This paper addresses the problem of churn---the continuous process of node arrival and departure---in distributed hash tables (DHTs). We demonstrate through experiment that existing DHT implementations break down at churn levels observed in deployed peer-to-peer systems, contrary to simulation-based results. We present Bamboo, a DHT that handles high levels of churn, and discuss the manner in which it does so. We show that Bamboo is able to function effectively for median node session times as...