Built from First Principles.
Engineered from scratch for multi-threaded in-memory data processing. No inherited technical debt, no runtime overhead, no compromises.
Designed for Predictable Performance
FlashKey's architecture eliminates the bottlenecks that limit traditional in-memory stores.
Multi-Threaded Event Loop
Each worker thread runs its own epoll/kqueue event loop, processing commands in parallel without contention.
Per-Thread Memory Arenas
Thread-local memory allocation eliminates lock contention and provides predictable allocation performance.
Lock-Free Data Structures
Concurrent hash tables and skip lists enable parallel reads and writes without mutex overhead.
Integrated Storage Engine
MVCC snapshots and AOF persistence built directly into the core — no external process coordination.
From Request to Response
Every operation follows a deterministic path optimized for minimal latency.
Connection Accept
Incoming connections distributed across worker threads via SO_REUSEPORT.
Command Parsing
RESP2/RESP3 protocol parsing with zero-copy buffer management.
Execution
Command executed on thread-local data structures with MVCC isolation.
Response
Result serialized and sent back via the same worker thread's event loop.
Scale Horizontally, Transparently
FlashKey cluster distributes data across nodes using Redis-compatible hash slot allocation.
Master Nodes
Primary data holders with automatic hash slot assignment. Each master handles a subset of the 16,384 hash slots.
Replica Nodes
Real-time synchronized copies for read scaling and automatic failover. Each master can have multiple replicas.
Sentinel
Integrated monitoring and automatic failover coordination. Detects master failures and promotes replicas without manual intervention.
Purpose-Built Technology Choices
Every component chosen for performance and reliability.
Ready to See the Architecture in Action?
Our engineering team will walk you through the design decisions.