Playing push vs pull: models and algorithms for disseminating dynamic data in networks

Consider a network in which a collection of source nodes maintain and periodically update data objects for a collection of sink nodes, each of which periodically accesses the data originating from some specified subset of the source nodes. We consider the task of efficiently relaying the dynamically changing data objects to the sinks from their sources of interest. Our focus is on the following “push-pull” approach for this data dissemination problem. Whenever a data object is updated, its source relays the update to a designated subset of nodes, its push set; similarly, whenever a sink requires an update, it propagates its query to a designated subset of nodes, its pull set. The push and pull sets need to be chosen such that every pull set of a sink intersects the push sets of all its sources of interest. We study the problem of choosing push sets and pull sets to minimize total global communication while satisfying all communication requirements. We formulate and study several ...

• Type: Conference
• Year: 2006
• Where: SPAA
• Authors: R. C. Chakinala, Abishek Kumarasubramanian, Kofi A. Laing, R. Manokaran, C. Pandu Rangan, Rajmohan Rajaraman
• Keywords: Data Objects, Distributed And Parallel Computing, Pull Sets, Push Sets, SPAA 2006