OpenShift Troubleshooting, Performance, and Best Practices

The concepts explained in Chapter 5, OpenShift Deployment, provided the foundation for you to initiate your first contact with an OpenShift cluster. In this chapter, we will give some tips on how to perform a health check on a cluster, dive into some root cause analysis (RCA), and also provide details on how to make a cluster run according to some best practices. Our intention with this chapter is to give you some general guidance about troubleshooting, however, it is important you always open a support ticket with Red Hat before making any changes in the platform due to troubleshooting attempts.

This chapter covers the following topics:

• Things that can crash a cluster
• Troubleshooting reference guide—how to start
• Understanding misleading error messages

Note

The source code used in this chapter is available at https://github.com/PacktPublishing/OpenShift-Multi-Cluster-Management-Handbook/tree...