private void shutDownMiniClusters() throws Exception {
    int numClusters = utilities.length;
    for (int i = numClusters - 1; i >= 0; i--) {
      if (utilities[i] != null) {
        utilities[i].shutdownMiniCluster();
      }
    }
    miniZK.shutdown();
  }
Tests that base replication peer configs are applied on peer creation and the configs are
overriden if updated as part of updateReplicationPeerConfig()
hbase-server/src/test/java/org/apache/hadoop/hbase/replication/TestMasterReplication.java