ALBPM Enterprise allows you to .... what is failover in this case? What data is preserved, etc?
Primary and Backup Engines
- you can configure multiple engines to serve as the backup - when the primary engine fails, any of the back up engines will take over as the primary - when the failed engine is restarted, it joins the pool of backup engines - each backup engine communicates with the primary engine to see if it is still running - This communication occurs every 5 seconds - The primary engine to function as the primary engine as long as the following conditions are true: - The primary engine is running (what is the message sent?) - The primary engine returns the EngineBusyException - The primary engine status cannot be obtained because the host cannot be contacted - This can be caused by - an engine configuration problem - a java.net.UnknownHostException error - a java.net.MalformedURLException error - a java.net.NoRouteToHostException error