@Override
  public void dropCatalog(String catName) throws TException {
    client.drop_catalog(new DropCatalogRequest(catName));
  }
Swaps the first element of the metastoreUris array with a random element from the
remainder of the array.
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java