BullMQ Reliability: Dead Letter Queues & Monitoring

[Cedarich]

Complexity Score: 200

Description

Improve the resilience of background jobs (Onchain, Verification, Notifications).

Requirements

• Configure removeOnFail and removeOnComplete policies.
• Implement a "Dead Letter Queue" logic for jobs that fail after all retries.
• Add a job monitoring endpoint/service to report queue health.
• Ensure OnchainProcessor correctly handles network timeouts and ledger congestion.

Tech Stack

• NestJS, BullMQ.

---

[nafsonig]

@nafsonig has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Let me professionally implement this task as soon as possible

ℹ️ Repo Maintainers: To accept this application, review their application or assign @nafsonig to this issue.

[drips-wave]

Congratulations, @nafsonig! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

🧑‍💻 @nafsonig: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊