JD Tech

Dec 24, 2025 · Databases

How to Eliminate 30‑Minute Master‑Slave Lag in High‑Volume Inventory Systems

This article analyzes why a warehouse management system’s master‑slave database replication lagged up to 30 minutes during nightly inventory snapshot generation, evaluates several mitigation strategies, and details the chosen big‑data‑driven solution that moved snapshots to Elasticsearch, reducing lag and disk usage.