mylake: Thread-Safety

2016年4月30日星期六

Rack::Lock => make sure thread safe

def threadsafe!
  @preload_frameworks = true
  @cache_classes      = true
  @dependency_loading = false
  @allow_concurrency  = true
  self
end

sometimes on production rails will remove Rack::Lock => because Web server will handle it => unicorn, Fusion Passenger => single thread

puma => multi thread