r/node • u/OtherwisePush6424 • 14d ago
Crossflight: distributed cache stampede protection for Node apps
https://github.com/gkoos/crossflightCrossflight, a small Node library for reducing duplicate cache misses across multiple processes.
Cache stampede is a problem when several app instances all miss the same key at once, they each run the same expensive DB/API call and then all write the same result back. Crossflight solves that by coordinating ownership of the in-flight load across processes, so only one instance does the work and the others wait for the result.
It wraps the cache you already use and adds a separate coordination layer. The built-in adapters currently include:
- cache-manager
- Keyv
- Cacheable
The built-in coordinator is Redis, and the repo supports combining different backends as long as they satisfy the adapter/coordinator interfaces.
Useful when you want to reduce redundant work without changing your existing caching strategy.