Distributed Systems
2022

High-Performance Distributed Cache

Custom distributed caching solution with advanced consistency models and performance optimizations for high-traffic applications.

Go
Raft Consensus
gRPC
LevelDB
Docker
Kubernetes

Problem Statement

Traditional caching solutions struggle with consistency, performance, and scalability in distributed environments.

Solution Approach

Implemented a distributed cache with tunable consistency, automatic sharding, and intelligent data placement algorithms.

System Architecture

Gossip protocol-based cluster management, consistent hashing for data distribution, and multi-level caching hierarchy.

Technical Challenges & Solutions

Key Challenges

  • Maintaining consistency in distributed environments
  • Optimizing for both read and write performance
  • Handling network partitions gracefully
  • Implementing efficient data replication strategies

Outcomes Achieved

  • 10x improvement in cache hit rates
  • Sub-millisecond response times at scale
  • Successfully deployed in production serving 1M+ requests/second

Performance Metrics

< 1ms
Response Time
95%
Hit Rate
1M RPS
Throughput

Lessons Learned

  • The trade-offs between consistency and performance
  • The importance of monitoring and observability in distributed systems
  • Building systems that can evolve with changing requirements

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