You must download the Advanced Clustering plug-in, from the Success Community website to install and set-up the plug-in. This plug-in is available for Mirth® Connect version 3.2.2 or greater.
Set Up Automatic Failover Automatic failover maximizes the availability of the Virtual IP address by switching to a standby server during a failure or service event.
Advanced Configuration By default, the cluster log queues have a maximum size of 10,000 messages. If you see logs not being recorded or warnings about the queues being close to full or full and you have spare resources, you can increase or decrease the queues using the .vmoptions files (mcserver.vmoptions or mcservice.vmoptions).