spring-projects / spring-projects/spring-modulith

Distribution of persisted event processing

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Dominant language
Java
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Description

As discussed on yesterdays JUG in Münster:

Modulith applications may be scaled horizontally to handle load. Decoupling of functional gravity via events may then cause a new bottleneck when scheduled reprocessing of failed handlers can only be executed by a single instance (e.g. using ShedLock).

Contributor guide

Open the contributing guide

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 with the Spring Modulith events reference linked in the issue and review the ShedLock example to understand the current single-instance scheduled reprocessing constraint. Clarify the intended distribution model for failed event-handler processing and define how horizontal scaling should be validated.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, spring-boot
Domain
backend, 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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