public static void setUseDistributedCluster(Configuration conf) {
    conf.setBoolean(IS_DISTRIBUTED_CLUSTER, true);
    System.setProperty(IS_DISTRIBUTED_CLUSTER, "true");
  }
Sets the configuration property to use a distributed cluster for the integration tests. Test
drivers should use this to enforce cluster deployment.
hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestingUtility.java