介绍Cloudera Manager 集群的ntp设置.
查看时区
[root@cdh1 ~]# timedatectl
Local time: Fri 2019-10-11 17:24:57 CST
Universal time: Fri 2019-10-11 09:24:57 UTC
RTC time: Fri 2019-10-11 09:24:57
Time zone: Asia/Shanghai (CST, +0800)
NTP enabled: no
NTP synchronized: no
RTC in local TZ: no
DST active: n/a
如果时区不对，先调整时区
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
安装ntp (所有节点)
yum install -y ntp
修改ntp配置文件(cdh1)
vim /etc/ntp.conf
# 允许内网其他机器同步时间
restrict 192.168.10.0 mask 255.255.255.0 nomodify notrap
server 0.cn.pool.ntp.org iburst
server 1.cn.pool.ntp.org iburst
server 2.cn.pool.ntp.org iburst
server 3.cn.pool.ntp.org iburst
修改ntp配置文件(其他节点)
vim /etc/ntp.conf
# 与主节点同步时间
server cdh1
重启ntpd
xcall systemctl start ntpd
xcall systemctl enable ntpd
过5分钟左右,可以看到cdh1的同步结果
