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This guide explains how to prevent data loss in MySQL by enabling backups and binlog, performing full restores with mysqldump or xtrabackup, executing point‑in‑time recovery, restoring individual tables, skipping erroneous SQL statements, and using flashback tools like binlog2sql and MyFlash.
This article explains the MySQL 8.0 Clone plugin introduced in version 8.0.17, compares it with Xtrabackup, details its five‑step cloning process, describes the code structure across SQL, plugin, and InnoDB layers, and outlines the page‑archiving subsystem used to track dirty pages during cloning.
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.
This article presents a comprehensive analysis of the shortcomings of an existing database backup solution and details the architecture, high‑performance backup and restore mechanisms, dynamic throttling, storage abstraction, and experimental results of a newly designed, scalable backup‑recovery platform for MySQL databases.
The article explains how a MySQL backup using xtrabackup failed due to two concurrently running cron daemons launching the same backup script, resulting in corrupted compressed files, and provides practical solutions such as using flock, regular restore drills, and monitoring crond processes.
This article provides an in‑depth overview of MySQL backup classifications—including hot, warm, and cold backups—explains physical versus logical backup methods, compares built‑in and third‑party tools such as mysqldump, mysqlhotcopy, LVM snapshots, XtraBackup, and presents step‑by‑step command examples for each approach.
This guide walks through creating a backup directory, performing a full XtraBackup of MySQL, adding data, executing an incremental backup, simulating accidental database deletion, and then restoring the instance step‑by‑step using preparation, copy‑back, permission fixing, and binlog recovery.
This article explains why Percona Xtrabackup backups of MySQL 5.7 can fail with "Too many open files" errors, demonstrates how to reproduce the issue under both non‑root and root users, analyzes the open‑files‑limit settings, and provides practical solutions to adjust system and user limits for successful backups.
This article analyses why physical backups using Xtrabackup fail when MySQL 5.7 performs online DDL operations that skip redo logging, demonstrates the issue with real‑world logs, and presents four practical solutions—including lock‑DDL parameters, per‑table MDL locks, and disabling online DDL—to ensure consistent backups.
This tutorial walks through creating a MySQL database, setting up a backup user, performing full and incremental backups with XtraBackup, compressing and transferring backup files, and restoring the database by preparing logs, copying back data, fixing permissions, restarting MySQL, and verifying the restored data.
This guide demonstrates how to perform a full MySQL backup, create incremental backups, handle accidental database deletions, and restore the data using Percona XtraBackup on a Linux server, including detailed command-line steps and permission adjustments.
This article explains how to prevent data loss in MySQL by enabling binlog in ROW format, performing full and incremental restores using mysqldump or XtraBackup, executing point‑in‑time recovery, restoring individual tables, skipping erroneous SQL statements, and using flashback tools such as binlog2sql and MyFlash.
The article analyzes why xtrabackup full backups fail on MySQL 8.0 when undo log truncation occurs, identifies a bug triggered by the super_read_only setting, and provides reproducible steps and configuration tweaks to prevent the issue.
The article explains that in MySQL 8.0 the binlog_expire_logs_seconds variable can fail to purge old binary logs when a backup lock is held, demonstrates the problem with step‑by‑step reproduction, analyzes the cause, and offers practical work‑arounds and references to the official bug report.
The article explains that Xtrabackup only needs to ensure consistency between data and the binlog position, not full binlog data, because its backup process captures only committed or not‑started transactions, eliminating the need to back up the binlog itself.
This article describes a step‑by‑step investigation of a MySQL 8.0.18 startup failure caused by a missing binlog index file after using Percona XtraBackup on CentOS 8, analyzes the root cause, and provides practical fixes and diagnostic techniques such as strace and source‑code inspection.
This guide explains how to safely recover MySQL data using full backups, incremental binlog recovery, point‑in‑time restores, single‑table extraction, and methods to skip erroneous SQL statements via GTID or delayed replication, complete with practical command examples.
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.
This article demonstrates how to perform remote physical backups of MySQL databases using the mysqlbackup and Percona XtraBackup tools, covering test objectives, environment setup, step‑by‑step streaming commands, restoration procedures, replication configuration, and a comparison of the two approaches.
This article explains XtraBackup's backup workflow, introduces the --parallel and --compress-threads options, and presents performance test results showing how these parameters can significantly reduce backup time for large MySQL databases.