datafusion-contrib / datafusion-contrib/datafusion-distributed
Improvement: Visualize physical worker assignment in graphviz plans
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- Dominant language
- Rust
- Stars
- 139
- Forks
- 67
- Avg merge
- 3d 1h
- Merged PRs (30d)
- 35
Description
We currently show partition colors in graphviz plans—next, it would be helpful to indicate which physical worker each task runs on. This would let us spot co-located tasks and reduce unnecessary networking. It also connects to a potential optimization: avoiding serialization/deserialization when shuffling data between stages on the same worker.
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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
Start by tracing Graphviz plan generation and the existing partition-color visualization, then find where physical worker assignments for tasks are represented. Done means generated plans visibly distinguish worker placement so co-located tasks can be identified; the issue also mentions a possible serialization optimization that may need separate scope clarification.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- distributed-systems
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 42/100