RE: [chrony-users] Need help to understand chrony results

[<eric.le_corre@xxxxxxxxxxxxxxxxx>]

Ok, so i understand in my bad english it is normal 😊

Juste a second question : so i have two NTP server with chrony in my network. What is the best practize do you think :
Set for the two servers the same prefer external server ?
OR
Have two different prefer server ?

-----Message d'origine-----
De : Miroslav Lichvar <mlichvar@xxxxxxxxxx> 
Envoyé : mardi 28 novembre 2023 14:13
À : chrony-users@xxxxxxxxxxxxxxxxxxxx
Objet : Re: [chrony-users] Need help to understand chrony results

On Tue, Nov 28, 2023 at 01:36:54PM +0100, eric.le_corre@xxxxxxxxxxxxxxxxx wrote:
> I don't understand because when i pass the command chronyc tracking, i 
> have different results between the 2 servers in 'ref time (UTC)'. If i 
> launch the command in the same time on the two servers :
> 
>  
> 
> Server one : Ref time (UTC)  : Tue Nov 28 12:32:43 2023
> 
> Server two : Ref time (UTC)  : Tue Nov 28 12:33:00 2023
> 
>  
> 
> Sometimes the differents is more than 10 minutes. How to understand this ?

It's not the current time. It's the last update of the clock, which is made when a new measurement is accepted from the source having '*' in "chronyc sources". Even if you start the servers at the same time, they will not be sending requests at the same time as the polling intervals have small random adjustments, so the times cannot be expected to be the same.

--
Miroslav Lichvar


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