また、サーバーを買うんですか?: NTP時刻同期ができない

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2008年10月16日木曜日

NTP時刻同期ができない


VS2005の上で動かしていたLinuxのテスト環境で時刻同期が不安定になりました。

始めの数分間は同期が取れていたのですが、指定したNTPサーバーと同期しなくなってしまいました。

とりあえずの対処として
利用しているNTPサーバーの見直し(level合わせ)と、pollをかける間隔を見直(短く)して様子を見ている最中です。

そろそろ、Linux側のバージョンアップも含めて環境から要検討です。

3 件のコメント:

  1. どれくらいずれてしまったかを記録しておきます。

    Oct 14 00:09:21 ntpd[1750]: time reset -0.681038 s
    Oct 14 00:22:12 ntpd[1750]: time reset -0.892838 s
    Oct 14 00:38:19 ntpd[1750]: time reset -0.275393 s
    Oct 14 00:56:41 ntpd[1750]: time reset -0.574693 s
    Oct 14 01:18:14 ntpd[1750]: time reset -1.399332 s
    Oct 14 01:35:29 ntpd[1750]: time reset -0.730801 s
    Oct 14 01:51:34 ntpd[1750]: time reset -0.144599 s
    Oct 14 02:13:10 ntpd[1750]: time reset -0.766914 s
    Oct 14 02:31:18 ntpd[1750]: time reset -0.698703 s
    Oct 14 02:53:49 ntpd[1750]: time reset -0.562878 s
    Oct 14 03:12:07 ntpd[1750]: time reset -0.514785 s
    Oct 14 03:31:35 ntpd[1750]: time reset -0.375661 s
    Oct 14 03:51:03 ntpd[1750]: time reset -0.618306 s
    Oct 14 04:06:07 ntpd[1750]: time reset -0.542970 s
    Oct 14 04:22:16 ntpd[1750]: time reset -0.568568 s
    Oct 14 04:39:28 ntpd[1750]: time reset -0.330304 s
    Oct 14 04:56:48 ntpd[1750]: time reset -0.498905 s
    Oct 14 05:15:02 ntpd[1750]: time reset -0.678307 s
    Oct 14 05:27:57 ntpd[1750]: time reset -0.243573 s
    Oct 14 05:50:27 ntpd[1750]: time reset -0.605542 s
    Oct 14 06:11:49 ntpd[1750]: time reset -1.040975 s
    Oct 14 06:29:00 ntpd[1750]: time reset -0.589886 s
    Oct 14 06:51:30 ntpd[1750]: time reset -0.693960 s
    Oct 14 07:09:46 ntpd[1750]: time reset -1.757014 s
    Oct 14 07:25:48 ntpd[1750]: time reset -3.136425 s
    Oct 14 07:45:03 ntpd[1750]: time reset -0.937051 s
    Oct 14 08:04:26 ntpd[1750]: time reset -0.476858 s
    Oct 14 08:20:35 ntpd[1750]: time reset -0.741855 s
    Oct 14 08:47:30 ntpd[1750]: time reset -0.560619 s
    Oct 14 09:02:31 ntpd[1750]: time reset -0.514004 s
    Oct 14 09:23:58 ntpd[1750]: time reset -1.129486 s
    Oct 14 09:48:51 ntpd[1750]: time reset -0.578396 s
    Oct 14 10:21:05 ntpd[1750]: time reset -1.107616 s
    Oct 14 10:38:17 ntpd[1750]: time reset -0.324370 s
    Oct 14 11:00:48 ntpd[1750]: time reset -1.042303 s
    Oct 14 11:29:40 ntpd[1750]: time reset -12.209842 s
    Oct 14 11:49:07 ntpd[1750]: time reset -0.725402 s
    Oct 14 12:05:08 ntpd[1750]: time reset -0.310323 s
    Oct 14 12:20:08 ntpd[1750]: time reset -0.744458 s
    Oct 14 12:35:11 ntpd[1750]: time reset -0.397508 s
    Oct 14 12:56:37 ntpd[1750]: time reset -0.839588 s
    Oct 14 13:12:37 ntpd[1750]: time reset -0.430430 s
    Oct 14 13:29:49 ntpd[1750]: time reset -1.141741 s
    Oct 14 13:46:59 ntpd[1750]: time reset -1.151152 s
    Oct 14 14:09:29 ntpd[1750]: time reset -0.831384 s
    Oct 14 14:22:28 ntpd[1750]: time reset -0.732400 s
    Oct 14 14:45:59 ntpd[1750]: time reset -0.262019 s
    Oct 14 15:05:19 ntpd[1750]: time reset -0.816934 s
    Oct 14 15:30:10 ntpd[1750]: time reset -0.831677 s
    Oct 14 15:42:01 ntpd[1750]: time reset -0.625551 s
    Oct 14 15:58:00 ntpd[1750]: time reset -0.474886 s
    Oct 14 16:15:05 ntpd[1750]: time reset -0.671087 s
    Oct 14 16:30:12 ntpd[1750]: time reset -0.381481 s
    Oct 14 16:47:32 ntpd[1750]: time reset -0.461979 s
    Oct 14 17:03:39 ntpd[1750]: time reset -0.784496 s
    Oct 14 17:19:51 ntpd[1750]: time reset -0.556553 s
    Oct 14 17:41:25 ntpd[1750]: time reset -0.509561 s
    Oct 14 18:01:51 ntpd[1750]: time reset -0.837188 s
    Oct 14 18:22:15 ntpd[1750]: time reset -0.557539 s
    Oct 14 18:41:31 ntpd[1750]: time reset -0.381391 s
    Oct 14 18:58:47 ntpd[1750]: time reset -0.641200 s
    Oct 14 19:13:46 ntpd[1750]: time reset -1.531633 s
    Oct 14 19:34:10 ntpd[1750]: time reset -1.932552 s
    Oct 14 20:01:56 ntpd[1750]: time reset -0.941782 s
    Oct 14 20:30:50 ntpd[1750]: time reset -0.376712 s
    Oct 14 20:52:21 ntpd[1750]: time reset -0.739477 s
    Oct 14 21:02:04 ntpd[1750]: time reset -0.141258 s
    Oct 14 21:18:12 ntpd[1750]: time reset -0.423121 s
    Oct 14 21:34:17 ntpd[1750]: time reset -0.379165 s
    Oct 14 21:50:20 ntpd[1750]: time reset -0.850256 s
    Oct 14 22:07:27 ntpd[1750]: time reset -1.407484 s
    Oct 14 22:28:52 ntpd[1750]: time reset -0.817138 s
    Oct 14 22:43:58 ntpd[1750]: time reset -0.309402 s
    Oct 14 23:02:08 ntpd[1750]: time reset -0.632847 s
    Oct 14 23:22:28 ntpd[1750]: time reset -0.492477 s
    Oct 14 23:46:00 ntpd[1750]: time reset -0.403766 s
    Oct 15 00:04:30 ntpd[1750]: time reset -1.044704 s
    Oct 15 00:21:39 ntpd[1750]: time reset -1.391865 s
    Oct 15 00:39:53 ntpd[1750]: time reset -0.805338 s
    Oct 15 00:57:08 ntpd[1750]: time reset -0.504421 s
    Oct 15 01:17:26 ntpd[1750]: time reset -0.413776 s
    Oct 15 01:54:59 ntpd[1750]: time reset -0.704175 s
    Oct 15 02:29:22 ntpd[1750]: time reset -0.234575 s
    Oct 15 02:52:52 ntpd[1750]: time reset -0.393414 s
    Oct 15 03:20:47 ntpd[1750]: time reset -0.260525 s
    Oct 15 03:38:59 ntpd[1750]: time reset -0.420179 s
    Oct 15 04:09:57 ntpd[1750]: time reset -1.954505 s
    Oct 15 04:26:05 ntpd[1750]: time reset -0.470976 s
    Oct 15 04:48:40 ntpd[1750]: time reset -1.840406 s
    Oct 15 05:04:43 ntpd[1750]: time reset -0.660584 s
    Oct 15 05:29:29 ntpd[1750]: time reset -0.322797 s
    Oct 15 05:56:21 ntpd[1750]: time reset -0.598018 s
    Oct 15 06:17:53 ntpd[1750]: time reset -0.686454 s
    Oct 15 06:39:15 ntpd[1750]: time reset -2.697202 s
    Oct 15 06:57:33 ntpd[1750]: time reset -0.652242 s
    Oct 15 07:10:24 ntpd[1750]: time reset -0.182414 s
    Oct 15 07:32:04 ntpd[1750]: time reset -0.450640 s
    Oct 15 07:55:18 ntpd[1750]: time reset -21.380443 s
    Oct 15 08:05:00 ntpd[1750]: time reset -0.632436 s
    Oct 15 08:20:03 ntpd[1750]: time reset -2.101976 s
    Oct 15 08:40:31 ntpd[1750]: time reset -0.298113 s
    Oct 15 09:48:03 ntpd[1750]: time reset -10.365240 s
    Oct 15 10:17:09 ntpd[1750]: time reset -0.259083 s
    Oct 15 11:01:49 ntpd[1750]: time reset -35.189796 s
    Oct 15 11:56:20 ntpd[1750]: time reset -91.847724 s
    Oct 15 12:21:47 ntpd[1750]: time reset -17.180163 s
    Oct 15 12:36:56 ntpd[1750]: time reset -0.326068 s
    Oct 15 13:02:40 ntpd[1750]: time reset -0.418710 s
    Oct 15 14:24:46 ntpd[1945]: time reset -1.909991 s
    Oct 15 18:51:53 ntpd[2606]: time reset -4.853557 s
    Oct 15 19:11:46 ntpd[3205]: time reset -6.823203 s
    Oct 15 19:31:58 ntpd[3809]: time reset -5.482614 s
    Oct 15 19:57:43 ntpd[4578]: time reset -9.369808 s
    Oct 15 20:13:52 ntpd[4578]: time reset -4.532450 s
    Oct 15 20:31:02 ntpd[4578]: time reset -4.591490 s
    Oct 15 20:46:03 ntpd[4578]: time reset -4.406437 s
    Oct 15 21:02:02 ntpd[4578]: time reset -7.450243 s
    Oct 15 21:22:18 ntpd[4578]: time reset -5.161616 s
    Oct 16 09:21:07 ntpd[25273]: time reset -5.559364 s
    Oct 16 09:30:50 ntpd[25613]: time reset -0.142731 s
    Oct 16 10:03:11 ntpd[26747]: time reset -18.355794 s
    Oct 16 10:11:25 ntpd[27056]: time reset -4.299928 s
    Oct 16 10:18:31 ntpd[27251]: time reset -4.672193 s
    Oct 16 10:20:14 ntpd[27332]: time reset -0.760309 s
    Oct 16 10:20:58 ntpd[27402]: time reset -0.493008 s
    Oct 16 10:30:12 ntpd[27726]: time reset -7.152932 s
    Oct 16 10:44:07 ntpd[28186]: time reset -8.685038 s
    Oct 16 10:58:14 ntpd[28721]: time reset -4.842905 s
    Oct 16 11:06:00 ntpd[29025]: time reset -3.750836 s
    Oct 16 11:13:00 ntpd[29229]: time reset -3.468872 s
    Oct 16 11:14:03 ntpd[29255]: time reset -0.517349 s
    Oct 16 11:19:29 ntpd[29435]: time reset -7.267365 s
    Oct 16 11:20:56 ntpd[29567]: time reset -3.824564 s
    Oct 16 11:22:54 ntpd[29602]: time reset -2.987338 s
    Oct 16 11:32:38 ntpd[29944]: time reset -3.049017 s
    Oct 16 11:36:53 ntpd[30121]: time reset -2.744698 s
    Oct 16 11:37:57 ntpd[30150]: time reset -1.230330 s
    Oct 16 11:38:28 ntpd[30170]: time reset -0.409680 s
    Oct 16 11:40:16 ntpd[30277]: time reset -1.152568 s
    Oct 16 11:41:13 ntpd[30334]: time reset -0.824982 s
    Oct 16 11:41:50 ntpd[30359]: time reset -0.883487 s
    Oct 16 11:46:44 ntpd[30557]: time reset -5.202296 s
    Oct 16 12:01:55 ntpd[30557]: time reset -13.992417 s
    Oct 16 12:03:21 ntpd[31096]: time reset -2.324231 s
    Oct 16 12:19:47 ntpd[31096]: time reset -15.909940 s
    Oct 16 12:23:04 ntpd[31745]: time reset -4.576162 s
    Oct 16 12:39:43 ntpd[32325]: time reset -18.553475 s
    Oct 16 12:56:15 ntpd[32325]: time reset -17.617954 s
    Oct 16 13:11:55 ntpd[32325]: time reset -16.330523 s
    Oct 16 13:27:00 ntpd[32325]: time reset -18.443776 s
    Oct 16 13:43:29 ntpd[32325]: time reset -16.850864 s
    Oct 16 14:00:24 ntpd[32325]: time reset -17.201518 s
    Oct 16 14:17:41 ntpd[32325]: time reset -23.314527 s
    Oct 16 14:33:22 ntpd[32325]: time reset -27.421815 s
    Oct 16 14:50:44 ntpd[32325]: time reset -18.391917 s
    Oct 16 15:05:47 ntpd[32325]: time reset -15.940645 s
    Oct 16 15:19:44 ntpd[32325]: time reset -12.958775 s
    Oct 16 15:36:06 ntpd[32325]: time reset -16.289114 s
    Oct 16 15:53:05 ntpd[32325]: time reset -19.272837 s
    Oct 16 16:08:53 ntpd[32325]: time reset -15.506122 s
    Oct 16 16:24:41 ntpd[32325]: time reset -16.465338 s
    Oct 16 16:39:20 ntpd[32325]: time reset -15.536711 s
    Oct 16 16:54:42 ntpd[32325]: time reset -18.049684 s
    Oct 16 17:10:07 ntpd[32325]: time reset -17.807115 s
    Oct 16 17:25:51 ntpd[32325]: time reset -15.065155 s
    Oct 16 17:40:47 ntpd[32325]: time reset -16.441012 s
    Oct 16 17:55:46 ntpd[32325]: time reset -18.093766 s
    Oct 16 18:11:11 ntpd[32325]: time reset -13.055279 s
    Oct 16 18:26:49 ntpd[32325]: time reset -16.350948 s
    Oct 16 18:41:59 ntpd[32325]: time reset -16.324234 s
    Oct 16 18:56:59 ntpd[32325]: time reset -16.700101 s
    Oct 16 19:12:58 ntpd[32325]: time reset -20.742673 s
    Oct 16 19:28:49 ntpd[32325]: time reset -23.339892 s
    Oct 16 19:44:28 ntpd[32325]: time reset -14.669050 s
    Oct 16 19:58:47 ntpd[32325]: time reset -18.244132 s
    Oct 16 20:13:11 ntpd[32325]: time reset -14.429153 s
    Oct 16 20:29:14 ntpd[32325]: time reset -16.587791 s
    Oct 16 20:43:49 ntpd[32325]: time reset -14.509365 s
    Oct 16 20:58:24 ntpd[32325]: time reset -15.660340 s
    Oct 16 21:15:07 ntpd[32325]: time reset -17.833404 s
    Oct 16 21:30:26 ntpd[32325]: time reset -18.405236 s
    Oct 16 21:44:55 ntpd[32325]: time reset -13.916163 s
    Oct 16 22:00:09 ntpd[32325]: time reset -15.332250 s
    Oct 16 22:15:17 ntpd[32325]: time reset -13.192075 s
    Oct 16 22:30:55 ntpd[32325]: time reset -15.932099 s
    Oct 16 22:45:40 ntpd[32325]: time reset -14.848759 s
    Oct 16 23:01:35 ntpd[32325]: time reset -18.659435 s
    Oct 16 23:16:27 ntpd[32325]: time reset -15.896568 s
    Oct 16 23:34:00 ntpd[32325]: time reset -23.390576 s
    Oct 16 23:49:33 ntpd[32325]: time reset -17.386790 s
    Oct 17 00:07:01 ntpd[32325]: time reset -19.722649 s
    Oct 17 00:21:39 ntpd[32325]: time reset -15.257005 s
    Oct 17 00:37:17 ntpd[32325]: time reset -17.633426 s
    Oct 17 00:52:58 ntpd[32325]: time reset -19.482749 s
    Oct 17 01:08:08 ntpd[32325]: time reset -14.141328 s
    Oct 17 01:22:35 ntpd[32325]: time reset -18.106289 s
    Oct 17 01:39:11 ntpd[32325]: time reset -19.372313 s
    Oct 17 01:53:40 ntpd[32325]: time reset -15.200673 s
    Oct 17 02:08:36 ntpd[32325]: time reset -16.906279 s
    Oct 17 02:24:10 ntpd[32325]: time reset -15.001069 s
    Oct 17 02:40:41 ntpd[32325]: time reset -17.663435 s
    Oct 17 02:54:06 ntpd[32325]: time reset -13.437759 s
    Oct 17 03:09:42 ntpd[32325]: time reset -15.726690 s
    Oct 17 03:24:05 ntpd[32325]: time reset -14.874095 s
    Oct 17 03:38:45 ntpd[32325]: time reset -13.880982 s
    Oct 17 03:55:05 ntpd[32325]: time reset -17.481487 s
    Oct 17 04:10:36 ntpd[32325]: time reset -14.901437 s
    Oct 17 04:27:18 ntpd[32325]: time reset -19.004193 s
    Oct 17 04:43:40 ntpd[32325]: time reset -17.795300 s
    Oct 17 04:58:41 ntpd[32325]: time reset -17.318667 s
    Oct 17 05:15:06 ntpd[32325]: time reset -17.761933 s
    Oct 17 05:29:13 ntpd[32325]: time reset -17.481967 s
    Oct 17 05:45:19 ntpd[32325]: time reset -16.021413 s
    Oct 17 05:59:59 ntpd[32325]: time reset -15.752446 s
    Oct 17 06:15:37 ntpd[32325]: time reset -16.235758 s
    Oct 17 06:30:25 ntpd[32325]: time reset -17.928249 s
    Oct 17 06:44:05 ntpd[32325]: time reset -12.821938 s
    Oct 17 07:00:32 ntpd[32325]: time reset -12.967414 s
    Oct 17 07:16:08 ntpd[32325]: time reset -4.814334 s
    Oct 17 07:31:17 ntpd[32325]: time reset -5.088226 s
    Oct 17 07:45:02 ntpd[32325]: time reset -6.705594 s
    Oct 17 08:01:50 ntpd[32325]: time reset -9.430496 s
    Oct 17 08:17:05 ntpd[32325]: time reset -4.285651 s
    Oct 17 08:32:22 ntpd[32325]: time reset -4.249898 s
    Oct 17 08:47:51 ntpd[32325]: time reset -7.090538 s
    Oct 17 09:04:03 ntpd[32325]: time reset -4.430835 s
    Oct 17 09:19:29 ntpd[32325]: time reset -8.139039 s

    返信削除
  2. Oct 17 09:19:29 ntpd[32325]: time reset -8.139039 s
    Oct 17 09:35:34 ntpd[32325]: time reset -5.078391 s
    Oct 17 09:50:17 ntpd[32325]: time reset -4.931465 s
    Oct 17 10:05:29 ntpd[32325]: time reset -7.336790 s
    Oct 17 10:20:36 ntpd[32325]: time reset -5.745584 s
    Oct 17 10:36:49 ntpd[32325]: time reset -5.511483 s
    Oct 17 10:51:38 ntpd[32325]: time reset -4.083032 s
    Oct 17 11:07:35 ntpd[32325]: time reset -4.567455 s
    Oct 17 11:22:56 ntpd[32325]: time reset -10.045735 s
    Oct 17 11:38:55 ntpd[32325]: time reset -6.027956 s
    Oct 17 11:54:46 ntpd[32325]: time reset -5.171166 s
    Oct 17 12:09:18 ntpd[32325]: time reset -4.379755 s
    Oct 17 12:24:56 ntpd[32325]: time reset -3.718517 s
    Oct 17 12:40:45 ntpd[32325]: time reset -4.968103 s
    Oct 17 12:55:45 ntpd[32325]: time reset -4.955197 s
    Oct 17 13:11:08 ntpd[32325]: time reset -4.440132 s
    Oct 17 13:26:12 ntpd[32325]: time reset -4.354095 s
    Oct 17 13:42:01 ntpd[32325]: time reset -4.595398 s
    Oct 17 13:58:44 ntpd[32325]: time reset -5.066890 s
    Oct 17 14:12:37 ntpd[32325]: time reset -4.143437 s
    Oct 17 14:27:55 ntpd[32325]: time reset -4.971181 s
    Oct 17 14:43:46 ntpd[32325]: time reset -4.797821 s
    Oct 17 14:59:07 ntpd[32325]: time reset -4.937139 s
    Oct 17 15:15:11 ntpd[32325]: time reset -7.123986 s
    Oct 17 15:30:28 ntpd[32325]: time reset -4.703745 s
    Oct 17 15:46:10 ntpd[32325]: time reset -5.014858 s
    Oct 17 16:01:56 ntpd[32325]: time reset -5.728684 s
    Oct 17 16:17:02 ntpd[32325]: time reset -5.437640 s
    Oct 17 16:33:33 ntpd[32325]: time reset -4.726523 s
    Oct 17 16:48:43 ntpd[32325]: time reset -4.570699 s
    Oct 17 17:04:25 ntpd[32325]: time reset -4.869707 s
    Oct 17 17:19:41 ntpd[32325]: time reset -4.361369 s
    Oct 17 17:36:12 ntpd[32325]: time reset -6.002627 s
    Oct 17 17:50:16 ntpd[32325]: time reset -5.040551 s
    Oct 17 18:06:22 ntpd[32325]: time reset -5.751085 s
    Oct 17 18:23:14 ntpd[32325]: time reset -4.648683 s
    Oct 17 18:38:49 ntpd[32325]: time reset -4.599822 s
    Oct 17 18:53:39 ntpd[32325]: time reset -6.416714 s
    Oct 17 19:09:11 ntpd[32325]: time reset -5.623571 s

    返信削除
  3. 安定してきました。

    返信削除