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A Very Simple Monitoring Daemon (draft page)IntroductionThe needs of recent efforts to create a distributed storm surge forecasting model for Lake Pontchartrain in New Orleans and for Louisiana's Gulf Coast using the ADCIRC finite element coastal ocean model have required a way to create systems that are simple, easy to set up, and utilize distributed computing resources. Principles involved with distributed computer are well know, and this daemon is part of a simple attempt to implement some of these principles.In order to maximize efficient utilization of all available resources, a capability to run distinct parts of a single system on different resources was desired. Because of this, writing the system in a concurrent, reactive, and event based paradigm was the direction taken. An event detection and handling scheme was implemented using a shell script based daemon that monitored a spool directory for message files. Message file types were denoted by their extension, and information was communicated in the body of the message. A dispatch table was created to allow for the concise definition of actions, which facilitates the simple addition of event types. Links
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