3.14. Problem: After performing a cluster install the Nagios server is not started

The Nagios server is not started after a cluster install and you are unable to manage it from Ambari Web.

 3.14.1. Solution

  1. Log into the Nagios server host.

  2. Confirm that the Nagios server is not running. From a shell:

    ps -ef | grep nagios

    You should not see a Nagios process running.

  3. Start the Nagios process manuallly. From a shell:

    service nagios start
  4. The server starts. You should be able to see that started state reflected in Ambari Web. You can now manage (start/stop) Nagios from Ambari Web.

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