TODO

   1 - GETSET
   2 - Fix pure-PHP lib for the new protocol
   3 - keys expire
   4 - sunion ssub
   5 - network layer stresser in test in demo
   6 - maxclients directive
   7 - check 'server.dirty' everywere
   8 - replication automated tests
   9 - an external tool able to perform the 'difference' between two Redis servers. It's like 'diff', but against Redis servers, and the output is the set of commands needed to turn the first server into the second, suitable to be sent via netcat.
  10
  11    $ ./redis-diff 192.168.1.1 192.168.1.2 > diff.txt
  12    $ cat diff.txt | nc 192.168.1.1 6379
  13    $ ./redis-diff 192.168.1.1 192.168.1.2
  14    $ # No output now the servers are identical
  15
  16 This command should be smart and don't use too much memory, that is, take two connections at the same time against the two servers and perform the comparison key by key. Probably the initial "KEYS *" is unavoidable.
  17
  18 - objects sharing, "objectsharing yes", "objectsharingpool 1024"