In <[EMAIL PROTECTED]> Ask Bjørn Hansen <[EMAIL PROTECTED]> writes:

> I have thought of a few others things I'll try to improve the quality  
> of the zones typically used by themselves.  (And eventually if we  
> ever get "enough servers" the pool in general).  One of them is just  
> to make a "long term score" where you build the score much more  
> slowly and lose it much faster to filter out servers that are not  
> Very Stable.

I think a long-term score would be a very good idea, although I'm not
sure how it would be different than just raising the cut-off limit
that is currently used.  Raising the cut-off from 5 to 19 sounds
drastic, but really, it would only take 6 hours more to return to the
pool.  Raising it to 19.9 would take longer for a server to get back
into the pool and would probably be very similar to a "long-term"
rating that you are suggesting.

Maybe a long-term score should be based on simply whether the server
has qualified to be in the pool or not.  The short-term score would
determine if the quality is high enough to be in the pool right now,
but minor drops, and an occational dropping out of the pool even,
shouldn't change the long-term score much.


I do think long term stability is very important.  NTP configs are
something people often set once and forget.  My guess is that, on
average, they get changed only a couple of times per year at most.
Heck, my ntp configs haven't changed for almost a year now.


-wayne
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