I am facing an issue of large offset coming from my GPS clock.
I am syncing RHEL 6.3 server by GPS clock through ntpd service. I have too servers of same type and both are syncing independently to the GPS Clock.
>ntpstat of server 1 gives,
>ntpstat of server 2 gives,
>ntpq -p of server 1 gives
>ntpq -p of server 2 gives, Ping -c 25 server1 gives, Ping -c 25 server2 gives,
Checked and found that ntp.conf file for identical for both the server.
Drift for server 1 is,
Drift for server 2 is,
After 15 mins when i check the same parameter, I found the following.
>ntpq -p of server 1 gives
>ntpq -p of server 2 gives,
>ntpstat of server 1 gives,
>ntpstat of server 2 gives,
I also found that there is a difference of 50 seconds between Linux system clock and GPS time in server 1 and 2.
I have run ntpdate -d (GPS Clock IP) and stop the NTPD service.
Run,
>hwclock -S in RHEL system and restarted NTPD service hoping that it will decrease the time between source and synch and NTPD will be able to adjust the time now.But unfortunately offset and jitter in increasing and RHEL servers' time lag increases w.r.t time.
I am finding difficult to understand the above happenings.Can somebody suggest how to troubleshoot the issue?
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Last edited by Don Cragun; 04-21-2017 at 06:48 PM..
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