How many nodes are required for a production Dynatrace Managed cluster to ensure high availability?

A production Dynatrace Managed cluster requires three nodes to ensure high availability. This configuration allows for a resilient setup where the system can sustain failures in one of the nodes without impacting the overall availability and performance of the monitoring solution.

In a high availability setup, three nodes ensure that there is sufficient redundancy and that the cluster can maintain operational integrity. If one node goes down, the remaining two can continue to handle the workload, providing failover capabilities. This setup also allows for quorum, which is essential for distributed systems to make decisions about the state of the cluster components.

Using three nodes helps achieve a balanced distribution of the workload and provides enough resources for data redundancy, ensuring that no single point of failure can disrupt the monitoring services that Dynatrace provides. While a cluster could technically operate with two nodes, it may struggle to maintain high availability and can face issues if either of the nodes fails, as that would leave only one operational node in the cluster.