View source for OpenShift Metrics Installation Failed because Heapster and Hawkular were not starting

=Internal=

* [[OpenShift_Troubleshooting#Cases|OpenShift Troubleshooting]]

=Cause=

* Enabled verbose installation.
* Identified the ReplicationController template files created on the master by Ansible (/tmp/openshift-metrics-ansible-C6Xjkq/templates/metrics-heapster-rc.yaml) - see [[OpenShift_Installation#Installation_Troubleshooting|Installation Troubleshooting]].
* Executed the ResourceController creation by hand:

 oc create -f heapster.yaml
 The ReplicationController "heapster" is invalid: spec.template.spec.containers[0].resources.limits: Invalid value: "500Mi": must be greater than or equal to memory request

* The inventory file had silent typing errors:
** openshift_metrics_heapster_request_memory should have been openshift_metrics_heapster_requests_memory
** openshift_metrics_heapster_request_cpu should have been openshift_metrics_heapster_requests_cpu
** etc.