安装Oracle 11g RAC时,我们需要配置ntp服务。在使用虚拟机的情况下对于时钟同步方式的配置有很多种方式,可以使用vmware自带的时钟同步功能,也可以直接将本地的一个节点用作时间服务器。本文介绍直接配置ntp方式的时钟服务器。
- 1、查看两节点的hosts配置
- [root@node1 ~]
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- 127.0.0.1 localhost.szdb.com localhost
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- 192.168.7.71 node1.szdb.com node1
- 192.168.7.72 node2.szdb.com node2
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- 10.10.7.71 node1-priv.szdb.com node1-priv
- 10.10.7.72 node2-priv.szdb.com node2-priv
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- 192.168.7.81 node1-vip.szdb.com node1-vip
- 192.168.7.82 node2-vip.szdb.com node2-vip
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- 2、确认各节点的ntp包已经安装
- [oracle@node1 ~]$ rpm -qa | grep ntp
- ntp-4.2.2p1-9.el5_4.1
- chkfontpath-1.10.1-1.1
- [oracle@node1 ~]$ ssh node2 rpm -qa | grep ntp
- ntp-4.2.2p1-9.el5_4.1
- chkfontpath-1.10.1-1.1
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- 3、编辑两节点的ntp.conf文件
- [oracle@node1 ~]$ su - root
- Password:
- [root@node1 ~]
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- server 127.127.1.0 prefer
- restrict 192.168.7.0 mask 255.255.255.255 nomodify notrap
- broadcastdelay 0.008
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- [root@node2 ~]
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- server 192.168.7.71 prefer
- broadcastdelay 0.008
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- 4、编辑两节点的ntpd参数
- [root@node1 ~]
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- SYNC_HWCLOCK=yes
- OPTIONS="-x -u ntp:ntp -p /var/run/ntpd.pid"
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- [root@node2 ~]
- The following item added by Robinson
- SYNC_HWCLOCK=yes
- OPTIONS="-x -u ntp:ntp -p /var/run/ntpd.pid"
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- 5、配置ntp自启动服务
- [root@node1 ~]
- [root@node2 ~]
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- 6、在两节点启动ntp服务
- [root@node1 ~]
- Shutting down ntpd: [FAILED]
- [root@node1 ~]
- ntpd: Synchronizing with time server: [FAILED]
- Starting ntpd: [ OK ]
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- [root@node2 ~]
- Shutting down ntpd: [ OK ]
- ntpd: Synchronizing with time server: [ OK ]
- Syncing hardware clock to system time [ OK ]
- Starting ntpd: [ OK ]
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- 7、查看ntp状态
- [root@node1 ~]
- remote refid st t when poll reach delay offset jitter
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- LOCAL(0) .LOCL. 10 l 40 64 1 0.000 0.000 0.001
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- [root@node2 ~]
- remote refid st t when poll reach delay offset jitter
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- node1.szdb.com .INIT. 16 u 60 64 0 0.000 0.000 0.000
- LOCAL(0) .LOCL. 10 l 59 64 1 0.000 0.000 0.001
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- 也可以使用watch ntpq -p方式查看实时状态
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- 8、ntp的相关日志
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- [root@bigboy tmp]
配置Linux 11G R2 RAC NTP服务
原文:http://www.cnblogs.com/andy6/p/5877453.html