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User-Level Communication in Cluster-Based Servers

Enrique V. Carrera, Srinath Rao, Liviu Iftode, Ricardo Bianchini
2001
In this paper we evaluate an efficient cluster-based WWW server, as a function of the characteristics of the intra-cluster communication architecture.  ...  In contrast, user-level communication can improve performance by as much as 29%. Low processor overhead, remote memory writes, and zero-copy all make small contributions towards this overall gain.  ...  Related Work The main contribution of this paper is to quantify the performance impact of user-level communication and several messaging characteristics on cluster-based servers.  ... 
doi:10.7282/t3vt1wqp fatcat:dbk7xffztjhdpfpu54wbdzqeei

PRESS: a clustered server based on user-level communication

E.N. Carrera, R. Bianchini
2005 IEEE Transactions on Parallel and Distributed Systems  
In this paper, we propose and evaluate a cluster-based network server called PRESS.  ...  Our results for an 8-node server cluster and five WWW traces demonstrate that user-level communication can improve performance by as much as 52 percent compared to a kernel-level protocol.  ...  ACKNOWLEDGMENTS This work was supported in part by the US National Science Foundation under grants CCR-0100798 and EIA-9986046.  ... 
doi:10.1109/tpds.2005.60 fatcat:az4drvbjlvexrgyf5pdvrbxhee

An SSL Back-End Forwarding Scheme in Cluster-Based Web Servers

Jin-Ha Kim, Gyu Sang Choi, Chita R. Das
2007 IEEE Transactions on Parallel and Distributed Systems  
We examine the impact of SSL offering and SSL-session-aware distribution in cluster-based network servers.  ...  We propose a back-end forwarding scheme, called ssl_with_bf, that employs a low-overhead user-level communication mechanism like Virtual Interface Architecture to achieve a good load balance among server  ...  It is the first Web server model that exploits user-level communication in a In existing system, they have used to develop the cluster-based Web server.  ... 
doi:10.1109/tpds.2007.1062 fatcat:xgk6dl3rojbpbnywtpierzgrzm

Large-scale cooperative caching and application-level multicast in multimedia content delivery networks

Jian Ni, D.H.K. Tsang
2005 IEEE Communications Magazine  
ACKNOWLEDGMENT The authors would like to thank Xiaojun Hei for his help on the work presented in this article.  ...  In a three-level hierarchical approach as shown in Fig. 4 , a cluster at each level has CDN servers.  ...  CDN servers in different clusters cooperate via higher-level cooperation.  ... 
doi:10.1109/mcom.2005.1453429 fatcat:6fade2hcsneabig62d4zbvzohm

PARMON: a portable and scalable monitoring system for clusters

Rajkumar Buyya
2000 Software, Practice & Experience  
This enables management/monitoring of both Solaris and Linux-based clusters (federated clusters) through a single user interface.  ...  The major components of PARMON are parmon-server-system resource activities and utilization information provider and parmon-clienta GUI based client responsible for interacting with parmon-server and users  ...  Vikas B V has contributed to the development of the PARMON user manual.  ... 
doi:10.1002/(sici)1097-024x(200006)30:7<723::aid-spe314>3.0.co;2-5 fatcat:n2p6sjqcdvd77jcccom44wnhne

Construction of Community Web Directories based on Web usage Data

Ramancha Sandhyarani
2012 Advanced Computing An International Journal  
User community models take the form of thematic hierarchies and are constructed by employing clustering approach.  ...  In this context, we introduced and evaluated new clustering method.  ...  Acknowledgments We extremely thank our Principal and the management for their continuous support in Research and Development.  ... 
doi:10.5121/acij.2012.3205 fatcat:dhoqny23ebavpeqqk4gh6ejyca

A Study on the Design of Fog Computing Architecture Using Sensor Networks

Hyun-Jong Cha, Ho-Kyung Yang, You-Jin Song
2018 Sensors  
Based on fog computing, the proposed architecture provides efficient power management in IoT device communication between sensors and secure management of data to be decrypted based on user attributes.  ...  IoT interactively connects all communication devices and allows global access to the data generated by a device.  ...  A sensor network in IoT environment adopting clustering algorithm is divided into smaller areas called a cluster, as shown in Figure 5 . A cluster has an m-proxy server.  ... 
doi:10.3390/s18113633 fatcat:lzz3puakhjcclhscutfpujd454

Efficiency vs. portability in cluster-based network servers

Enrique V. Carrera, Ricardo Bianchini
2001 Proceedings of the eighth ACM SIGPLAN symposium on Principles and practices of parallel programming - PPoPP '01  
We also conclude that user-level communication can be useful even for non-scientific applications such as network servers.  ...  Based on our results, our main conclusion is that portability should be promoted in cluster-based network servers with low processor overhead, given its relatively low cost (≤ 16%) in terms of throughput  ...  In fact, as far as we know, PRESS is the first server to apply user-level communication and in particular the VIA standard. User-level communication has been studied in several previous papers (e.g.  ... 
doi:10.1145/379539.379589 dblp:conf/ppopp/CarreraB01 fatcat:tckl2xig5bayrcl5zvif3bhzim

Large Scale Environmental Monitoring through Integration of Sensor and Mesh Networks

Raja Jurdak, Abdelhamid Nafaa, Alessio Barbirato
2008 Sensors  
and resides at the server for user consumption.  ...  This holistic approach enables users to set high level policies that can adapt the resolution of information collected at the sensors, set the preferred performance targets for their application, and run  ...  Upon receiving the new address, the base station then becomes a distributed address server for all nodes in its cluster, and uses the new server-assigned or server-approved address as the base address  ... 
doi:10.3390/s8117493 pmid:27873941 pmcid:PMC3787457 fatcat:iyw2ow6crbbdxoah2shm74foya

Efficiency vs. portability in cluster-based network servers

Enrique V. Carrera, Ricardo Bianchini
2001 SIGPLAN notices  
We also conclude that user-level communication can be useful even for non-scientific applications such as network servers.  ...  Based on our results, our main conclusion is that portability should be promoted in cluster-based network servers with low processor overhead, given its relatively low cost (≤ 16%) in terms of throughput  ...  In fact, as far as we know, PRESS is the first server to apply user-level communication and in particular the VIA standard. User-level communication has been studied in several previous papers (e.g.  ... 
doi:10.1145/568014.379589 fatcat:m73okbrj4zferggz54ypxvgnma

Exploiting NIC Memory for Improving Cluster-Based Webserver Performance

Gyu Sang Choi, Jin-Ha Kim, Deniz Ersoz, Mazin S. Yousif, Chita R. Das
2005 Proceedings IEEE International Conference on Cluster Computing  
In this context, we exploit the local memory of programmable Network Interface Cards (NICs) to improve the performance of cluster-based Web servers, which are increasingly used in designing Web server  ...  We have implemented a prototype of the proposed NIC caching mechanism for a distributed Web server, based on PRESS [3], on an 8-node, Myrinet-connected Linux cluster.  ...  Background In this section, we summarize the user-level communication mechanism, a generic architecture of a cluster-based Web server, the PRESS Web server model, and communication mechanisms in a cluster-based  ... 
doi:10.1109/clustr.2005.347067 dblp:conf/cluster/ChoiKEYD05 fatcat:vj2up3vgkrbcrlwvk5z4b6ev6y

Peer to Peer Video on Demand Architecture using V-Chaining

Hareesh K, Manjaiah D. H
2004 INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY  
In P2P VoD architecture adopted both the peer to peer and proxy based architectural design of a VOD system for larger community of users over the network.  ...  In case of traditional centralized directory server approach all the users requests are directly handled by the centralized server and each user request will send dedicated stream by the server, which  ...  In P2P VoD architecture adopted both the peer to peer and proxy based architectural design of a VOD system for larger community of users over the network.  ... 
doi:10.24297/ijct.v3i2a.2814 fatcat:lqwg3ajqunaw7iqivoacnp4ygi

RAMS

Peng Gu, Jun Wang
2004 Proceedings of the international workshop on Storage network architecture and parallel I/Os - SNAPI '04  
Previous studies show that intra-cluster communication easily becomes a major performance bottleneck for a wide range of small write-sharing workloads especially read-only workloads in modern clustered  ...  RAMS makes two major contributions to facilitate the RDMA deployment: 1) design a novel RDMAbased user-level buffer cache architecture to cache both intra-cluster transferred data and data references;  ...  performance in cluster-based Web server.  ... 
doi:10.1145/1162628.1162637 fatcat:a3pcg5hdd5csxpdstrikcf7nem

A survey on security of Hadoop

Masoumeh Rezaei Jam, Leili Mohammad Khanli, Morteza Sargolzaei Javan, Mohammad Kazem Akbari
2014 2014 4th International Conference on Computer and Knowledge Engineering (ICCKE)  
Hadoop, as an open-source cloud computing and big data framework, is increasingly used in the business world, while the weakness of security mechanism now becomes one of the main problems obstructing its  ...  paper first describes the hadoop project and its present security mechanisms, then analyzes the security problems and risks of it, pondering some methods to enhance its trust and security and finally based  ...  Further to this, we gratefully acknowledge those in the Cloud Research Center at the Department of Computer engineering and Information Technology, Amirkabir University, IRAN and Cloud Computing lab in  ... 
doi:10.1109/iccke.2014.6993455 fatcat:y6xujhg4yvhqvhjys4moki3xwi

GGPRF: AGPU-Based Generic Parallel Rendering Framework

Juan ZUO, Feng JIANG, Zhi-jie LIN, Hai-feng HUANG, Qin-fei ZHANG
2018 DEStech Transactions on Computer Science and Engineering  
The framework contains three roles, Master, Server, and Slave, which are responsible for rendering task drivers, cluster management, and rendering.  ...  In this paper, the design of the frame is described in detail and the experiment is tested.  ...  The network layer is the lowest level in all layers, Shared by Master, Server and Slave, and responsible for internode communication.  ... 
doi:10.12783/dtcse/cmee2017/19966 fatcat:xmw7quhi7vhwtgnhtvuemdmgrq
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