  We present Dinomo, a novel key-value store for disaggregated persistent
memory (DPM). Dinomo is the first key-value store for DPM that simultaneously
achieves high common-case performance, scalability, and lightweight online
reconfiguration. We observe that previously proposed key-value stores for DPM
had architectural limitations that prevent them from achieving all three goals
simultaneously. Dinomo uses a novel combination of techniques such as ownership
partitioning, disaggregated adaptive caching, selective replication, and
lock-free and log-free indexing to achieve these goals. Compared to a
state-of-the-art DPM key-value store, Dinomo achieves at least 3.8x better
throughput on various workloads at scale and higher scalability, while
providing fast reconfiguration.
