Designing a High-Performance Cache in Java

[ghost]

Question:
How would you design a distributed caching system?

[shivrajcodez]

Clustered cache nodes → scale horizontally
Partitioning → consistent hashing (distribute keys)
Replication → high availability (master–replica)
Eviction policy → LRU / LFU
TTL support → auto-expire data
Cache strategies → cache-aside, write-through, write-back
Consistency → eventual / strong (based on need)
Hot key handling → sharding / replication
Failure handling → node failover, rebalancing
Use tools like Redis or Memcached