private void loadNamespaceIntoCache() throws IOException {
    if (shouldLoadFromMeta()) {
      loadFromMeta();
    } else {
      loadFromNamespace();
    }

  }
This is a helper class used internally to manage the namespace metadata that is stored in the ns
family in meta table.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/TableNamespaceManager.java