UCCX Publisher and Subscriber NTP

subash cobi · ‎03-21-2016

Hi,

UCCX Publisher is down, how long before UCCX Subscriber loses its time since NTP is unsync.

We had a situation whereby UCCX Publisher was down for a few weeks, only after a few weeks..

And due to some hardware issue we were unable to bring the UCCX Pub back up immediately.

We notice that Subscriber time was out sync only after a few weeks.

Is there there a specific interval on when does the Subscriber loses its time it obtained from Pub each time.

Thanks.

Chakshu Piplani · ‎03-21-2016

Hi Subhash,

If you run the command:

"utils ntp status" on the subscriber node SSH, you will receive an output which will have a column named poll.

E.g. output:

admin:utils ntp status
ntpd (pid 4700) is running...

     remote           refid      st t when poll reach   delay   offset jitter
==============================================================================
10.127.224.139 .LOCL.           1 u   16 64   17    0.934 24876.2   6.116
172.18.108.15   .GPS.            1 u   36   64   17 244.872   -0.131   3.929
172.18.108.14   .GPS.            1 u   35   64   17 244.834   -0.136   4.147

unsynchronised
   polling server every 16 s

Current time in UTC is : Mon Mar 21 10:19:33 UTC 2016
Current time in Asia/Kolkata is : Mon Mar 21 15:49:33 IST 2016

That column tells when the next poll will happen, also you will find that it says "polling server every 16 s"

After 16 seconds if its unable to reach the NTP server it will go unsynchronized, however it will use its own clock to but there might be drift after a while.

You may use the following commands for diagnosis:

utils diagnose module ntp_reachability

utils diagnose module ntp_clock_drift

utils diagnose module ntp_stratum

Regards,

Chakshu Piplani

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Deepak Rawat · ‎03-21-2016

I don't think that there is a specific interval when the Subscriber will lose its time. Once the contact to primary UCCX is lost, NTP will still keep working on Secondary as long as the original NTP source that UCCX primary was using for NTP can be reached by the Secondary UCCX server.

Regards

Deepak