This article is an eight-year retrospective on development priorities for RocksDB, a key-value
store developed at Facebook that targets large-scale distributed systems and that is …

RocksDB is a key-value store targeting large-scale distributed systems and optimized for
Solid State Drives (SSDs). This paper describes how our priorities in developing RocksDB …

Key-value stores (KV) have become one of the main components of the modern storage and
data processing system stack. With the increasing need for timely data analysis …

We introduce ZNSwap, a novel swap subsystem optimized for the recent Zoned Namespace
(ZNS) SSDs. ZNSwap leverages ZNS's explicit control over data management on the drive …

Log-Structure Merge-tree (LSM) based Key-Value (KV) systems are widely deployed. A
widely acknowledged problem with LSM-KVs is write stalls, which refers to sudden …

This paper proposes ZenFS+, a new storage backend of RocksDB for small-zone ZNS SSD.
RocksDB has complicated internal operations such as flush and compaction. Flush and …

With the rapid growth of big data, LSM-tree based key-value stores are widely applied due to
its high efficiency in write performance. Compaction plays a critical role in LSM-tree, which …

The ZNS (Zoned NameSpace) interface shifts much of the storage maintenance
responsibility to the host from the underlying SSDs (Solid-State Drives). In addition, it opens …

LSM-tree is widely used in key-value stores for big data storage, but it suffers from write
amplification brought by frequent compaction operations. An effective solution for this …

ZNS SSDs (Zoned NameSpace Solid State Drives) are a new type of SSD that provides
various features such as zone concept and host-level flash management. In this paper, we …