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NSDI '24 - LoLKV: The Logless, Linearizable, RDMA-based Key-Value Storage System Ahmed Alquraan and Sreeharsha Udayashankar, University of Waterloo; Virendra Marathe, Oracle Labs; Bernard Wong and Samer Al-Kiswany, University of Waterloo We present LoLKV, a novel logless replicated key-value storage system. LoLKV follows a fundamentally different approach for designing a linearizable key-value storage system compared to state-of-the-art systems. LoLKV forgoes the classical log-based design and uses lock-free approach to allow multiple threads to concurrently update objects. It presents a novel leader election and consolidation approach to handle complex failure scenarios. LoLKV’s followers are passive, reducing their overall CPU usage. Our evaluation shows that LoLKV achieves 1.7–10× higher throughput and 20–92% lower tail latency than other state-of-the-art low-latency key-value stores. View the full NSDI '24 program at https://www.usenix.org/conference/nsdi24/technical-sessions