Universal Single-Flight Engine

Zero-dependency multi-tier key-value caching runtime with built-in stampede protection, lockless promise coalescing, and pluggable storage adapters.

Telemetry & Concurrency Architecture

Observe real-time promise coalescing, multi-tier adapter bridging, and zero-contention throughput under sustained concurrency.

api-gateway · 1,200 req/s web-client · key: catalog:hot mobile-app · coalescing worker-node · in-flight edge-worker · idle KVDOCK ENGINE STREAM BATCH #128

Single-Flight Stampede Guard

Concurrent queries for expired keys are coalesced into a single backend execution, protecting databases from destructive thundering herd spikes.

Sub-Millisecond L1/L2 Cache

Pairs ultra-fast in-memory LRU with distributed stores like Redis and Cloudflare KV for optimal cache hits and sustained microsecond latencies.

Redis Cloudflare KV SQLite / D1 Memory LRU active adapter · redis

Storage Adapters Hub

Connect any database or cache layer — Redis, Cloudflare KV, SQLite, D1, or Memory — using unified zero-dependency contracts.

Stress Run pred +99.9% saved

Zero-Contention Telemetry

Scrub the chart to explore database load reduction. Concurrent throughput scales linearly while backend contention stays at zero.

Live Cache Stampede Simulator

Test thundering herd resilience when a hot cache key expires under thousands of simultaneous requests.

Interactive Workload Injector

Simulate uncoordinated clients querying an expired cache key concurrently and observe the single-flight coalesce response.

Concurrent Incoming Requests: 1,000

Traditional Cache

-
Database Queries
Thundering Herd Risk

KVDock Single-Flight

-
Database Queries
100% Protected

Execution Trace Console

Real-time execution events, promise coalescing locks, and internal microsecond latency telemetry.

[READY] KVDock Engine v0.3.2 initialized.
[INFO] Primary Adapter: Memory LRU + Redis L2
[INFO] Single-Flight Coalescing: ACTIVE
[INFO] Ready for concurrent load injection. Click 'Trigger Stampede Test'.

Polyglot Architecture

One standard specification with native implementations across TypeScript, Rust, Go, Swift, and Kotlin.

One Standard, Five Native Implementations

KVDock executes with identical zero-dependency semantics across edge runtimes, serverless handlers, and distributed microservices.

// npm install kvdock@0.3.2
import { KVDock, TieredDock } from "kvdock";
import { MemoryAdapter } from "kvdock/adapters/memory";
import { RedisAdapter } from "kvdock/adapters/redis";

// Pair ultra-fast in-memory L1 with persistent L2
const dock = new TieredDock({
  l1: new MemoryAdapter({ maxSize: 10_000 }),
  l2: new RedisAdapter({ url: "redis://localhost:6379" }),
  l1TTL: 15_000 // Micro-cache hot keys for 15s
});

// Single-Flight Stampede Protection: 1,000 requests -> 1 DB fetch
const product = await dock.getOrSet("product:catalog:hot", async () => {
  return await db.query("SELECT * FROM catalog WHERE hot = true");
}, { ttl: 300_000 });

Architected by zisam shaikh

Systems & Concurrency Engineer building zero-dependency runtimes, lockless primitives, and resilient infrastructure across TypeScript, Rust, and Go.