Comment 26 for bug 1335323

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Robert P. Goldman (rpgoldman) wrote : Re: [Bug 1335323] Re: ASDF 3.1.x cache inhibits loading stuff on demand?

Faré wrote:
> I have no idea what "algorithm for computing the set of cache lines that
> are stale" you are talking about. Ask Zach, he's the one who seems to
> have systems that appear in the middle of a session — something I think
> is a bad idea.

I'm afraid I'm suffering a failure of vision here. I can't imagine an
error handler for a missing-component error that would *NOT* cause
systems to appear in the middle of a session. Can you help me out here?
 Is there a better strategy for recovering from a missing-component
condition? Should we instead be forcing system registration when
retrieving missing systems to avoid an inconsistent ASDF cache? E.g.,
groveling around installed directories to find all the ASDF files and
load them? Will that be more efficient than blowing away the cache?