If you want to use Memcached as cache system, you need to tweak its configuration.
/etc/memcached.conf and change (or add) those settings:
-m 64: this is the maximum of memory, in Mio, that memcached can use. Adapt to your liking (and to your server's memory)
-I 11m: this is the max size of a stored object in memcached. Use the
max_file_sizeset in your
lutim.confplus one (it stores the images with some metadata)
You can now go back to wiki's homepage.