Pod Scheduling

As a best practice when deploying Informix SQL Data store into kubernetes in production isolate the Informix Database server pods to a specific set of nodes. Also, make sure no two database server pods are scheduled on the save node.

Informix Server pod scheduling is controlled with the helm chart parameters:

  • informix.nodeSelectorRequired

  • informix.nodeSelector

  • informix.tolerations

To understand how Informix handles pod scheduling it is import to understand a few concepts.

  • Assigning Pods to Nodes (Affinity / Anti-affinity)

  • Taints and Tolerations

For more information on Pod scheduling, see kubernetes https://kubernetes.io/.