See also Troubleshooting monitoring in Logstash.
Symptoms: There is no information about your cluster on the Monitoring page in Kibana.
Check whether the appropriate indices exist on the monitoring cluster. For
example, use the cat indices command to verify that
there is a
.monitoring-kibana* index for your Kibana monitoring data and a
.monitoring-es* index for your Elasticsearch monitoring data. If you are collecting
monitoring data by using Metricbeat the indices have
-mb in their names. If
the indices do not exist, review your configuration: Monitoring the Elastic Stack.