@Override
  protected String getClusterKey(HBaseTestingUtil util) throws Exception {
    // TODO: VerifyReplication does not support connection uri yet, so here we need to use cluster
    // key, as in this test we will pass the cluster key config in peer config directly to
    // VerifyReplication job.
    return util.getClusterKey();
  }
We moved some of {@link TestVerifyReplicationZkClusterKey}'s tests here because it could take too
long to complete. In here we have miscellaneous.
hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/replication/TestVerifyReplicationAdjunct.java