What is the default number of nodes recommended for high availability configurations in Tableau?

In a high availability configuration for Tableau, the recommended default number of nodes is four. This configuration ensures that there is sufficient redundancy and fault tolerance in the system. By having four nodes, if one node fails, there are still enough working nodes to maintain the availability of Tableau services. This setup also allows for load balancing, improving performance as multiple nodes can handle incoming requests.

The choice of four nodes strikes a balance between resource utilization and the capability to recover from node failures without service interruption. Maintaining fewer nodes may not provide adequate failover support, while having significantly more than four could lead to unnecessary complexity and resource management challenges. Therefore, four nodes provide a robust and efficient solution for maintaining high availability in Tableau deployments.