title: Redis sentinels in same servers as master/slave?
body: <p>I've been doing some reading on how to use Redis Sentinel, and I know it's possible to have 2 or more sentinels, and load balance between them when calling from the client side.</p>
  
  <p>Is it good practice to have these 2 sentinels in the same server as my master + slave? In other words, have 1 sentinel in the same physical server as master, and another in same physical server as slave?</p>
  
  <p>It seems to me if the master server dies, the sentinel in the slave will simply promote the slave to a master. if the slave server dies, it doesn't matter because the master is still up. </p>
  
  <p>Am I missing something? What are the downsides? </p>
  
  <p>I rather have the sentinels be in the same physical server as the master/slave to reduce latency.</p>