prefetch hangs on a canceled stream
Open
Nobody has claimed this yet.
bug
- Dominant language
- Scala
- Stars
- 2.5k
- Forks
- 636
- Avg merge
- 2d 4h
- Merged PRs (30d)
- 7
Description
fs2 version 3.10.2
this code does not terminate:
Stream.eval(IO.canceled).prefetch.compile.drain
expected behavior: prefetch should not change execution semantics, at least not so much as to prevent termination
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the reported Stream.eval(IO.canceled).prefetch.compile.drain reproduction in fs2 3.10.2 and inspect the prefetch entry point. Trace cancellation through prefetch and verify that the stream terminates without changing the execution semantics described in the issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- stream-processing
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100