Implement Microservices Bulkhead pattern

[iluwatar]

Description

The Microservices Bulkhead pattern isolates critical system resources for each service or component so that failures or heavy load in one part of the system don’t cascade and degrade the entire application. By partitioning resources—often via separate thread pools or connection pools—you can ensure other services remain operational even if one service becomes overloaded or fails.

Key Elements

• Resource Isolation: Assigning dedicated resources (threads, memory, connections) to each service or subsystem.
• Fail-Fast / Degradation: If a service’s resources are maxed out, calls are quickly rejected or queued rather than flooding the rest of the system.
• Improved Resilience: Prevents one failing component from consuming all available resources and bringing down unrelated services.

References

1. Resilience Patterns in Microservices
2. Release It! by Michael T. Nygard (covers bulkheads and other stability patterns)
3. Java Design Patterns – Contribution Guidelines

Acceptance Criteria

• Create a new module or package named microservices-bulkhead (or similar).
• Provide a working example of isolating resources (e.g., dedicated thread pools) for different services or components.
• Demonstrate how the system continues to function under partial failure or overload scenarios.
• Include a README (or .md file) describing the pattern, use cases, and code walkthrough.
• Ensure the code follows repository standards (style, naming conventions) and passes all CI checks.

[omrajgure]

Hi @iluwatar 👋,

I’d like to contribute an implementation of the Microservices Bulkhead Pattern as described in the acceptance criteria. I plan to create a new module named microservices-bulkhead with examples demonstrating thread pool isolation and resilience under overload. Please let me know if you’d like me to proceed or if there are any additional guidelines I should follow before starting.

Thanks!

— Om Rajgure