Tagged articles

lease mechanism

3 articles · Page 1 of 1

Apr 29, 2026 · Backend Development

How Leading Tech Companies Elegantly Avoid the Delayed Double Delete Pitfall

The article dissects why the delayed double‑delete cache‑consistency pattern breaks under high traffic, illustrates Alibaba’s painful experience, and then details two production‑grade alternatives—lease‑based token control and version‑number comparison—explaining their principles, Redis‑Lua implementations, and trade‑offs.

Cache consistencyRedis Luadelayed double delete

0 likes · 8 min read

How Leading Tech Companies Elegantly Avoid the Delayed Double Delete Pitfall

JD Retail Technology

Aug 16, 2019 · Databases

Online Schema Change in Distributed Databases: Insights from Google F1 and CB‑SQL

The article explains how distributed databases can perform online, asynchronous schema changes without blocking reads or writes by using lease‑based coordination, intermediate delete‑only and write‑only states, and a multi‑step algorithm inspired by Google F1 and implemented in CB‑SQL.

CB-SQLGoogle F1distributed databases

0 likes · 11 min read

Online Schema Change in Distributed Databases: Insights from Google F1 and CB‑SQL

dbaplus Community

Sep 17, 2018 · Databases

Mastering Data Sharding: Hash, Consistent Hash, and Range Partition Strategies Explained

This article explains the core concepts of data sharding in distributed storage systems, compares hash, consistent‑hash, and range‑based partitioning, discusses how to choose sharding keys, examines metadata server designs and high‑availability solutions, and introduces lease‑based cache consistency mechanisms.

Consistent Hashinghash partitionlease mechanism

0 likes · 28 min read

Mastering Data Sharding: Hash, Consistent Hash, and Range Partition Strategies Explained