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Accepted
SimonJGreen
Asked: 2012-11-04 14:19:07 +0800 CST

疯狂的 VM 时钟漂移

  • 772

这是从在 ESX5 上运行的 Ubuntu 10.10 VM 获取的：

Nov  3 21:58:50 server1 ntpd[21169]: adjusting local clock by 31.187370s
Nov  3 22:02:36 server1 ntpd[21169]: adjusting local clock by 31.159808s
Nov  3 22:05:18 server1 ntpd[21169]: adjusting local clock by 31.067579s
Nov  3 22:07:59 server1 ntpd[21169]: adjusting local clock by 30.952187s
Nov  3 22:11:38 server1 ntpd[21169]: adjusting local clock by 30.890147s

根据VMWare KB的说法，Ubuntu 10.10 不需要内核调整来保持时间达到他们的标准。

特别奇怪的是漂移似乎相当一致。

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更新

我一直在日志上运行 tail 一段时间来观看这个，然后回到它并注意到每次轮询时距离都在减少，这很......奇怪......

Nov  3 21:58:50 server1 ntpd[21169]: adjusting local clock by 31.187370s
Nov  3 22:02:36 server1 ntpd[21169]: adjusting local clock by 31.159808s
Nov  3 22:05:18 server1 ntpd[21169]: adjusting local clock by 31.067579s
Nov  3 22:07:59 server1 ntpd[21169]: adjusting local clock by 30.952187s
Nov  3 22:11:38 server1 ntpd[21169]: adjusting local clock by 30.890147s
Nov  3 22:15:56 server1 ntpd[21169]: adjusting local clock by 30.797336s
Nov  3 22:19:02 server1 ntpd[21169]: adjusting local clock by 30.645081s
Nov  3 22:22:30 server1 ntpd[21169]: adjusting local clock by 30.607198s
Nov  3 22:23:44 server1 ntpd[21169]: adjusting local clock by 30.542707s
Nov  3 22:27:56 server1 ntpd[21169]: adjusting local clock by 30.413376s
Nov  3 22:29:45 server1 ntpd[21169]: adjusting local clock by 30.322777s
Nov  3 22:33:14 server1 ntpd[21169]: adjusting local clock by 30.259502s
Nov  3 22:36:17 server1 ntpd[21169]: adjusting local clock by 30.181322s
Nov  3 22:38:30 server1 ntpd[21169]: adjusting local clock by 30.103619s
Nov  3 22:40:34 server1 ntpd[21169]: adjusting local clock by 30.074569s
Nov  3 22:41:43 server1 ntpd[21169]: adjusting local clock by 29.996409s
Nov  3 22:45:26 server1 ntpd[21169]: adjusting local clock by 29.902263s
Nov  3 22:48:04 server1 ntpd[21169]: adjusting local clock by 29.791393s
Nov  3 22:51:21 server1 ntpd[21169]: adjusting local clock by 29.763237s
Nov  3 22:54:22 server1 ntpd[21169]: adjusting local clock by 29.619058s
Nov  3 22:57:34 server1 ntpd[21169]: adjusting local clock by 29.510606s
Nov  3 23:00:43 server1 ntpd[21169]: adjusting local clock by 29.455033s
Nov  3 23:03:36 server1 ntpd[21169]: adjusting local clock by 29.390589s
Nov  3 23:05:05 server1 ntpd[21169]: adjusting local clock by 29.264441s
Nov  3 23:09:19 server1 ntpd[21169]: adjusting local clock by 29.189259s
Nov  3 23:11:48 server1 ntpd[21169]: adjusting local clock by 29.101459s
Nov  3 23:15:14 server1 ntpd[21169]: adjusting local clock by 29.017875s
Nov  3 23:18:14 server1 ntpd[21169]: adjusting local clock by 28.906337s
ubuntu

2 个回答

  1. 确保主机的时钟（硬件）和 NTP 正确。是吗？否则，您的客人将难以赶上时间……

    您的来宾中是否安装了 VMWare 工具？

    • 5
  2. Best Answer

    结果是因为我没有在 ntp.conf 中的任何服务器上指定 iburst 标志，它没有做一个大的跳跃来纠正时间。大约 12 小时后，它自行稳定下来，现在准确无误。

    • 3

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