickly enough to a new machine so that a client experiences only a moderate increase in service invocation time during system recovery.","PeriodicalId":159358,"journal":{"name":"IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121181314","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: 8

Towards incorporating human intelligence into online security solutions 将人类智能融入在线安全解决方案

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264684

S. Zonouz, R. Berthier, Negin Arhami

引用次数: 1

Invited talk: A model and simulation for user-centric automation devices and systems 特邀演讲:以用户为中心的自动化设备和系统的模型和仿真

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264660

J. W. Liu

引用次数: 0

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264665

Kevin Mueller, M. Paulitsch, S. Tverdyshev, Holger Blasum

引用次数: 19

On limitations of using cloud storage for data replication 关于使用云存储进行数据复制的限制

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264683

C. Cachin, Birgit Junker, A. Sorniotti

{"title":"On limitations of using cloud storage for data replication","authors":"C. Cachin, Birgit Junker, A. Sorniotti","doi":"10.1109/DSNW.2012.6264683","DOIUrl":"https://doi.org/10.1109/DSNW.2012.6264683","url":null,"abstract":"Cloud storage services often provide a key-value store (KVS) functionality, an object-based interface for accessing a collection of unstructured data items or blobs. Every blob is associated with a key that serves as identifier to access the blob. In the simplest form, a key-value store provides only methods for writing and reading an entire blob, for removing blobs, and for listing all defined keys. On the other hand, many existing schemes for replicating data with the goal of enhancing resilience (e.g., based on quorum systems) associate logical timestamps with the stored values, in order to distinguish multiple versions of the same data item. This paper uses the consensus number of a shared storage abstraction as a measure for its power to facilitate the implementation of data replication. It is demonstrated that a KVS is a very simple primitive, not different from read/write registers in this sense, and that a replica capable of the typical operations on timestamped data is fundamentally more powerful than a KVS. Hence, data replication schemes over storage providers with a KVS interface are inherently more difficult to realize than replication schemes over providers with richer interfaces.","PeriodicalId":159358,"journal":{"name":"IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126918112","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

TRONE: Trustworthy and Resilient Operations in a Network Environment TRONE:网络环境下的可信和弹性操作

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264694

A. Casimiro, P. Veríssimo, D. Kreutz, Filipe Araújo, R. Barbosa, Samuel Neves, B. Sousa, M. Curado, Carlos Silva, R. Gandhi, P. Narasimhan

{"title":"TRONE: Trustworthy and Resilient Operations in a Network Environment","authors":"A. Casimiro, P. Veríssimo, D. Kreutz, Filipe Araújo, R. Barbosa, Samuel Neves, B. Sousa, M. Curado, Carlos Silva, R. Gandhi, P. Narasimhan","doi":"10.1109/DSNW.2012.6264694","DOIUrl":"https://doi.org/10.1109/DSNW.2012.6264694","url":null,"abstract":"Cloud infrastructures play an increasingly important role for telecom operators, because they enable internal consolidation of resources with the corresponding savings in hardware and management costs. However, this same consolidation exposes core services of the infrastructure to very disruptive attacks. This is indeed the case with monitoring, which needs to be dependable and secure to ensure proper operation of large datacenters and cloud infrastructures. We argue that currently existing centralized monitoring approaches (e.g., relying on a single solution provider, using single point of failure components) represent a huge risk, because a single vulnerability may compromise the entire monitoring infrastructure. In this paper, we describe the TRONE approach to trustworthy monitoring, which relies on multiple components to achieve increased levels of reliance on the monitoring data and hence increased trustworthiness. In particular, we focus on the TRONE framework for event dissemination, on security-oriented diagnosis based on collected events and on fast network adaptation in critical situations based on multi-homing application support. To validate our work, we will deploy and demonstrate our solutions in a live environment provided by Portugal Telecom.","PeriodicalId":159358,"journal":{"name":"IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132191237","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: 7

A study of fault-tolerance characteristics of data center networks 数据中心网络容错特性研究

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264696

Yang Liu, Dong Lin, J. Muppala, M. Hamdi

引用次数: 12

A scalable double in-memory checkpoint and restart scheme towards exascale 面向百亿亿级的可扩展双内存检查点和重启方案

IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012) Pub Date : 2012-06-25 DOI: 10.1109/DSNW.2012.6264677

G. Zheng, Xiang Ni, L. Kalé

{"title":"A scalable double in-memory checkpoint and restart scheme towards exascale","authors":"G. Zheng, Xiang Ni, L. Kalé","doi":"10.1109/DSNW.2012.6264677","DOIUrl":"https://doi.org/10.1109/DSNW.2012.6264677","url":null,"abstract":"As the size of supercomputers increases, the probability of system failure grows substantially, posing an increasingly significant challenge for scalability. It is important to provide resilience for long running applications. Checkpoint-based fault tolerance methods are effective approaches at dealing with faults. With these methods, the state of the entire parallel application is checkpointed to reliable storage. When a failure occurs, the application is restarted from a recent checkpoint. In previous work, we have demonstrated an efficient double in-memory checkpoint and restart fault tolerance scheme, which leverages Charm++'s parallel objects for checkpointing. In this paper, we further optimize the scheme by eliminating several bottlenecks caused by serialized communication. We extend the in-memory checkpointing scheme to work on MPI communication layer, and demonstrate the performance on very large scale supercomputers. For example, when running a one million atom molecular dynamics simulation on up to 64K cores of a BlueGene/P machine, the checkpoint time was in milliseconds. The restart time was measured to be less than 0.15 seconds on 64K cores.","PeriodicalId":159358,"journal":{"name":"IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN 2012)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124827910","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: 115