[Apt-cacher-ng-users] Limit cache size and eviction in apt-cacher-ng

[Octavian Hornoiu]

For now we're just using the squid unmount partition and wipe strategy. :-P
On Jul 13, 2016 10:46 PM, "Eduard Bloch" <edi at gmx.de> wrote:

> Hallo,
> * Octavian Hornoiu [Wed, Jul 13 2016, 01:54:03PM]:
> >    Is there a way to limit the cache size due to space constraints?
> >    Is there a way to evict packages from the cache to reduce the total
> cache
> >    size below a certain limit?
> >    Thanks!
> >    Octavian
>
> At the moment, no. But I am well aware of this trouble since and there
> are some ideas on how to design a cleanup strategy.
>
> We hit the classic problem here - how to decide which packages to keep
> and which to throw away?
>
> ATM I tend to create some kind of "importance rating" which would be
> calculated from the number of downloads of a certain file and the age of
> that downloads and the file size. The factors in this formula would be
> customizable. In addition, there could be a classic bin-packing problem
> solver that estimates how to remove bigger files to preserve smaller
> files. So, by the end, a bit latex font package might be removed if only
> used by one person in order to keep a dozen of smaller packages that are
> likely to be used by multiple people.
>
> But eventually all this might be just reading tea leaves. Especially
> when a popular package has been renamed, the algorithm needs to identify
> the predecessor and migrate the rating accordingly.
>
> Regards,
> Eduard.
>
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