Got a sharp mind for systems design and a knack for clever architecture? Join our latest community contest and take a shot at solving a real-world problem in config management — with an Apple iPad up for grabs!
Challenge:
Smart Cache Invalidation for JSON Tree Configs — Design a PoC that implements node-level cache invalidation in a multi-tenant architecture. Think sharp, build smart, and show us your engineering mojo.
Key Dates:
Register by: 10 June 2025 Submit by: 30 June 2025
Prize: A brand-new Apple iPad for the best solution!
Bonus points for real-time updates, smart registries, and visualizations.
Let the smartest cache win!
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Bounty Challenge: Smart Cache Invalidation for JSON Tree Configs
The Problem
In systems where configs are structured as a JSON tree, each node (e.g. pricing.rules.discount) acts as an independent unit. Services often depend on specific nodes or subtrees, but today’s cache invalidation strategies still treat configs as monoliths — leading to full cache refreshes even when only one small config changes.
This leads to:
Cache cold starts across unrelated services
Slower response times post-deployment
Wasted infra usage and increased load on config/data layers
The Challenge
Build a Proof of Concept (POC) that implements targeted cache invalidation in services based on fine-grained, node-level config changes in a multi-tenant JSON tree structure.
Core Requirements
Fine-Grained Dependency Tracking
Services must be able to declare interest in specific config paths (e.g. pricing.rules.discount) or entire subtrees (e.g. pricing.rules.*).
Targeted Cache Invalidation
Only invalidate the portion of the cache directly affected by the config change. All unaffected cached values must remain warm.
Hot Reloading
After a config change, services must automatically update their local cache or state without restart.
Hierarchical Subscription Support
Services can subscribe to config subtrees so that a change in any child node triggers an update (e.g., ui.labels.language.* updates if ui.labels.language.en changes).
Multi-Tenant / Namespace Awareness
Config changes must be scoped to tenants. A config change for Tenant A should only affect Tenant A’s services — not Tenant B.
Register by: 10 June 2025
Submit by: 30 June 2025
Prize: A brand-new Apple iPad for the best solution!
Bonus points for real-time updates, smart registries, and visualizations.
Bounty Challenge: Smart Cache Invalidation for JSON Tree Configs
The Problem
Cache cold starts across unrelated services
Slower response times post-deployment
Wasted infra usage and increased load on config/data layers
The Challenge
Core Requirements
Sample Config Tree
Tech Stack is Yours
