During the install of Oracle 18.104.22.168, the installer pre-requisite check fails on the NTP daemon configuration.
Network Time Protocol (NTP) – This task verifies cluster time synchronization on clusters that use Network Time Protocol (NTP).
Error: – PRVF-5507 : NTP daemon or service is not running on any node but NTP configuration file exists on the following node(s): localhost –
Cause: The configuration file was found on at least one node though no NTP daemon or service was running. –
Action: If you plan to use CTSS for time synchronization then NTP configuration must be uninstalled on all nodes of the cluster.
To address this, remove the /etc/ntp.conf file. This will allow the use of CTSS for time synchronization.
[root@localhost ~]# cd /etc [root@localhost etc]# mv ntp.conf ntp.conf.bak