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Exadata Nodes May Have Mandatory Lines Missing In /etc/ntp.conf (Doc ID 1663047.1)

Last updated on JUNE 05, 2019

Applies to:

Oracle Exadata Storage Server Software - Version to [Release 11.2]
Information in this document applies to any platform.


If you are using Exadata Storage Server software or


if cluvfy is reporting following errors.

Command : cluvfy comp clocksync -n all -verbose



"NTP common Time Server Check started...
PRVF-5410 : Check of common NTP Time Server failed
PRVF-5416 : Query of NTP daemon failed on all nodes
Result: Clock synchronization check using Network Time Protocol(NTP) failed

PRVF-9652 : Cluster Time Synchronization Services check failed

Verification of Clock Synchronization across the cluster nodes was unsuccessful on all the specified nodes."


Exachk may succeed .

(Reference: Oracle Exadata Database Machine exachk or HealthCheck  <Note 1070954.1>

In addition to the above ;

You may also try following command

# ntpq -pn


If you are getting following error.




localhost.localdomain: timed out, nothing received

***Request timed out



You are using Exadata Storage Server software or



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