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MGR

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Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 30, 2023 · Databases

Step‑by‑Step In‑Place Upgrade Guide for MySQL 8.0 (MGR Cluster)

This article provides a comprehensive, step‑by‑step guide for performing an in‑place upgrade of MySQL 8.0 (including MGR clusters) from earlier versions, covering pre‑upgrade checks, backup procedures, configuration changes, data dictionary upgrade, server upgrade, verification, rollback, and common pitfalls.

Database AdministrationIn-Place UpgradeMGR
0 likes · 15 min read
Step‑by‑Step In‑Place Upgrade Guide for MySQL 8.0 (MGR Cluster)
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 1, 2022 · Databases

Debugging MySQL MGR Failover: Assertion Failure in row0pread.cc (MySQL 8.0.18)

The article walks through a MySQL MGR failover incident, analyzes the InnoDB assertion failure shown in the error log, pinpoints the problematic code at row0pread.cc line 727, compares the fix in MySQL 8.0.28, and references the related bug report for future troubleshooting.

InnoDBMGRMySQL
0 likes · 7 min read
Debugging MySQL MGR Failover: Assertion Failure in row0pread.cc (MySQL 8.0.18)
HomeTech
HomeTech
Apr 6, 2022 · Databases

MySQL High Availability Architecture and Practices at AutoHome

This article explains MySQL high‑availability concepts, defines HA, RPO and RTO, outlines common HA architectures such as master‑slave+VIP, MHA and MGR+Proxy, and details AutoHome's evolution from simple master‑slave setups to a container‑based MGR solution with automated failover and monitoring platforms.

High AvailabilityKubernetesMGR
0 likes · 11 min read
MySQL High Availability Architecture and Practices at AutoHome
Java Architecture Diary
Java Architecture Diary
Aug 30, 2021 · Databases

How to Build a High‑Availability GreatSQL MGR Cluster with Docker‑Compose

This article explains the role of distributed architecture for high‑performance internet systems, introduces GreatSQL as a native distributed relational database, compares it with MySQL, and provides step‑by‑step Docker‑Compose instructions to set up, start, and verify a three‑node MGR cluster, plus integration with the PIG microservice platform.

Distributed DatabaseDocker ComposeGreatSQL
0 likes · 8 min read
How to Build a High‑Availability GreatSQL MGR Cluster with Docker‑Compose
Practical DevOps Architecture
Practical DevOps Architecture
Nov 28, 2020 · Databases

Features, Fault Detection, Limitations, and Deployment Scripts for MySQL Group Replication (MGR)

This article outlines MySQL Group Replication’s key features, fault-detection mechanism, limitations, required environment, and step-by-step deployment scripts, providing a practical guide for setting up a high-availability MySQL cluster on CentOS using the provided shell scripts and configuration files.

Group ReplicationHigh AvailabilityMGR
0 likes · 6 min read
Features, Fault Detection, Limitations, and Deployment Scripts for MySQL Group Replication (MGR)
Aikesheng Open Source Community
Aikesheng Open Source Community
Oct 30, 2020 · Databases

Configuring MySQL MGR with Asynchronous Replication Automatic Failover for Multi‑Site Disaster Recovery

This article explains how MySQL Group Replication (MGR) can provide zero‑RPO high‑availability within a city‑scale data center, why it needs asynchronous replication for WAN‑scale disaster recovery, and walks through a step‑by‑step setup—including code examples—for automatic failover of asynchronous replication channels.

Database High AvailabilityFailoverMGR
0 likes · 6 min read
Configuring MySQL MGR with Asynchronous Replication Automatic Failover for Multi‑Site Disaster Recovery
Aikesheng Open Source Community
Aikesheng Open Source Community
Jul 3, 2020 · Databases

Analyzing MySQL Group Replication Node Failure Handling with Wireshark

This article documents an experiment using three virtual machines running MySQL 5.7.20 MGR to capture and analyze network traffic with a custom Wireshark dissector, revealing how the primary node updates views, removes a failed node, and re‑establishes cluster state after a crash.

Database ClusteringGroup ReplicationMGR
0 likes · 4 min read
Analyzing MySQL Group Replication Node Failure Handling with Wireshark