PHP cache library, with adapters for e.g. Memcached, Redis, Couchbase, APC(u), SQL and additional capabilities (e.g. transactions, stampede protection) built on top.
When using stampede protection feature If the first request protects a key with key.stampede but also resolve the value faster than the SLA then the next request will read both key and key.stampede and wait one attempt.
When using stampede protection feature If the first request protects a key with key.stampede but also resolve the value faster than the SLA then the next request will read both key and key.stampede and wait one attempt.