Re: Question on 11gR2 RAC Cluster Time Synchronization Service (CTSS)

From: David Robillard <>
Date: Thu, 23 Jun 2011 07:30:52 -0400
Message-ID: <>

Hello Li,

> We have been using ntpdate for time sync in a cron job in our 10gR2
> RAC, guess we'll still need to use it in 11gR2 RAC. I wonder why
> Oracle provides CTSS since we still need to sync time with a time
> server?

Instead of writing a cron job to use ntpdate, IMHO you should configure ntp and bypass ctss completely. Configure it once on all your hosts and voilą! all your troubles are over (well, one of them at least :) Plus ntp is very easy to setup. If you need help on that or a reliable time source, check

HTH, David

Mobile: +1 514 966 0122
Received on Thu Jun 23 2011 - 06:30:52 CDT

Original text of this message