- Ganglia and Nagios services are inaccessible. When attempting to restart from Ambari, it fails to start apache due to an SSL configuration issue.
- No cluster metrics/stats data is available on the Services tab, the Hosts tab, or the dashboard tab, as in the images below.
Check if the following line is uncommented in
/etc/httpd/conf.d/ssl.conf while the
server-chain.crt file is not present in the system:
Comment out the above line.
Apache will start successfully and bring the cluster metrics back to a working state.