On Mon, 06 Jul 2009 16:13:17 -0400
"Rosenbaum, Larry M." <rosenbau...@ornl.gov> wrote:

> Has anybody considered revising the Bayes expiration logic?  Maybe
> it's just our data that's weird, but the built-in expiration logic
> doesn't seem to work very well for us.  Here are my observations:
> 
> There's no point in checking anything older than oldest_atime.  For
> this value and older, zero tokens will be expired.  The current
> estimation pass logic goes back 256 days, even if the oldest atime is
> one week and the calculations have already started returning zeroes.

And there's another problem there. If deleting tokens over 256
days would delete more than the target number, then no tokens at all
are deleted. If the database was trained from historic corpora, then
most of the tokens could be older, and in the worst case, the database
could grow to 175% of it's configured maximum.

Reply via email to