The Real Bill questions

The Real Bill answers

• Redis PUB/SUB and high availability
• Redis Track Hits
• Redis SET with option, without expiry
• How does Leveldb compare with Redis or Riak or Tokyo Tyrant? [closed]
• Redis's huge files won't delete?
• Rails and Redis
• Scalable way of logging page request data from a PHP application?
• Redis: how to use it similar to multi-tables
• How to implement transaction with rollback in Redis
• Redis mimic MASTER/MASTER? or something else?