mperham/sidekiq — comment on commit 1a028c4a2f41ef7458e34aa634bba0575cc4127e
File: lib/sidekiq/middleware.rb line 94
By mperham:

You should be adding an MD5 hash of the msg, not the msg itself. Also, is it possible for a message to be added to the set but never removed? I don't want an ever-growing set in Redis - this is effectively a memory leak.