白眉大叔 这里有2中方案， 我们选择第2种 用chronyd
1-基于chronyd守护进程实现集群时间同步:
(1)手动同步时区和时间
\cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime(2)安装服务chrony
yum -y install chrony(3)修改配置文件
vim /etc/chrony.conf
...
# server 0.centos.pool.ntp.org iburst
# server 1.centos.pool.ntp.org iburst
# server 2.centos.pool.ntp.org iburst
# server 3.centos.pool.ntp.org iburst
server ntp.aliyun.com iburst
server ntp1.aliyun.com iburst
server ntp2.aliyun.com iburst
server ntp3.aliyun.com iburst
server ntp4.aliyun.com iburst
server ntp5.aliyun.com iburst
(4)启动服务
systemctl enable --now chronyd(5)查看服务状态
systemctl status chronyd
(6) 验证 chrony 同步状态：
chronyc sourcestats -v
阿里云买的 ECS 已经 配置了 /etc/chrony.conf
server ntp.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp1.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp1.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp10.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp11.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp12.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp2.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp2.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp3.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp3.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp4.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp4.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp5.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp5.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp6.aliyun.com minpoll 4 maxpoll 10 iburst
server ntp6.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp7.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp8.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
server ntp9.cloud.aliyuncs.com minpoll 4 maxpoll 10 iburst
2- 基于ntpdate配合crontab实现集群同步:
(1) 手动同步时区和时间
yum -y install ntpdate
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
echo 'Asia/Shanghai' >/etc/timezone
ntpdate ntp.aliyun.com
(2) 定期任务同步("crontab -e")
*/5 * * * * /usr/sbin/ntpdate ntp.aliyun.com
欢迎来撩 ： 汇总all
