title: Redis - Promoting a slave to master manually
body: <p>Suppose I have [Slave IP Address] which is the slave of [Master IP Address].</p>
  
  <p>Now my master server has been shut down, and I need to set this slave to be master MANUALLY (WITHOUT using sentinel automatic failover, WITH redis command).</p>
  
  <p>Is it possible doing this without restarting the redis service ? (and losing all the cached data)</p>