Phase 8.1: Implement Timeout Policies and Resilience Testing#154
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Phase 8.1: Implement Timeout Policies and Resilience Testing#154
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- Add configurable timeout values for HTTP, database, and broker operations - Support pessimistic and optimistic timeout strategies - Provide TimeSpan properties for easy policy integration Related to #109
- Create timeout policies for HTTP, database, and broker operations - Support both pessimistic and optimistic timeout strategies - Add comprehensive logging for timeout events - Include timeout duration and strategy in logs Related to #109
- Add CreateCompleteHttpResiliencePolicy with timeout + circuit breaker + retry - Add CreateCompleteDatabaseResiliencePolicy with full policy stack - Add CreateCompleteBrokerResiliencePolicy with timeout support - Maintain existing two-layer policies for backward compatibility - Wrap policies in correct order: Timeout (outer) -> Circuit Breaker -> Retry (inner) Related to #109
- Add Resilience:Timeout section with HTTP, database, and broker timeouts - Configure pessimistic timeout strategy as default - Set appropriate timeout values: HTTP 30s, Database 10s, Broker 5s Related to #109
- Register TimeoutConfiguration from appsettings - Add complete wrapped policies with timeout + circuit breaker + retry - Maintain backward compatibility with existing two-layer policies - Update HTTP resilience policy factory to support complete policies Related to #109
- Add tests for retry on transient failures - Add tests for circuit breaker opening after threshold - Add tests for timeout on slow operations - Add tests for combined policy interaction - Use WebApplicationFactory for integration testing Related to #109
- Add database intermittent failures scenario (30% failure rate) - Add database prolonged outage scenario - Add broker slow responses scenario - Add network partition simulation - Add high load with varying failure rates - Measure success rates and performance impact Related to #109
- Add baseline benchmark without policies - Add benchmarks for individual policies (retry, circuit breaker, timeout) - Add benchmark for complete policy stack - Use BenchmarkDotNet with memory diagnostics - Measure overhead for each resilience layer Related to #109
- Document all implemented resilience policies - Explain timeout, retry, and circuit breaker patterns - Describe policy combination and wrapping order - Provide configuration examples - Add monitoring and health check information - Include testing strategy overview Related to #109
- For HTTP, wrap timeout with ExecuteAsync delegate pattern - Use Policy.WrapAsync only for typed policies (circuit breaker + retry) - Apply timeout as outer wrapper around the wrapped policy - Maintain correct wrapping order: timeout -> circuit breaker -> retry Fixes build error CS1503
- Register CompleteHttpResiliencePolicy instead of AsyncPolicyWrap<HttpResponseMessage> - Update factory to return the new wrapper type - Maintain correct usage pattern for HTTP resilience with timeout Related to #109
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Description
Implements comprehensive timeout policies and resilience testing for Phase 8.1.
Changes
Core Implementation
Testing
Documentation
Policy Wrapping Order
Timeout (outer) → Circuit Breaker → Retry (inner) → Operation
Acceptance Criteria
Closes #109