[ntp:questions] what happens when sys.peer turns stratum 16?

Richard B. Gilbert rgilbert88 at comcast.net
Mon May 31 19:49:14 UTC 2010


David Woolley wrote:
> Richard B. Gilbert wrote:
> 
>>
>> The more common case is that a server fails due to something like a 
>> power outrage.  When the power comes back, that server may be off by 
>> several seconds, or minutes.  It may take ten to twelve hours before 
>> that server is fit to serve time to any but the truly desperate!
> 
> Why is it not sending stratum 16 plus alarm?
>>
>>> What are the usual reasons for servers going crazy? 
>>
>> A power outrage is the most likely cause.  If the power is off long 
>> enough for the UPS to run down it will probably take ten to twelve 
>> hours to stabilize with the correct time.
> 
> So you accept that ntpd has an atrocious startup transient response?

I don't believe that I have ever said otherwise.  Since I run my 
timeserver 24x7 I need to restart it only after a power outrage lasting 
longer than the run time of my UPS.




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