title: how do i know if nodetool repair is finished
body: <p>I have a 2 node apache cassandra (2.0.3) cluster with rep factor of 1.  I change rep factor to 2 using the following command in cqlsh</p>
  
  <pre><code>ALTER KEYSPACE "mykeyspace" WITH REPLICATION =   { 'class' : 'SimpleStrategy', 'replication_factor' : 2 };
  </code></pre>
  
  <p>I then tried to run recommended "nodetool repair" after doing this type of alter.</p>
  
  <p>The problem is that this command sometimes finishes very quickly.  When it does finishes like that it will normally say 'Lost notification...' and exit code is not zero.</p>
  
  <p>So I just repeat this 'nodetool repair' until it finishes without error.  I also check that  'nodetool status' reports expected disk space for each node.  (with rep factor 1, each node has say about 7GB each and I expect after nodetool repair that each is 14GB each assuming no cluster usage in the mean time)</p>
  
  <p>Is there a more correct way to determine that 'nodetool repair' is finished in this case?</p>