All,
I've been working the last 24 hours or so on improving the ForeignAPI code that
Brion committed a little while back. I've implemented some rather
effective caching
that has gotten thumbs and remote description pages cached locally (by setting
$wgForeignFileRepos['useLocalCache'] to true). Also,
$wgForeignFileRepos['localCacheExpiry'] is used to set the explicit
expiry time for
local copies of thumbs/description pages. There's only two things left
really that
I see need doing:
1) One last Http::get().is still used on every request to fetch the
remote image
metadata. On the one hand, it would be nice to cache this, as then we could
eliminate the last Http::get() request. At the same time, having the
last updated
timestamp would be helpful for knowing if we need to force-purge the caches
because the image has been updated. I'm leaning towards the former, as
I'd rather
make action=purge force a recache.
2) Thumbs are still generated by the remote wiki. While I don't like
idea of the server
load being put on them, Brion reminded me that local wikis might not be able to
transform the same mediatypes the remote wiki can, so getting the
thumb from there
is probably safer.
Thanks for any input people can give :-)
-Chad