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360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Dec 15, 2025 · Databases

How TiDB Achieves Multi‑Datacenter High Availability with Multi‑Raft and TiCDC

This article explains TiDB's distributed, financial‑grade high‑availability architecture, covering single‑cluster same‑zone multi‑datacenter deployment, cross‑cluster DTS synchronization, underlying Raft and label mechanisms, configuration examples, performance trade‑offs, and real‑world monitoring results on the HULK cloud platform.

TiCDCTiDBdistributed database
0 likes · 16 min read
How TiDB Achieves Multi‑Datacenter High Availability with Multi‑Raft and TiCDC
Xiaolei Talks DB
Xiaolei Talks DB
Sep 4, 2024 · Databases

Master Online TiDB Migration: Step‑by‑Step Guide for Cross‑Data‑Center Moves

This guide details three online TiDB migration scenarios—including placement‑rule replica placement, TiCDC with BR backup, and hybrid strategies—covering preparation, network and resource requirements, configuration commands, region balancing, PD leader transfer, and post‑migration cleanup for seamless cross‑data‑center database relocation.

BR BackupKubernetesPlacement Rules
0 likes · 19 min read
Master Online TiDB Migration: Step‑by‑Step Guide for Cross‑Data‑Center Moves
Xiaolei Talks DB
Xiaolei Talks DB
Mar 26, 2022 · Databases

Why TiDB’s GC Stalled and How to Fix Disk Space Alarms

This article walks through a real‑world TiDB/TiKV disk‑space alarm case, diagnosing why the GC worker got stuck, how TiCDC’s lingering changefeed caused outdated MVCC versions, and the step‑by‑step commands and monitoring tricks used to restore normal GC and reclaim storage.

TiCDCTiDBTiKV
0 likes · 15 min read
Why TiDB’s GC Stalled and How to Fix Disk Space Alarms
HomeTech
HomeTech
Sep 1, 2021 · Databases

Case Study: TiDB Deployment for the 2021 "818 Global Auto Festival"

This case study details how Car Home leveraged TiDB 5.1.1 with a three‑data‑center, five‑replica HTAP architecture to support the high‑traffic 818 Global Auto Festival, covering background, business requirements, database selection, system design, performance challenges, solutions, and post‑event insights.

HTAPPerformance TestingTiCDC
0 likes · 11 min read
Case Study: TiDB Deployment for the 2021 "818 Global Auto Festival"
Xiaolei Talks DB
Xiaolei Talks DB
Aug 30, 2021 · Backend Development

Unlocking TiCDC: Efficient Incremental Data Sync for TiDB in Real‑World Scenarios

This article explains how TiCDC, a change‑data‑capture tool for TiDB, addresses incremental extraction, cross‑region hot‑standby, and stream processing needs, outlines its architecture, discusses early‑version issues, and provides best‑practice recommendations for stable, high‑performance data synchronization.

Change Data CaptureKafkaTiCDC
0 likes · 13 min read
Unlocking TiCDC: Efficient Incremental Data Sync for TiDB in Real‑World Scenarios