Failed to execute 'send' on 'RTCDataChannel': RTCDataChannel send queue is full

Author: glitterlipCreated Jul 23, 2022Updated Nov 19, 2024

What version of this package are you using? 9.11.1 What operating system, Node.js, and npm version? node v16.15.0 npm 8.5.5 macOs 12.4 What happened? I am using this package to send files. When file size is small everything is ok. But when I send a 240Mb file, after 28mb was received ,an Unhandled Rejection (OperationError): Failed to execute 'send' on 'RTCDataChannel': RTCDataChannel send queue is full error happened. Then I change the code to

while (offset < filesize) {
      const chunk = await readChunk(offset)
      if (peer._channel.bufferedAmount >= peer._channel.bufferedAmountLowThreshold) {
        
        peer._channel.onBufferedAmountLow = () => {
          peer.send(chunk);
          peer._channel.onBufferedAmountLow = null;
        };
      } else {
        peer.send(chunk);

      }
    }

this time it just stuck forever after transfer >80Mb data.

while (offset < filesize) {
      const chunk = await readChunk(offset)
      if (peer._channel.bufferedAmount >= peer._channel.bufferedAmountLowThreshold) {
        await new Promise((resolve) => {
          setTimeout(() => {
            peer.send(chunk);
            resolve();
          }, 50);
        });
      } else {
        peer.send(chunk);
      }
    }

use promise and settimeout fix the problem ,but I have to wait and dont know 50ms is the proper duration

What did you expect to happen? how to deal with `RTCDataChannel send queue is full``

Are you willing to submit a pull request to fix this bug?