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Adaptive push-pull: disseminating dynamic web data

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Title Adaptive push-pull: disseminating dynamic web data
 
Creator BHIDE, MANISH
DEOLASEE, PAWAN
KATKAR, AMOL
PANCHBUDHE, ANKUR
RAMAMRITHAM, KRITHI
SHENOY, PRASHANT
 
Subject information dissemination
adaptive algorithms
data processing
http
 
Description An important issue in the dissemination of time-varying Web data such as sports scores and stock prices is the maintenance of temporal coherency. In the case of servers adhering to the HTTP protocol, clients need to frequently pull the data based on the dynamics of the data and a user's coherency requirements. In contrast, servers that possess push capability maintain state information pertaining to clients and push only those changes that are of interest to a user. These two canonical techniques have complementary properties with respect to the level of temporal coherency maintained, communication overheads, state space overheads, and loss of coherency due to (server) failures. In this paper, we show how to combine push and pull-based techniques to achieve the best features of both approaches. Our combined technique tailors the dissemination of data from servers to clients based on 1) the capabilities and load at servers and proxies and 2) clients' coherency requirements. Our experimental results demonstrate that such adaptive data dissemination is essential to meet diverse temporal coherency requirements, to be resilient to failures, and for the efficient and scalable utilization of server and network resources.
 
Publisher IEEE
 
Date 2009-05-08T02:35:27Z
2011-12-08T06:56:02Z
2011-12-26T13:01:52Z
2011-12-27T05:47:29Z
2009-05-08T02:35:27Z
2011-12-08T06:56:02Z
2011-12-26T13:01:52Z
2011-12-27T05:47:29Z
2002
 
Type Article
 
Identifier IEEE Transactions on Computers 51(6), 652-668
0018-9340
10.1109/TC.2002.1009150
http://hdl.handle.net/10054/1300
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1300
 
Language en