How can I install only hawkular-cassandra shema again after initial deployment ?

Issue

• When the hawkular-cassandra is failed to install its schema during initial installation, you can see the following messages from the hawkular-metrics pod logs.

INFO  [org.hawkular.metrics.api.jaxrs.util.SchemaVersionChecker] (metricsservice-lifecycle-thread) Version check failed: Keyspace hawkular_metrics does not exist

• And you may also install the schema again when your case is in the following one.
  • The hawkular-cassandar PV is replaced with new one.
  • The hawkular-cassandar pod which is configured as emptyDir(temporary storage) was restarted. Because the emptyDir will be reset due to restart the pod.