ntpdate deprecated

[Leandro David Cacciagioni]

Hi guys!!! Going around on the web today I have found that ntpdate is deprecated are you still using it on stemcells or is there any plan to move to ntpd?

Thanks,

Leandro.-

[Dmitriy Kalinin]

We still use it and have not prioritized it to update it. Are you seeing some unwanted results due to usage of ntpdate vs ntpd?

[Leandro David Cacciagioni]

Hi Dmitriy thanks for the fast answer and as a reply for your question I can say:

ntpd doesn't sync time periodically (as you need to do with ntpdate) , see here for more information (read the whole thing, it's all important. Short version: ntpd syncs the time and tells the system how fast it's drifting away from "true" time, the system then adjusts its clock frequency to properly track "true" time. Within a day most systems are tracking to within 5ms of the reference).

Absent an EXCELLENT reason you should not be mucking about with the way ntpd adjusts and disciplines your clock - these algorithms have been thoroughly tested and debugged, and given an adequate time reference will produce very small error rates. And I think that could be a great improvement in our stemcells (All of them, even those for AWS) to add ntpd in place of ntpdate.-

Thanks,

Leandro.-

[Wayne E. Seguin]

I agree with this assessment / suggestion.

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