OL: Interacting with memcached

On any host:

$ cd /olsystem/etc
$ . /opt/openlibrary/venv/bin/activate
$ python

in python:

>>> import yaml
>>> import memcache
>>> y = yaml.safe_load(open('openlibrary.yml'))
>>> mc = memcache.Client(y['memcache_servers'])

where:

>>> y['memcache_servers']
['ol-mem0:11211', 'ol-mem1:11211', 'ol-mem2:11211']

-: to GET the memcache entry:

>>> mc.get('ia.get_metadata-"houseofscorpion00farmrich"')

-: to DELETE a memcached entry:

>>> mc.delete('ia.get_metadata-"houseofscorpion00farmrich"')

[ref: http://dev.blog.archive.org/2014/02/14/manually-deleting-stale-cache-entries-from-ol-memcache]