If you are installing a multi-instance system, the system must have either one or three master instances, regardless of the total number of instances it includes.
You need to select which of the instances in your system will be master instances.
If you are installing a multi-instance system, the system must have either one or three master instances, regardless of the total number of instances it includes.
Important:
- For a production system, use three master instances.
- You cannot add master instances to a system after it's installed. You can, however, add any number of worker instances.
If you are deploying a single-instance system, that instance will automatically be configured as a master instance and run all services for the system.