@Override
  protected void rollbackState(
      ConfigNodeProcedureEnv configNodeProcedureEnv, NotifyRegionMigrationState state)
      throws IOException, InterruptedException, ProcedureException {}
A procedure that notifies all DNs of the ongoing region migration procedure.
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/region/NotifyRegionMigrationProcedure.java