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  • System Monitors are tools that execute repeated checks for the availability of software components. 
    • For example, Nagios® is an Open Source System Monitor that is available at http://www.nagios.org.
    • An ecosystem of more or less compatible System Monitors has evolved, e.g. op5®, Checkmk and many others.
  • Users can monitor JS7 by use of with both Open Source licensed products and by commercially licensed products that to check the availability of the JOC Cockpit, Controller and Agents..

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  • Active Checks are initiated from the System Monitor server and are performed on a regular basis, e.g. every 5 minutes.
    • The purpose of Active Checks is to verify the availability of the JS7 components.
    • Active Checks make use of the JS7 - REST Web Service API. For efficiency the checks are implemented with Perl.
  • Passive Checks are initiated from the JOC Cockpit and report execution results of workflows and jobs to a System Monitor.
    • This mechanism is by far more accurate and efficient than polling the JS7 History for failed workflows and jobs.
    • The JS7 - NotificationsNotification can be used for management of complex Passive Checks that are forwarded to a System Monitor.