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Recovery

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Cognitive Technology Team
Cognitive Technology Team
Apr 18, 2025 · Operations

The Forbidden Maven Cache: 10 Ways to Break CI and How to Recover

This article explains how a corrupted Maven .m2 cache can sabotage builds and CI pipelines, outlines ten destructive Maven options with code examples, and provides practical recovery steps to restore reliable, reproducible builds.

BuildCacheDevOps
0 likes · 7 min read
The Forbidden Maven Cache: 10 Ways to Break CI and How to Recover
Aikesheng Open Source Community
Aikesheng Open Source Community
Jun 27, 2024 · Databases

Evaluation of OceanBase Arbitration Service in a 2F1A Deployment: Fault Injection Experiments and Recovery Procedures

This article presents a detailed experimental study of OceanBase's Arbitration Service in a 2F1A (two full‑function replicas plus one arbitration node) configuration, examining how the system behaves when one or both full‑function replicas fail, how log‑stream degradation and permanent offline mechanisms work, and how normal service is restored after node recovery.

Arbitration ServiceDistributed DatabaseOceanBase
0 likes · 17 min read
Evaluation of OceanBase Arbitration Service in a 2F1A Deployment: Fault Injection Experiments and Recovery Procedures
Aikesheng Open Source Community
Aikesheng Open Source Community
Feb 7, 2024 · Databases

Accelerating MySQL Data Recovery with Xtrabackup: Scenarios and Techniques

This article explains how DBA engineers can speed up MySQL data recovery using Xtrabackup by covering three scenarios—full backup with binlog, single-database restore, and single-table restore—detailing steps such as SQL thread replay, parallel replication, and transportable tablespace techniques with practical command examples.

MySQLRecoveryReplication
0 likes · 21 min read
Accelerating MySQL Data Recovery with Xtrabackup: Scenarios and Techniques
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 13, 2023 · Databases

MySQL Backup and Recovery Best Practices

This article explains why MySQL backups are essential, defines RTO and RPO, compares physical and logical backup methods, describes snapshot, binary‑log, incremental and differential strategies, and provides best‑practice recommendations and example commands for reliable backup and recovery.

DatabaseMySQLPercona XtraBackup
0 likes · 13 min read
MySQL Backup and Recovery Best Practices
Aikesheng Open Source Community
Aikesheng Open Source Community
Jan 17, 2023 · Databases

Understanding Redis Persistence: RDB and AOF Overview

This article provides a comprehensive overview of Redis persistence mechanisms, detailing the concepts, features, advantages, disadvantages, trigger strategies, operational processes, configuration options, and troubleshooting steps for both RDB (snapshot) and AOF (append‑only file) approaches.

AOFDatabasePersistence
0 likes · 10 min read
Understanding Redis Persistence: RDB and AOF Overview
Aikesheng Open Source Community
Aikesheng Open Source Community
Dec 5, 2022 · Databases

Greenplum Standby Failure Diagnosis and Recovery Procedure

This article describes how to identify and fix Greenplum standby segment failures by inspecting segment status, comparing missing files, generating a recovery configuration, executing gprecoverseg commands, and verifying that all segments return to normal operation without service interruption.

DatabaseGreenplumRecovery
0 likes · 17 min read
Greenplum Standby Failure Diagnosis and Recovery Procedure
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
IT Architects Alliance
IT Architects Alliance
Mar 9, 2022 · Databases

Understanding Database Transactions, ACID Properties, and Two‑Phase/Three‑Phase Commit Protocols

This article explains the ACID properties of database transactions, distinguishes between single‑node and distributed transactions, describes the two‑phase and three‑phase commit protocols, discusses transaction states, fault tolerance, and recovery mechanisms, and shows how replication and consensus can provide high availability for transaction processing.

2PC3PCACID
0 likes · 10 min read
Understanding Database Transactions, ACID Properties, and Two‑Phase/Three‑Phase Commit Protocols
Laiye Technology Team
Laiye Technology Team
Oct 30, 2021 · Databases

Introduction to MySQL Group Replication (MGR) and Its Application in Private Deployments

This article explains the fundamentals, architecture, deployment patterns, recovery procedures, performance tuning, and common troubleshooting of MySQL Group Replication (MGR) as a high‑availability solution for private deployments, illustrated with real‑world examples and practical SQL commands.

Group ReplicationMySQLPerformance Tuning
0 likes · 16 min read
Introduction to MySQL Group Replication (MGR) and Its Application in Private Deployments
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Jul 23, 2021 · Mobile Development

Fastboot Protocol and Fastbootd Process on Android Devices

Fastbootd, introduced in Android Q, runs inside recovery to implement the full fastboot flashing protocol—supporting dynamic super‑partition management, USB FunctionFS communication, and OEM commands—by using source files in system/core/fastboot and recovery, triggered via adb or bootloader reboot‑fastboot.

FastbootFastbootdRecovery
0 likes · 7 min read
Fastboot Protocol and Fastbootd Process on Android Devices
Laravel Tech Community
Laravel Tech Community
Jun 29, 2021 · Databases

MySQL Data Recovery: Backup, Binlog, Point‑in‑Time Recovery and Tools

This article explains how to prevent data loss in MySQL by enabling backups and row‑based binlog, then details full‑volume recovery with mysqldump or xtrabackup, point‑in‑time restoration using binlog, table‑level recovery, skipping erroneous SQL statements, and introduces open‑source tools such as binlog2sql and MyFlash.

MyFlashMySQLRecovery
0 likes · 15 min read
MySQL Data Recovery: Backup, Binlog, Point‑in‑Time Recovery and Tools
DataFunTalk
DataFunTalk
Mar 21, 2021 · Big Data

Single‑Point Recovery and Regional Checkpoint in Flink: Design, Implementation, and Optimizations

This article presents ByteDance's recent Flink enhancements, detailing a single‑point recovery mechanism for the network layer and a regional checkpoint strategy that together improve failover latency, reduce output loss, and enable scalable, high‑throughput stream processing for large‑scale real‑time recommendation workloads.

Big DataCheckpointFailover
0 likes · 12 min read
Single‑Point Recovery and Regional Checkpoint in Flink: Design, Implementation, and Optimizations
Practical DevOps Architecture
Practical DevOps Architecture
Jan 6, 2021 · Databases

MySQL 8.0 Full Backup and Incremental Recovery Using mysqldump and mysqlbinlog

This article demonstrates how to perform a full backup of a MySQL 8.0 database using mysqldump, drop and recreate the database, then restore it and apply incremental recovery with mysqlbinlog by specifying start and stop positions to recover data inserted after the backup.

DatabaseMySQLRecovery
0 likes · 5 min read
MySQL 8.0 Full Backup and Incremental Recovery Using mysqldump and mysqlbinlog
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Dec 21, 2020 · Databases

MySQL Backup and Recovery: Strategies, Tools, and Best Practices

This article explains the importance of MySQL backup and recovery, outlines common failure scenarios, recommends backup architectures and verification processes, reviews popular logical and physical backup tools such as mysqldump, mydumper, and xtrabackup, and shares practical case studies and best‑practice guidelines.

Database AdministrationMySQLRecovery
0 likes · 10 min read
MySQL Backup and Recovery: Strategies, Tools, and Best Practices
Aikesheng Open Source Community
Aikesheng Open Source Community
Oct 15, 2020 · Databases

MySQL Crash After Hardware Replacement: Missing MLOG_CHECKPOINT Redo Log and Recovery Procedure

After replacing a MySQL server's CPU and motherboard, the instance fails to start due to a missing MLOG_CHECKPOINT marker in the redo log, and the article explains the underlying cause, recovery options using innodb_force_recovery levels, and step‑by‑step data restoration.

Database AdministrationInnoDBMySQL
0 likes · 4 min read
MySQL Crash After Hardware Replacement: Missing MLOG_CHECKPOINT Redo Log and Recovery Procedure
Laravel Tech Community
Laravel Tech Community
Sep 5, 2020 · Databases

MySQL Database Backup and Recovery

The article explains why MySQL databases need regular backup, describes common data‑loss scenarios, classifies backup types (hot, cold, warm) and methods (logical, physical), lists popular tools, and provides detailed command‑line examples for backing up, restoring, migrating, and exporting data.

Hot BackupMySQLRecovery
0 likes · 27 min read
MySQL Database Backup and Recovery
360 Tech Engineering
360 Tech Engineering
Jul 8, 2019 · Operations

Common ETCD Issues and Recovery Procedures

This guide explains ETCD’s high‑availability architecture and provides detailed step‑by‑step recovery procedures for single‑node failures, majority‑node outages, and database‑space‑exceeded errors, including status checks, member removal and addition, snapshot restoration, compaction, defragmentation, and alarm clearing.

Distributed SystemsETCDRecovery
0 likes · 7 min read
Common ETCD Issues and Recovery Procedures