PK Protect has the option to set up failover recovery for the controller. In the case of controller failure, all saved data will transfer to the secondary controller. Search-it, Find-it, and Files tasks that are running when the primary IDP or controller goes down may have to be re-run. However, HDFS tasks that are running when the primary controller goes down will continue to run once the secondary controller comes online.
To set up high availability:
Install the first instance of PK Protect and once the installation is complete, stop the Tomcat service of this instance.
Install the second instance of PK Protect on a different machine using the same metadata repository of the first instance. Once the install completes, stop the Tomcat service of this instance.
Start Tomcat from any of the above two PK Protect instances but make sure Tomcat service is running only for one instance at any given time.
Login to Admin for the instance on which the Tomcat service was started.
See Section 4.3.5 Warm Standby for further details & steps.