Starting with Qlik Sense June 2017 you can set a Qlik Sense rim node to be a failover candidate for the Central node. That timeout for failover is set automatically to 10 minutes, but you can change that.
For more information on how Failovers and Failover candidates function, see: Configuring failover for central node resiliency.
February 2018 and up
In Qlik Sense February 2018 and above, the value can be changed in the Qlik Sense Management Console. See the QMC resources overview > Service cluster on the Qlik Help for more details.
Pre-February 2018
Environment:
Qlik Sense June 2017
Qlik Sense September 2017
Qlik Sense November 2017
QRS API
The preferred method, using the QRS (Repository) API: QRS API: Change Central Node Failover Timeout
PowerShell
The open source Qlik CLI cmdlet for PowerShell is an simplified method to execute QRS APIs. Below guide describes how the Central Node failover timeout can be altered through Qlik CLI. See How To Change Qlik Sense Central Node Failover Timeout Through PowerShell.
Manual modification of the database
Not recommended. Note that manual modification to the database are not supported by Qlik. Caution is adviced and backups need to be taken before tampering with the database at any time. See Manually Change Central Node Failover Timeout using PgAdmin
