memcache is not cleared on "drush cc theme"

Confirmed.
drush cc doesn't clear memcache. I need to clear memcache from the admin UI.

Subscribing.

I thought I had this problem, but it turned out to be my sites minimum cache time.

If you clear though the admin, memcache will set a session variable so that it looks like things are cleared immediately (they are for the admin user). Drush will not do this as there is no session.

Setting my sites 'cache_lifetime' variable to 0 resolved the issue.

edit, bad idea

Please try the patch at #1103478: Skip some wildcard fetches to see if it fixes this issue for you.

Also #1134242: Review cache_lifetime behaviour..

Reopening issue and moving from Memcache module to Drush (I search for duplicates but did not find any).

The problem is that drush_cache_clear_theme_registry() does not go through cache_clear_all() but instead tries to delete the cache entries using SQL, but this fails if Memcache or some other cache handler is used.

Thanks ... Bonus points to anyone who upgrades our cache commands to be compatible with Drupal 8.

Looking at RTBC issues this morning, and I notice this one. I re-rolled the patch, but do not use memcache, so did not test.

Patch still works with Drupal 6 + Drush 5.7.

Patch looks good but needs to be ported to D8 as well which has an OO cache api.

OK, I'll fix this without holding folks hostage to do some D8 for us :). Committed to 5 and 6.