Memcacheliked is a server created using the Diesel framework which should expose a service that looks like original memcached, but uses a custom backend implementation. Its goal is not high performance (never tested it from that perspective), but rather to:

  • provide a drop-in replacement for testing different scenarios in 3rd party apps
  • provide an alternative data source for applications that can already talk to memcached


For a short example of how to implement a storage behaving like in-memory memcached, look at memcacheliked/ It provides the standard set/get/delete operations. For the specifics check memcacheliked/ Options should match those defined by the memcached protocol.

Available decorators / expected function signatures are as follows:

def get_function(self, command_name, *keys):

def set_function(self, command_name, key, flags, exptime, value, *opts):

def del_function(self, command_name, key, *opts):