sonic-buildimage/files/image_config/ntp/ntp-config.sh
Ying Xie aecebac86b [ntp] disable ntp long jump (#4748)
Found another syncd timing issue related to clock going backwards.
To be safe disable the ntp long jump.

Signed-off-by: Ying Xie <ying.xie@microsoft.com>
2020-06-16 08:15:00 -07:00

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#!/bin/bash
ntp_default_file='/etc/default/ntp'
ntp_temp_file='/tmp/ntp.orig'
reboot_type='cold'
function get_database_reboot_type()
{
SYSTEM_WARM_START=`sonic-db-cli STATE_DB hget "WARM_RESTART_ENABLE_TABLE|system" enable`
SYSTEM_FAST_START=`sonic-db-cli STATE_DB get "FAST_REBOOT|system"`
if [[ x"${SYSTEM_WARM_START}" == x"true" ]]; then
reboot_type='warm'
elif [[ x"${SYSTEM_FAST_START}" == x"1" ]]; then
reboot_type='fast'
fi
}
function modify_ntp_default
{
cp ${ntp_default_file} ${ntp_temp_file}
sed -e "$1" ${ntp_temp_file} >${ntp_default_file}
}
sonic-cfggen -d -t /usr/share/sonic/templates/ntp.conf.j2 >/etc/ntp.conf
get_database_reboot_type
echo "Disabling NTP long jump for reboot type ${reboot_type} ..."
modify_ntp_default "s/NTPD_OPTS='-g'/NTPD_OPTS='-x'/"
systemctl restart ntp