A. Jesse Jiryu Davis • 9/13/2023

Review: PolarDB-SCC: A Cloud-Native Database Ensuring Low Latency for Strongly Consistent Reads

This article reviews the technical paper "PolarDB-SCC: A Cloud-Native Database Ensuring Low Latency for Strongly Consistent Reads." It explains how Alibaba's PolarDB architecture traditionally faced a trade-off between consistency and performance. The new SCC system introduces algorithms using one-sided RDMA for fast write-ahead log replication and a read-wait protocol with a Linear Lamport timestamp optimization, enabling strongly consistent reads from read-only nodes and improving scalability.

0 comments

#distributed systems #Replication #Cloud Native Database