MariaDB 11.4 : Backup2025/04/22 |
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For Backup and Restore MariaDB Data, it's possible to run with [mariabackup]. |
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| [1] | Install Backup tool. |
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root@www:~# apt -y install mariadb-backup
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| [2] | Run Backup. For example, get backup under [/home/mariadb_backup]. |
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root@www:~# mkdir /home/mariadb_backup root@www:~# mariabackup --backup --target-dir /home/mariadb_backup -u root ..... ..... [00] 2025-04-22 04:31:30 BACKUP STAGE END [00] 2025-04-22 04:31:30 Executing BACKUP STAGE END [00] 2025-04-22 04:31:30 All tables unlocked [00] 2025-04-22 04:31:30 Backup created in directory '/home/mariadb_backup/' [00] 2025-04-22 04:31:30 Writing backup-my.cnf [00] 2025-04-22 04:31:30 ...done [00] 2025-04-22 04:31:30 Writing mariadb_backup_info [00] 2025-04-22 04:31:30 ...done [00] 2025-04-22 04:31:30 Redo log (from LSN 50602 to 50618) was copied. [00] 2025-04-22 04:31:30 completed OK!root@www:~# ll /home/mariadb_backup total 43480 drwxr-xr-x 6 root root 4096 Apr 22 04:31 ./ drwxr-xr-x 4 root root 4096 Apr 22 04:31 ../ -rw-r----- 1 root root 417792 Apr 22 04:31 aria_log.00000001 -rw-r----- 1 root root 52 Apr 22 04:31 aria_log_control -rw-r----- 1 root root 501 Apr 22 04:31 backup-my.cnf -rw-r----- 1 root root 12304 Apr 22 04:31 ib_logfile0 -rw-r----- 1 root root 12582912 Apr 22 04:31 ibdata1 -rw-r----- 1 root root 97 Apr 22 04:31 mariadb_backup_checkpoints -rw-r----- 1 root root 431 Apr 22 04:31 mariadb_backup_info drwx------ 2 root root 4096 Apr 22 04:31 mysql/ drwx------ 2 root root 4096 Apr 22 04:31 performance_schema/ drwx------ 2 root root 12288 Apr 22 04:31 sys/ drwx------ 2 root root 4096 Apr 22 04:31 test_database/ -rw-r----- 1 root root 10485760 Apr 22 04:31 undo001 -rw-r----- 1 root root 10485760 Apr 22 04:31 undo002 -rw-r----- 1 root root 10485760 Apr 22 04:31 undo003 |
| [3] | For restoring data from backup on another host, run like follows. Before restoring, transfer backup data to the target host with [rsync] or [scp] and so on. |
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# stop MariaDB and remove existing data root@node01:~# systemctl stop mariadb root@node01:~# rm -rf /var/lib/mysql/*
# transferred backup data root@node01:~# ll mariadb_backup.tar.gz -rw-r--r-- 1 root root 747646 Apr 22 04:44 mariadb_backup.tar.gz root@node01:~# tar zxvf mariadb_backup.tar.gz # run prepare task before restore task (OK if [completed OK]) root@node01:~# mariabackup --prepare --target-dir /root/mariadb_backup mariabackup based on MariaDB server 11.4.5-MariaDB debian-linux-gnu (x86_64) [00] 2025-04-22 04:45:28 cd to /root/mariadb_backup/ [00] 2025-04-22 04:45:28 open files limit requested 0, set to 1024 [00] 2025-04-22 04:45:28 Loading encryption plugin from provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzma=provider_lzma;provider_lzo=provider_lzo;provider_snappy=provider_snappy [00] 2025-04-22 04:45:28 Loading encryption plugin [00] 2025-04-22 04:45:28 Encryption plugin parameter : '--plugin_load=provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzma=provider_lzma;provider_lzo=provider_lzo;provider_snappy=provider_snappy' [00] 2025-04-22 04:45:28 Encryption plugin parameter : '--innodb_encrypt_tables=OFF' [00] 2025-04-22 04:45:28 Encryption plugin parameter : '--prepare' [00] 2025-04-22 04:45:28 Encryption plugin parameter : '--target-dir' [00] 2025-04-22 04:45:28 Encryption plugin parameter : '/root/mariadb_backup' [00] 2025-04-22 04:45:28 This target seems to be not prepared yet. [00] 2025-04-22 04:45:28 mariabackup: using the following InnoDB configuration for recovery: [00] 2025-04-22 04:45:28 innodb_data_home_dir = . [00] 2025-04-22 04:45:28 innodb_data_file_path = ibdata1:12M:autoextend [00] 2025-04-22 04:45:28 innodb_log_group_home_dir = . [00] 2025-04-22 04:45:28 InnoDB: Using liburing [00] 2025-04-22 04:45:28 Starting InnoDB instance for recovery. [00] 2025-04-22 04:45:28 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter) 2025-04-22 4:45:28 0 [Note] InnoDB: Compressed tables use zlib 1.3.1 2025-04-22 4:45:28 0 [Note] InnoDB: Number of transaction pools: 1 2025-04-22 4:45:28 0 [Note] InnoDB: Using AVX512 instructions 2025-04-22 4:45:28 0 [Note] InnoDB: Using liburing 2025-04-22 4:45:28 0 [Note] InnoDB: Initializing buffer pool, total size = 100.000MiB, chunk size = 100.000MiB 2025-04-22 4:45:28 0 [Note] InnoDB: Completed initialization of buffer pool 2025-04-22 4:45:28 0 [Note] InnoDB: Memory-mapped log (block size=512 bytes) 2025-04-22 4:45:28 0 [Note] InnoDB: End of log at LSN=50618 2025-04-22 4:45:28 0 [Note] InnoDB: Buffered log writes (block size=512 bytes) [00] 2025-04-22 04:45:28 Last binlog file , position 0 recovered pages: 0% 33% 45% 89% 100% (0.0 seconds); tables to flush: 1 0 (0.0 seconds); [00] 2025-04-22 04:45:28 completed OK! # run restore root@node01:~# mariabackup --copy-back --target-dir /root/mariadb_backup ..... ..... [01] 2025-04-22 04:45:59 Copying ./performance_schema/db.opt to /var/lib/mysql/performance_schema/db.opt [01] 2025-04-22 04:45:59 ...done [01] 2025-04-22 04:45:59 Copying ./xtrabackup_binlog_pos_innodb to /var/lib/mysql/xtrabackup_binlog_pos_innodb [01] 2025-04-22 04:45:59 ...done [01] 2025-04-22 04:45:59 Copying ./mariadb_backup_info to /var/lib/mysql/mariadb_backup_info [01] 2025-04-22 04:45:59 ...done [00] 2025-04-22 04:45:59 completed OK!root@node01:~# chown -R mysql:mysql /var/lib/mysql root@node01:~# systemctl start mariadb |
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