celluloid

Recently I have update my rails version to 4.2.3 and ruby version to ruby-2.2.3 . After that when I do bundle it gives following error: $ bundle Fetching gem metadata from http://rubygems.org/.......... Fetching version metadata from http://rubygems.org/... Fetching dependency metadata from http://rubygems.org/.. Could not find celluloid-0.16.1 in any of the sources Could you help me? Version 0.16.1 of the celluloid gem was yanked and is not available anymore. You will need to downgrade to 0.16.0 or upgrade to 0.17.x . Run: bundle update celluloid 来源： https://stackoverflow.com/questions

Stumble upon reading ZeroMQ FAQ about a Thread safety. My multi-threaded program keeps crashing in weird places inside the ZeroMQ library. What am I doing wrong? ZeroMQ sockets are not thread-safe. This is covered in some detail in the Guide. The short version is that sockets should not be shared between threads. We recommend creating a dedicated socket for each thread. For those situations where a dedicated socket per thread is infeasible, a socket may be shared if and only if each thread executes a full memory barrier before accessing the socket. Most languages support a Mutex or Spinlock