Java Interview Crash Guide

Jul 14, 2021 · Backend Development

Achieving High Availability for Elastic Job Lite with Dual‑Data‑Center Sharding

This article explains how to move from risky single‑node deployments of Elastic Job Lite to a robust high‑availability setup across two data centers, covering Zookeeper‑based sharding consistency, priority scheduling, and custom sharding strategies with full Java code examples.