[Resilience & Error Handling] Dynamic Secondary Horizon Nodes Pool Updating

[0xVida]

Description:
Periodically query live SDF validator lists to dynamically refresh the secondary Horizon failover endpoints.

Requirements and Context:

CRITICAL CONTEXT: All code changes and execution steps for this issue must happen strictly within the fluid-server folder of the repository. Ensure you are working inside the fluid-server/ directory before beginning.

The Fluid platform requires professional-grade resilience & error handling standards. This issue focuses on dynamic secondary horizon nodes pool updating to ensure the system is production-ready and resilient.

Acceptance Criteria:

• Implement dynamic secondary horizon nodes pool updating logic in the fluid-server package
• Ensure full test coverage (unit and integration)
• Verify compliance with internal design and security standards
• Validate Dynamic Secondary Horizon Nodes Pool Updating handles edge cases correctly

Deliverables:

• Code implementation in fluid-server/src
• Updated documentation in /docs
• Verification report with terminal output/screenshots

NOTE: This issue will NOT be reviewed or approved without functional screenshots or verified terminal output where applicable!

Suggested Execution:

1. Research existing implementation in fluid-server
2. Draft a technical design for Dynamic Secondary Horizon Nodes Pool Updating
3. Execute implementation and verify against local environment
4. Run full test suite to ensure no regressions

Guidelines:

• Maintain consistency with the existing TypeScript/Rust coding standards.
• Prioritize performance and memory efficiency.

Example Commit Message:

feat: dynamic-secondary-horizon-nodes-pool-updating

[TheShnider]

@TheShnider has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi. I have reviewed this issue and would like to work on it.

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

[Hahfyeex]

@Hahfyeex has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi team, I would love to work on this issue

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

[jethrojohn739-max]

@jethrojohn739-max has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i would like to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @jethrojohn739-max to this issue.

[drips-wave]

Congratulations, @Hahfyeex! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Hahfyeex: 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 🌊