上传接口并发时很多请求总是超时或者400

[CNXiaozhiy]

上传接口并发时很多请求总是超时，这意味着并发数为10的时候会导致等待10 * 60s = 10m，导致上传速度急速下降。3小时的视频可以上传3小时（这不应该出现在已经使用了并发上传的情况下）

我不知道为什么哔哩哔哩会直接不响应我的put请求，导致程序一直等待，直到超时后重试。
甚至重试后仍然会超时，然后程序又会继续递归重试

代码太长，不好一并展示，是使用的pLimit和axios库实现的并发上传，并发数为10。

关键代码：

const limit = pLimit(10); // 并发数为 10
const uploadPromises = [];

const createTask = (i: number) =>
  limit(async () => {
    await this.uploadChunk(
      i,
      upload_url,
      auth,
      upload_id,
      totalChunks,
      video_file_path,
      video_file_size
    );
  });

for (let i = 0; i < totalChunks; i++) {
  uploadPromises.push(createTask(i));
}

await Promise.all(uploadPromises);

// this.uploadChunk
private async uploadChunk(
    chunkIndex: number,
    upload_url: string,
    auth: string,
    upload_id: string,
    totalChunks: number,
    video_file_path: string,
    video_file_size: number
  ) {
    const start = chunkIndex * this.CHUNK_SIZE;
    const end = Math.min(start + this.CHUNK_SIZE, video_file_size);
    const chunkSize = end - start;

    const chunk = fs.createReadStream(video_file_path, { start, end });

    const params = new URLSearchParams({
      partNumber: `${chunkIndex + 1}`,
      uploadId: upload_id,
      chunk: `${start}`,
      chunks: `${totalChunks}`,
      size: `${chunkSize}`,
      start: `${start}`,
      end: `${end}`,
      total: `${video_file_size}`,
    });

    try {
      const resp = await request({
        method: "PUT",
        url: `${upload_url}?${params.toString()}`,
        headers: {
          Origin: "https://member.bilibili.com",
          Referer: "https://member.bilibili.com/",
          Connection: "keep-alive",
          "Content-Type": "application/octet-stream",
          "Content-Length": chunkSize,
          "X-Upos-Auth": auth,
          "No-Throttleo": "1",
        },
        data: chunk,
        maxBodyLength: Infinity,
        timeout: 30000,
      });

    } catch (e) {
      //开始递归重试
      await this.uploadChunk(
        chunkIndex,
        upload_url,
        auth,
        upload_id,
        totalChunks,
        video_file_path,
        video_file_size
      );
    }
  }

求解！

[SessionHu]

https://socialsisteryi.github.io/bilibili-API-collect/docs/creativecenter/upload.html#上传接口
预上传接口会给你返回一个 threads 并发数, 你的并发数超过了限制, 服务器当然就不管了

[CNXiaozhiy]

文档里是写了，但是我实际请求的时候却不存在啊？

返回体：
{
OK: 1,
auth: 'ak=1494471752&cdn=%2F%2Fupos-cs-upcdnbldsa.bilivideo.com&os=upos&sign=xxxxxxx',
biz_id: 29765994056,
chunk_retry: 10,
chunk_retry_delay: 3,
chunk_size: 10485760,
endpoint: '//upos-cs-upcdnbldsa.bilivideo.com',
endpoints: [
'//upos-cs-upcdnbldsa.bilivideo.com',
'//upos-cs-upcdntx.bilivideo.com',
'//upos-cs-upcdnbda2.bilivideo.com'
],
expose_params: null,
put_query: 'os=upos&profile=ugcfx%2Fbup',
timeout: 1200,
uip: '2409:8a62:1212:6901:8c6b:ef4a:5333:xxxx',
upos_uri: 'upos://ugcfx2lf/n250503sa3g3g4vy47unrq3vj6zwoxxx'
}

[SessionHu]

你是怎么请求预上传接口的, 如果还是不返回那你看看就用文档给的 3 试试

[CNXiaozhiy]

真是逆天了，我单线程上传都要超时，每个请求都要超时重试，*的上传10多个小时

[CNXiaozhiy]

但绝对不是网络的问题，要么是哔哩哔哩抽风，要么是我请求没构造对