Big Data Technology Architecture

Aug 12, 2021 · Databases

Understanding HBase HLog and Fault Recovery Mechanisms

This article explains HBase's write path using Memstore and HLog, details the lifecycle of HLog including construction, rolling, expiration, and deletion, and thoroughly analyzes the three fault‑recovery models—Log Splitting, Distributed Log Splitting, and Distributed Log Replay—highlighting their processes, advantages, and configuration nuances.