In Django, how to clear all the memcached keys and values?

Question

I don't want to restart the memcached server!

Gamez

for what task it can be useful? – Peterman

...or if you memcached is serving several applications and you do not want to destroy everything at once! – Maypole

Answer 1

from django.core.cache import cache
cache._cache.flush_all()

Also see this ticket, it has a patch (that I haven't tested) to flush any type of cache backend: http://code.djangoproject.com/ticket/11503

Italianate

For anyone who needs it, the cache lib is located in django.core.cache. So to run the command above, you need to import cache from django.core.cache import cache – Houdan

I have CACHE_MIDDLEWARE_ALIAS pointing to a nondefault memcached cache but the command still tries to clear default and fails with AttributeError: 'FileBasedCache' object has no attribute '_cache' – Epicanthus

These days, you can use from django.core.cache import cache; cache.clear() – Thurlow

Answer 2

And an one-liner from console:

echo "from django.core.cache import cache; cache._cache.flush_all()" | ./manage.py shell [--settings=myapp.settings_live]

Formosa

Answer 3

An easiest and fastest way:

echo flush_all > /dev/tcp/localhost/11211

Serrato