Implement RetryPolicy for 5xx RPC errors

[Emrys02]

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RPC nodes may occasionally return 5xx Server Error responses due to temporary overloads or internal failures. Implementing a robust retry policy with exponential backoff will improve the resilience of the client.

Implementation Guidelines Key Files: crates/core/src/rpc/client.rs.
Expectations What done looks like: The client automatically retries requests that receive a 5xx status code, following an exponential backoff strategy before giving up.

For any question, reach me on Discord: emry_ss

[Guddy1-tech]

@Guddy1-tech has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

I believe i can solve this issue

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[Simongodw]

@Simongodw has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Good day,
You should consider assigning me this issue because I can implement a robust and production-safe RetryPolicy specifically tuned for transient 5xx RPC failures, ensuring improved system resilience without introducing request storms or duplicate side effects.

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[Sulex45]

@Sulex45 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi I’d love to work on this

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[0xElyte]

@0xElyte has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

I would love to resolve this 💯

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[boalambo]

@boalambo has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

i would like to work on this issue

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[Clement-coder]

@Clement-coder has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi, I’m a full-stack software and Rust engineer with experience in resilient RPC clients and distributed systems.

I’ll implement a RetryPolicy for 5xx RPC failures in crates/core/src/rpc/client.rs, adding exponential backoff with a safe retry cap to improve reliability under node instability.

Specific approach: intercept HTTP 5xx responses in the RPC client layer, apply exponential backoff with jitter to avoid thundering herd issues, and ensure retries are bounded to prevent infinite loops or request hangs. I’ll also keep behavior configurable and ensure existing success paths remain unchanged.

Robust, fault-tolerant, and production-safe.

I can start immediately and deliver quickly.

Would love to be assigned.

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