Internal

Overview

The general technique is to increase the logging level of various OpenShift master (api, controllers) and node processes as described here:

Change the Log Level for OpenShift Processes

--loglevel=10 seems to work fine.

Then tail the journalctl log.

For the master controller process:

journalctl -u atomic-openshift-master-controllers -f

For the node process:

journalctl -u atomic-openshift-node -f

oadm diagnostics MetricsApiProxy

oc -n <project-name> get pods

oc -n <project-name> describe po/<pod-name>

...
Status:			Failed
Reason:			MatchNodeSelector
Message:		Pod Predicate MatchNodeSelector failed