NTP Clock Slew

[steveoelliott]

Hi all,

I see messages like this within my logs (journalctl | grep ntp):

Nov 03 16:59:17 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +0.906919 sec
Nov 03 17:03:36 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -1.069923 sec
Nov 03 17:04:40 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +0.568503 sec
Nov 03 17:05:15 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.577439 sec
Nov 03 17:05:17 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +1.052733 sec
Nov 03 17:05:36 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): -0.360672 sec
Nov 03 17:05:53 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): -0.269200 sec
Nov 03 17:06:11 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): +0.195196 sec
Nov 03 17:06:30 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.560859 sec
Nov 03 17:06:31 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +0.993274 sec
Nov 03 17:07:07 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -1.055429 sec
Nov 03 17:07:08 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +1.052738 sec
Nov 03 17:07:27 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): -0.358258 sec
Nov 03 17:07:45 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): -0.117938 sec
Nov 03 17:08:03 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): +0.066693 sec
Nov 03 17:08:38 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.670816 sec
Nov 03 17:08:39 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +1.035630 sec
Nov 03 17:09:46 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.674479 sec
Nov 03 17:10:04 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.453023 sec
Nov 03 17:10:05 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +1.083536 sec
Nov 03 17:10:25 NEW-DESPAIR connmand[5090]: ntp: adjust (slew): -0.296935 sec
Nov 03 17:10:43 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.756249 sec
Nov 03 17:10:45 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +1.056582 sec
Nov 03 17:11:05 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.869374 sec
Nov 03 17:11:06 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +0.809189 sec
Nov 03 17:11:25 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): -0.876823 sec
Nov 03 17:11:26 NEW-DESPAIR connmand[5090]: ntp: adjust (jump): +1.061654 sec

Seems a bit excessive!

[StephenB]

You could try a different NTP server.  I'm in the US and use 0.pool.ntp.org

[steveoelliott]

That seems to be much better... Clearly the netgear ones cause far more activity.