title: Mnesia Clustering
body: <p>If I am clustering 2 nodes together, from my experimenting and reading up online I understand that Node A will be like a "master" node and Node B will copy the tables over if I want them to.  (Otherwise it will just access them remotely.) </p>
  
  <p>What happens though if Node B goes down?  Does it just recopy the data that's been changed since it was last up?</p>
  
  <p>Also what happens if Node A goes down.  Is Node B still usable?  If so, if data is changed on Node B, does Node A copy it over to itself?  My understanding so far is that Node A doesn't care about what Node B says, but someone please tell me I'm wrong.  </p>