[Nodebrain-announce] NodeBrain 0.9.03 Released
Rule Engine for State and Event Monitoring
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[Nodebrain-announce] NodeBrain 0.9.03 Released
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From: Ed T. <ea...@no...> - 2014-12-15 00:58:20
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </head><body> <p>NodeBrainers,</p> <p>Release 0.9.03 is available for download at SourceForge.  See <a target="_blank" href="http://nodebrain.org">http://nodebrain.org</a> for more info.  A Demo link has been added to the project home page.  It takes you to a small demonstration site, <a target="_blank" href="http://demo.nodebrain.org.">http://demo.nodebrain.org</a>.  You can experiment with online changes to the demonstration scenarios. The site currently prevents external interactions between the rule engine, the host system and remote information sources, so it is only a way to study rule engine behavior with a small set of rules and transactions submit via a web form.</p> <p>The goal of the next release is to add support for an "un-clocked play mode', where one or more time stamped transaction files drives a simulation, and a transaction is simply a NodeBrain command (e.g. assert and alert).  The rule engine's internal clock will ignore the system clock and step as quickly as possible in pretend one second increments from the time of a given transaction to the time of the next transaction.  The idea is to process events faster than real-time while making the same decisions that would have been made in real-time.  This mode will be used for regression testing the rule engine and for experimentation and validation of rules by using a well understood and repeatable event stream.  It can also be used by the demonstration site.  A closely related "clocked play mode' will convert the input time stamps to time intervals between transactions and operate in real-time based on the system clock.  This mode will run much slower, but will enable simulations that involve interaction with other components operating in real-time.  This is just a plan based on a concept today.  What is learned while attempting to implement it may cause adjustments to the plan. </p> <p>Ed </p> </body></html> |
