restatedev / restatedev/restate

Kafka subscriptions can be made multiple times for the same source and sink

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bug ingress_kafka user-feedback
Dominant language
Rust
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Forks
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Avg merge
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Merged PRs (30d)
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Description

It may make sense to have a sense check where if you're registering the source (ie topic) and same sink (ie sevice/method) as an existing subscription, we idempotently accept without making a new one. That is, unless we think theres a use case for having more than one.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the Kafka subscription registration entry point and tracing how source and sink pairs are stored. Determine whether repeated registration should be idempotent or support multiple subscriptions, then define the expected behavior and tests for duplicate source-and-sink pairs before making a change.

Written by the indexing model from the issue text.

Assessment

Tech stack
kafka, rust
Domain
distributed-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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