Everything You Need.

Multi-threading, encryption at rest, active replication, MVCC snapshots, 442 commands — all in a single binary with zero external dependencies.

N
Parallel Workers
Linear
Core Scaling
0
GIL Bottlenecks
Thread Status
Worker Threads Active
Lock-Free Structures
Per-Thread Memory Arenas
Multi-Threading

True Parallel Execution

Unlike Redis's single-threaded model, FlashKey leverages native OS threads for parallel command processing. Every CPU core contributes directly to throughput — delivering linear scaling that turns your existing hardware investment into measurable performance gains.

  • Each worker thread has its own event loop
  • Lock-free data structures for concurrent access
  • Linear throughput scaling with additional cores
  • No single-core bottleneck — utilize your full hardware investment
Security

Encryption at Rest, by Default

AES-256-CTR encryption is built into the storage engine. No external tools, no bolt-on solutions, no performance overhead worth measuring.

AES-256-CTR

AES-256-CTR

  • • Storage-level encryption with per-key initialization vectors
Key Rotation

Key Rotation

  • • Online key rotation without service interruption
Memory Protection

Memory Protection

  • • Encrypted data at rest, cleartext only in process memory
Audit Trail

Audit Trail

  • • Cryptographic operations logged for compliance verification
Replication

Active Replication, Built In

Configure master-replica topologies with automatic failover. No external orchestration required — FlashKey handles leader election, data synchronization, and replica promotion as integrated capabilities.

  • Asynchronous replication with configurable sync policies
  • Automatic failover via integrated sentinel
  • Replica promotion without data loss
  • Real-time replication lag monitoring
# Configure replication in one line
flashkey-server --replicaof master.internal 6379
Persistence

Persist Without Blocking

MVCC (Multi-Version Concurrency Control) snapshots allow point-in-time persistence without pausing client operations. No fork(), no COW overhead, no latency spikes.

  • Point-in-time consistent snapshots
  • Zero fork() overhead — no copy-on-write memory pressure
  • Background persistence with configurable intervals
  • AOF (Append-Only File) with fsync policies
  • RDB + AOF hybrid persistence
  • Sub-millisecond snapshot initiation
Compatibility

442 Commands. Full Coverage.

Every Redis command category is supported. Strings, lists, sets, sorted sets, hashes, streams, pub/sub, scripting, transactions, and more.

Data Structures

  • • Strings, Lists, Sets, Sorted Sets
  • • Hashes, Streams, HyperLogLog
  • • Bitmaps

Pub/Sub & Streams

  • • PUBLISH, SUBSCRIBE
  • • XADD, XREAD, XGROUP
  • • Consumer groups

Scripting & Transactions

  • • Lua 5.1 with EVAL, EVALSHA
  • • MULTI, EXEC, WATCH
  • • Optimistic locking

Cluster & Admin

  • • CLUSTER, REPLCONF, SENTINEL
  • • CONFIG, INFO, SLOWLOG
  • • CLIENT, ACL management
Command Categories
Data Structures 180+
Pub/Sub & Streams 45+
Scripting 30+
Transactions 15+
Cluster & Replication 60+
Server & Admin 110+

Production-Ready from Day One

Everything you need for production deployment, built in.

ACL-Based Access Control

User and command-level permissions for granular security policy enforcement

TLS 1.3 Encryption

Encrypted client connections with the latest transport layer security standard

Slow Query Logging

Real-time diagnostics to identify and resolve performance bottlenecks

Memory Analysis Tools

Usage analysis and optimization tools for efficient resource allocation

Keyspace Notifications

Event-driven architecture support with real-time key change notifications

Online Configuration

Change runtime settings without service restart or client disconnection

See FlashKey in Action

Schedule a technical deep-dive with our engineering team.

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