@Override
  public boolean executeFromValidate(ConfigNodeProcedureEnv env) throws SubscriptionException {
    LOGGER.info("AlterConsumerGroupProcedure: executeFromValidate, try to validate");

    validateAndGetOldAndNewMeta(env);
    return true;
  }
This is only used when the subscription info lock is held by another procedure.
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/procedure/impl/subscription/consumer/AlterConsumerGroupProcedure.java