datafusion-contrib / datafusion-contrib/datafusion-distributed
retry tasks on error
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- Dominant language
- Rust
- Stars
- 139
- Forks
- 67
- Avg merge
- 3d 1h
- Merged PRs (30d)
- 35
Description
If a task fails, it currently fails the whole query. It would be good to support some class of retries. Here's some ideas:
- retry tasks that have not emitted a row yet (ex. if a task is rejected due to load balancer)
- retry leaf tasks only (ex. so the retry only applies to an isolated part of the plan)
Contributor guide
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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
The issue names no files, tests, or entry points. Trace how task errors currently fail a query, then compare the proposed retry scopes: tasks that have not emitted a row and leaf tasks only. Done means an agreed retry design is implemented with coverage for both cases and the whole-query failure behavior remains defined.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- distributed-systems
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100