I use memcache as cache driver and I noticed that my app does not see \Cache::set('key', $value); saved in the task. When I try to read it from the app controller level the \Cache::get('key') is not set.
Thanks. The environment was setup ok. The issue was my Google App Launcher for local development. The web app is using GAE implementation of memcached and CLI php regular PHP memcached extension, so they are completely different memcache implementations.
Sorry for taking up your time, but good know tip to build knowledge base ;)