Stanford InfoLab Publication Server

Replicated condition monitoring

Huang, Yongqiang Huang and Garcia-Molina, Hector (2001) Replicated condition monitoring. Technical Report. Stanford.




A condition monitoring system tracks real-world variables and alerts users when a predefined condition becomes true, e.g., when stock price drops, or when a nuclear reactor overheats. Replication of monitoring servers can reduce the probability that an important alert is missed. However, replicated independent servers can sometimes report ``conflicting'' alerts to the user, causing confusion. In this paper, we study the problem of replicated condition monitoring. We identify and formally define three desirable properties of a replicated system, namely, orderedness, consistency, and completeness. We propose new monitoring algorithms that enforce some or all of the desired properties in different scenarios.

Item Type:Techreport (Technical Report)
Uncontrolled Keywords:condition monitoring systems; publish/subscribe systems; replication; consistency; fault tolerance; mobile computing
Subjects:Computer Science > Distributed Systems
Computer Science > Mobile Computing
Related URLs:Project Homepage
ID Code:486
Deposited By:Import Account
Deposited On:28 Feb 2001 16:00
Last Modified:27 Dec 2008 10:02

Download statistics

Repository Staff Only: item control page