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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] Why is it not selecting servers
- From: Miroslav Lichvar <mlichvar@xxxxxxxxxx>
- Date: Mon, 28 Nov 2022 14:39:50 +0100
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On Mon, Nov 28, 2022 at 12:52:06PM +0000, MUZZULINI Frank wrote:
> Hi,
>
> This one really puzzles me:
> MS Name/IP address Stratum Poll Reach LastRx Last sample
> ===============================================================================
> =x 192.168.42.1 11 5 367 38 +63.5s[ +63.5s] +/- 121us
> =x 192.168.42.2 11 6 377 78 +58.2s[ +58.2s] +/- 42us
> =x 192.168.42.3 11 7 0 799 +79.2s[ +79.2s] +/- 110us
> =x 192.168.42.4 11 8 0 84m +112.2s[+112.2s] +/- 112us
> ^x 172.16.253.1 2 10 377 1010 +835ms[ +835ms] +/- 8853us
> ^x 10.26.59.11 1 9 377 212 +836ms[ +836ms] +/- 859us
> ^x 10.26.59.12 1 8 377 194 +836ms[ +836ms] +/- 909us
> ^x 10.26.59.13 1 8 377 22 +836ms[ +836ms] +/- 838us
>
> There are four server that agree on the correct time.
> There are also two peers which are free running just like the machine itself.
> Why is it not selecting one of the servers?
If those two unreachable sources don't become reachable, it should
eventually reach a majority and update the clock. Otherwise you would
need at least 5 working sources.
> Using stratum 11 to synchronise peers amongst each other when the uplink is down is normal practice, isn't it? (It didn't seem to work here neither, but this may have a good reason, these are test-VMs and they may have done wild things...)
Only one source should be using the local reference unless the orphan
mode is enabled. If upstream connectivity is normally expected to
work, it's best to avoid local completely.
--
Miroslav Lichvar
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