| Re: [chrony-users] All network sources unusable |
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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] All network sources unusable
- From: Denny Page <dennypage@xxxxxx>
- Date: Sat, 3 Jun 2023 15:20:45 -0700
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Try this:
chronyc -m sources sourcestats
This will print the sources and then the source stats. I suspect that the other sources you have are not actually being polled or are not reachable. Check the “Reach” column in sources.
Denny
> On Jun 3, 2023, at 14:31, Torsten Wolf <torsten.wolf@xxxxxxx> wrote:
>
> Bryan, many thanks for the explanation and the suggestion regarding SHM0. My only worry is that the sourcestats output is not offering much in terms of offset of the network sources:
>
> $ chronyc sourcestats
> Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
> ==============================================================================
> GPS 8 5 110 +444.701 259.006 +16ms 4453us
> PPS 64 37 1011 -0.000 0.002 -1ns 1058ns
> zeit.fu-berlin.de 0 0 0 +0.000 2000.000 +0ns 4000ms
> ptbtime1.ptb.de 0 0 0 +0.000 2000.000 +0ns 4000ms
> ptbtime2.ptb.de 0 0 0 +0.000 2000.000 +0ns 4000ms
> ptbtime3.ptb.de 0 0 0 +0.000 2000.000 +0ns 4000ms
> ns.tu-berlin.de 0 0 0 +0.000 2000.000 +0ns 4000ms
>
> Cheers,
> Torsten
>
> Bryan Christianson schrieb am 03.06.23 um 23:18:
>> Hi Torsten
>>
>> From the chrony.conf(5) manpage:
>> noselect Never select this source. This is useful for monitoring or with sources which are not very accurate, but are locked with a PPS refclock.
>>
>> Your 'noselect' hosts are not viable sources as they will never be selected. They will however show up in the 'chronyc sourcestats' list with their measured offsets.
>>
>> If you look at the gpsd link again, you will see they are displaying 'chronyc sourcestats', not 'sources' as you have posted.
>>
>> Also, I suggest you set the SHM 0 refclock to noselect - it will still be used by the pps refclock to give a timestamp to the pps readings but will not participate in setting the clock.
>>
>> I hope that helps.
>>
>> Regards, Bryan
>>
>>
>
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