jodydonetti/ZiggyCreatures.FusionCache
ZiggyCreatures.FusionCache
FusionCache is a hybrid distributed caching library that coordinates local memory and distributed storage to balance access speed with global consistency. It functions as a resilient data access layer, utilizing a pluggable serialization framework to convert cached objects into various binary or text formats for compatibility across diverse storage environments.
The system maintains cluster consistency through a distributed cache synchronizer that propagates invalidations and state updates across multiple nodes via a shared messaging backplane. It improves reliability by serving stale cache data as a temporary fallback when primary data sources are unreachable and employs a circuit breaker to stop requests to failing distributed cache services.
Performance is managed through cache stampede protection, which blocks redundant concurrent requests for expired data, and background refresh cycles to minimize user latency. The library also includes tag-based cache invalidation, randomized expiration timing, and execution time limits for data loading methods.
Operational health is tracked via a telemetry-enabled cache that exports performance metrics and hit rates to monitoring systems. A fault-injection testing framework is included to introduce controlled errors into the caching layer to verify application recovery logic.
Features
- Hybrid Caching Layers - Coordinates local memory and distributed storage providers through a unified interface to balance speed and consistency.
- Stale Serving - Delivers expired cache entries as a temporary fallback when primary data sources are unreachable.
- Backplane Synchronization - Uses a messaging backplane to synchronize cache states and propagate invalidations across distributed application nodes.
- Distributed Cache Synchronizers - Propagates cache updates and invalidations across multiple application instances via a shared messaging backplane.
- Auto-Loading Caches - Automatically executes a loading method to populate the cache when a requested value is missing.
- Resilience Wrappers - Provides a resilient data access layer that manages transient failures through retry policies and background refresh cycles.
- Resilient Data Access Patterns - Maintains application availability during backend failures by serving stale cache data and automated fail-safe mechanisms.
- Cache Invalidation Tags - Groups cache entries with tags to enable the invalidation of all related data using a single command.
- Refresh-Ahead Caches - Implements proactive background refreshes of recently accessed entries to reduce user latency.
- Complex Data Serialization - Utilizes modular drivers to convert complex objects into various binary or text formats for storage compatibility.
- Stampede Mitigation - Implements request coordination during cache misses to prevent redundant backend load (cache stampedes).
- Fallback Caching Mechanisms - Handles cache errors using retry policies and fallback mechanisms to maintain system availability.
- Pluggable Serializers - Provides a pluggable interface for interchangeable serialization strategies to meet diverse storage environment requirements.
- Pluggable Serialization Frameworks - Offers a modular framework for converting cached objects into various binary or text formats for diverse storage environments.
- Request Collapsing - Ensures only one concurrent request fetches data for a missing key while others await the result.
- Distributed Resource Circuit Breakers - Prevents overloading failing distributed caches by stopping requests using a circuit-breaker pattern.
- Adaptive Refresh Strategies - Performs conditional data updates in the background to minimize latency and reduce processing load on data sources.
- Cache Performance Monitoring - Tracks hit ratios and system health through integrated telemetry to optimize data retrieval and identify bottlenecks.
- Internal Telemetry Monitors - Collects and exports internal performance metrics and hit rates via structured logging for health monitoring.
- Cache Performance Metrics - Exports performance telemetry and hit rate metrics to monitoring systems to track cache health.
- Caching - High-performance cache with distributed layer and fail-safe mechanisms.
