target.client.stop()
	}
	return nil
}

func (target *ElasticsearchTarget) checkAndInitClient(ctx context.Context) error {
	if target.client != nil {
		return nil
	}

	clientV7, err := newClientV7(target.args)
	if err != nil {
		return err
	}

	// Check es version to confirm if it is supported.
	serverSupportStatus, version, err := clientV7.getServerSupportStatus(ctx)
	if err != nil {
		return err