如何提升媒体上传速度和成功率

import com.qcloud.vod.VodUploadClient;
import com.qcloud.vod.model.VodUploadRequest;
import com.qcloud.vod.model.VodUploadResponse;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class Main {
    public static void main(String[] args) throws Exception {
        // 并发数
        Integer threadNumber = 20;
        // 待上传的文件路径列表
        List<String> filePathList = new ArrayList<String>();

        // 添加待上传文件路径
        filePathList.add("/data/path1.mp4");
        filePathList.add("/data/path2.mp4");
        filePathList.add("/data/path3.mp4");

        // 创建线程池
        ExecutorService pool = Executors.newFixedThreadPool(threadNumber);
        // 创建上传Client
        VodUploadClient client = new VodUploadClient("your secretId", "your secretKey");

        // 并发上传
        for (String path : filePathList) {
            // 提交上传任务
            pool.submit(new UploadThread(client, path));
        }
    }
}

// 上传线程
class UploadThread implements Runnable {
    // 上传 Client
    private VodUploadClient uploadClient;
    // 文件路径
    private String filePath;

    public UploadThread(VodUploadClient uploadClient, String filePath) {
        this.uploadClient = uploadClient;
        this.filePath = filePath;
    }

    public void run() {
        VodUploadRequest request = new VodUploadRequest();
        request.setMediaFilePath(filePath);
        try {
            // 执行上传
            VodUploadResponse response = uploadClient.upload("ap-guangzhou", request);
            System.out.println(response.getFileId());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}