RE: Question on 11gR2 RAC Cluster Time Synchronization Service (CTSS)
- From: D'Hooge Freek <Freek.DHooge@xxxxxxxxx>
- To: "litanli@xxxxxxxxx" <litanli@xxxxxxxxx>, oracle-l <Oracle-L@xxxxxxxxxxxxx>
- Date: Wed, 22 Jun 2011 17:57:53 +0200
Li,
CTTS will indeed only keep the time of the cluster nodes synchronised between
the nodes themselves and not with an external source.
If you want this, then you need to configure the network time protocol (NTP)
daemon.
When the NTPD is running, the CTTS process will automatically run in "observer"
mode.
Regards,
Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge@xxxxxxxxx
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer: www.uptime.be/disclaimer
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Li Li
Sent: woensdag 22 juni 2011 17:17
To: oracle-l
Subject: Question on 11gR2 RAC Cluster Time Synchronization Service (CTSS)
Hi, List,
In a 11.2.0.2 RAC, with 11gR2 RAC Cluster Time Synchronization Service
(CTSS) running in active mode, CTSS does its work to sync time among
all nodes in the cluster. However, the time on all nodes gets behind
after a while (say 5 minutes behind after 8 months) . How would you
guys handle this situation? and how would you prevent this from
happening again? I've googled and searched on oracle documentation and
couldn't find anything about it.
Thanks in advance!
-Li
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