| [chrony-users] pool DNS round-robin refresh |
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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: [chrony-users] pool DNS round-robin refresh
- From: Youssef Ghorbal <youssef.ghorbal@xxxxxxxxx>
- Date: Wed, 3 Jul 2019 18:56:49 +0200
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Hello,
In the pool directive documentation we can read :
"When a pool source is unreachable, marked as a falseticker, or has a
distance larger than the limit set by themaxdistance directive,
chronyd will try to replace the source with a newly resolved address
from the pool."
I have a dead server in a pool and it was removed from the DNS
round-robin, but chrony still lists it in "chrony sources" output.
It's clearly identified as unresponsive though (ntp04):
$ chronyc sources
210 Number of sources = 4
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^- ntp03 2 8 377 64 +248us[ +248us] +/- 10ms
^* ntp01 2 8 377 158 +17us[ +28us] +/- 1633us
^- ntp02 2 8 377 36 -36us[ -36us] +/- 12ms
^? ntp04 2 10 0 31h -7955us[ -248us] +/- 14ms
(ntp04 is dead since 48h now and DNS RR was updated since, DNS
resolver cache was correctly cleard)
In what case exactly (and when), does chrony is supposed to refresh
the list of IPs in a defined pool ?
Youssef
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