centos - 时间无法同步时 chronyd 的行为

Question

当 chronyd 从时间同步到名称从池中解析的服务器的状态变为与服务器失去通信的状态时，它是如何工作的？

CentOS 7

# chronyd -v
chronyd (chrony) version 1.29.1

# grep server /etc/chrony.conf
# Use public servers from the pool.ntp.org project.
server 0.amazon.pool.ntp.org iburst
server 1.amazon.pool.ntp.org iburst
server 2.amazon.pool.ntp.org iburst
server 3.amazon.pool.ntp.org iburst
# Serve time even if not synchronized to any NTP server.

时间不同步

# chronyc sources
210 Number of sources = 4
MS Name/IP address         Stratum Poll Reach LastRx Last sample
===============================================================================
^? 45.76.218.213.vultr.com       2  10     0  518d  -6679us[-6905us] +/-   40ms
^? v150-95-148-140.a08d.g.ty     2  10     0  745d  -105.4s[ +315us] +/-   47ms
^? 45.76.98.188.vultr.com        3  10     0  564d  +1031ms[ -242us] +/-  209ms
^? 153-128-30-125.compute.jp     2  10     0  748d  -108.1s[-2427us] +/-   37ms

标签： centoscentos7ntp