[ntp:questions] question regarding NTP configuration for clusters, and "cluster time" stability
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Null at BlackList.Anitech-Systems.invalid
Fri Nov 20 21:56:06 UTC 2009
rotordyn at yahoo.com wrote:
> Look at it this way: We produce a system (in the form
> of a cluster) that works today, but that can drift away
> from UTC since it currently doesn't accept any external
> time reference. That drift isn't a huge issue, but over
> the multi-year lifespan of the hardware, can be significant.
> If we allow the use of external NTP servers, we now have
> opened up what was a closed system, and must prevent that
> new input source from causing instability. ...
> An alternate approach would be to make our cluster
> software resilient to intra-node time variations, but it
> was deemed simpler to use NTP to have the cluster accept
> an external UTC source.
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