clearing anidb queue causes ridiculous HDD usage

What steps will reproduce the problem?
1. queue a lot of actions for anidb worker (eg: move anime to another folder. 
In fact, why does it even require to get file data from anidb again?)
2. attempt to clear queue

One would expect queue to be emptied in a reasonable time. Actions should not 
be removed from queue individually - they are stored in a damn database, it's 
optimized for manipulating data in bulk!
Instead, extreme mysql hdd activity suggests actions are removed one by one.

Original issue reported on code.google.com by enl...@gmail.com on 16 Jun 2014 at 4:58

jon1caleb2 / jmm

clearing anidb queue causes ridiculous HDD usage #524