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Beijing SF i-TECH City Technology Team
Beijing SF i-TECH City Technology Team
Jun 18, 2024 · Databases

Design and Implementation of MySQL High Availability Using Orchestrator and DBProxy

This article presents a comprehensive design and implementation for achieving MySQL high availability by replacing the single‑master architecture with Orchestrator‑driven automatic failover, integrating DBProxy for transparent routing, and addressing topology changes and data compensation to ensure continuous, reliable service.

DBProxyData CompensationFailover
0 likes · 16 min read
Design and Implementation of MySQL High Availability Using Orchestrator and DBProxy
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 24, 2022 · Databases

Understanding Orchestrator's RegroupReplicasGTID and Candidate Replica Selection in MySQL Failover

This article explains how Orchestrator selects a candidate replica during MySQL master failover, detailing the GetCandidateReplica and RegroupReplicasGTID functions, their sorting logic, promotion rules, GTID-based regrouping, and differences from MHA, while highlighting potential data loss issues and related bugs.

FailoverGTIDMySQL
0 likes · 22 min read
Understanding Orchestrator's RegroupReplicasGTID and Candidate Replica Selection in MySQL Failover
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 17, 2022 · Databases

DeadMaster Recovery Process in Orchestrator

This article explains the complete DeadMaster recovery workflow of Orchestrator, detailing how the system selects the appropriate check‑and‑recover function, handles emergency grace periods, reads topology information, registers recovery attempts, validates promotion constraints, executes the actual failover, and runs post‑recovery hooks, with extensive Go code examples.

FailoverGoMySQL
0 likes · 18 min read
DeadMaster Recovery Process in Orchestrator
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 7, 2022 · Databases

Orchestrator Failover Process Source Code Analysis – Simulating Faults and Understanding ContinuousDiscovery

This article walks through a simulated MySQL 3307 cluster failure, examines Orchestrator's source code to explain the ContinuousDiscovery loop, discovery queues, health ticks, caretaking tasks, raft coordination, topology snapshots, and the logic distinguishing UnreachableMaster from DeadMaster states.

ContinuousDiscoveryDatabase HAFailover
0 likes · 20 min read
Orchestrator Failover Process Source Code Analysis – Simulating Faults and Understanding ContinuousDiscovery
Aikesheng Open Source Community
Aikesheng Open Source Community
Sep 22, 2022 · Databases

Using Orchestrator for Automatic MySQL Cluster Failover: Configuration and Test Cases

This article demonstrates how to configure the open-source Orchestrator tool for automatic MySQL cluster failover, explains key parameters, and presents three test cases covering normal failover, lag‑induced prevention, and the effect of disabling global recoveries.

Cluster ManagementDatabase OperationsFailover
0 likes · 6 min read
Using Orchestrator for Automatic MySQL Cluster Failover: Configuration and Test Cases
Aikesheng Open Source Community
Aikesheng Open Source Community
Sep 7, 2022 · Databases

Step-by-Step Installation and Configuration Guide for MySQL Orchestrator (v3.2.6)

This article provides a comprehensive tutorial on installing and configuring the MySQL Orchestrator high‑availability tool, covering required host environments, software download, extraction, backend MySQL user setup, configuration file editing, service startup, and web UI access.

InstallationMySQLOrchestrator
0 likes · 5 min read
Step-by-Step Installation and Configuration Guide for MySQL Orchestrator (v3.2.6)
TAL Education Technology
TAL Education Technology
Apr 21, 2022 · Databases

Applying Orchestrator for High‑Availability MySQL in TAL Education Group’s Database System

This article describes how TAL Education Group evaluated, selected, and customized the open‑source Orchestrator tool to build a highly available, secure, and extensible MySQL HA solution that meets 99.99% uptime, data‑integrity, cross‑datacenter, and operational automation requirements.

Database ArchitectureMySQLOrchestrator
0 likes · 9 min read
Applying Orchestrator for High‑Availability MySQL in TAL Education Group’s Database System