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reference: add "local activate" option

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This option sets an activating root distance for the local reference. The
local reference will not be used until the root distance drops below the
configured value for the first time. This can be used to prevent the local
reference from being activated on a server which has never been synchronised
with an upstream server. The default value of 0.0 causes no activating
distance to be used, such that the local reference is always eligible for
activation.
This commit is contained in:
Andy Fiddaman
2024-03-25 19:05:52 +00:00
committed by Miroslav Lichvar
parent b8ead3485b
commit 9397ae2b0a
11 changed files with 50 additions and 20 deletions
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10
doc/chrony.conf.adoc
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@@ -1675,6 +1675,14 @@ The current root distance can be calculated from root delay and root dispersion
----
distance = delay / 2 + dispersion
----
*activate* _distance_:::
This option sets an activating root distance for the local reference. The
local reference will not be used until the root distance drops below the
configured value for the first time. This can be used to prevent the local
reference from being activated on a server which has never been synchronised
with an upstream server. The default value of 0.0 causes no activating
distance to be used, such that the local reference is always eligible for
activation.
*orphan*:::
This option enables a special '`orphan`' mode, where sources with stratum equal
to the local _stratum_ are assumed to not serve real time. They are ignored
@@ -1697,7 +1705,7 @@ The *orphan* mode is compatible with the *ntpd*'s orphan mode (enabled by the
An example of the directive is:
+
----
local stratum 10 orphan distance 0.1
local stratum 10 orphan distance 0.1 activate 0.5
----
[[ntpsigndsocket]]*ntpsigndsocket* _directory_::