Head-scratching assertion error when consuming remote files

[PabloReszczynski]

Recently I've been getting some exceptions when consuming large amounts of data from remote urls using undici.

The pattern I use looks something like this:

const client = new RetryAgent(new Pool(...), { maxRetries: 3});
const { body } = await client.request({ method: "GET", highWatermark: 1024 * 1024 });
return pipeline(body, aBunchOfTransforms, aWriter)

But then I get the following error: AssertionError: false == true which comes from lib/api/readable.js.

My question then is, in which cases stream[kConsume] is not truthy? Is this some kind of user error, or is the library's fault?
Would it make sense to throw a more informative error instead of just an assertion error?

[mcollina]

Yes, that'd be the library's fault. I'd recommend you to open an issue with a reproduction.

[PabloReszczynski]

It would be helpful to understand what is the meaning of that assertion, as I don't have a way to easily reproduce the error. It just happens sporadically, and the only way I noticed was via Sentry.

[metcoder95]

It might be when the Stream is locked or already disturbed and its being tried to be consumed (which seems to be susceptible to fall into that mode when using pipeline as it tries to read/consume assuming the stream is in the right state).

but without a
Minimum Reproducible Example might be hard to assess.