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Title: Efficient Monitoring of Data Streams by Hibernation and Piggybacking

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Title:
Efficient Monitoring of Data Streams by Hibernation and Piggybacking
Author Name:
Mr.G.Balakrishnan, K.Prakash
Abstract:
Monitoring data streams in a distributed system is the focus of much research in recent years.The monitoring problem consists of determining whether the value of a global function, defined on the union of all streams, crossed a certain threshold. In existing system, a general approach for monitoring heterogeneous streams (HGM) is used, which defines constraints tailored to fit the data distributions at the nodes. HGM provides a practical solution, which reduces the running time by hierarchically clustering nodes with similar data distributions. HGM also present a method for recovering from local violations at the nodes. But it triggers communication only after a safe-zone breach occurs. In our proposed system, we are creating a monitoring tool which secures the database with hibernation. It also monitors the attack, once if any found it will raise an alarm and blocks the attacker if necessary. Hibernation will secure the database with object security. The Piggybacking method is used for reducing communication overhead. Our Experiments yield an improvement of over an order of magnitude in communication and data security relative to HGM.
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