protected static TableNamespaceManager getTableNamespaceManager(MasterProcedureEnv env) {
    return env.getMasterServices().getClusterSchema().getTableNamespaceManager();
  }
Insert/update the row into the ns family of meta table.
@param env MasterProcedureEnv
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/AbstractStateMachineNamespaceProcedure.java