MariaDB 11.8 : Backup2026/05/28 |
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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] 2026-05-28 00:27:02 Starting BACKUP STAGE END [00] 2026-05-28 00:27:02 Executing BACKUP STAGE END [00] 2026-05-28 00:27:02 All tables unlocked [00] 2026-05-28 00:27:02 Backup created in directory '/home/mariadb_backup/' [00] 2026-05-28 00:27:02 Writing backup-my.cnf [00] 2026-05-28 00:27:02 ...done [00] 2026-05-28 00:27:02 Writing mariadb_backup_info [00] 2026-05-28 00:27:02 ...done [00] 2026-05-28 00:27:02 Redo log (from LSN 45600 to 45616) was copied. [00] 2026-05-28 00:27:02 completed OK!root@www:~# ll /home/mariadb_backup total 43476 drwxr-xr-x 5 root root 4096 May 28 00:27 ./ drwxr-xr-x 4 root root 4096 May 28 00:26 ../ -rw-r----- 1 root root 417792 May 28 00:27 aria_log.00000001 -rw-r----- 1 root root 52 May 28 00:27 aria_log_control -rw-r----- 1 root root 501 May 28 00:27 backup-my.cnf -rw-r----- 1 root root 12304 May 28 00:27 ib_logfile0 -rw-r----- 1 root root 12582912 May 28 00:27 ibdata1 -rw-r----- 1 root root 97 May 28 00:27 mariadb_backup_checkpoints -rw-r----- 1 root root 443 May 28 00:27 mariadb_backup_info drwx------ 2 root root 4096 May 28 00:27 mysql/ drwx------ 2 root root 4096 May 28 00:27 performance_schema/ drwx------ 2 root root 12288 May 28 00:27 sys/ -rw-r----- 1 root root 10485760 May 28 00:27 undo001 -rw-r----- 1 root root 10485760 May 28 00:27 undo002 -rw-r----- 1 root root 10485760 May 28 00:27 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/mariadb/*
# transferred backup data root@node01:~# ll mariadb_backup.tar.gz -rw-r--r-- 1 ubuntu ubuntu 744531 May 28 00:30 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 11.8.6-MariaDB debian-linux-gnu (x86_64) [00] 2026-05-28 00:33:24 cd to /root/mariadb_backup/ [00] 2026-05-28 00:33:24 open files limit requested 0, set to 1024 [00] 2026-05-28 00:33:24 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] 2026-05-28 00:33:24 Loading encryption plugin [00] 2026-05-28 00:33:24 Encryption plugin parameter : 'mariabackup' [00] 2026-05-28 00:33:24 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] 2026-05-28 00:33:24 Encryption plugin parameter : '--innodb_encrypt_tables=OFF' [00] 2026-05-28 00:33:24 Encryption plugin parameter : '--prepare' [00] 2026-05-28 00:33:24 Encryption plugin parameter : '--target-dir' [00] 2026-05-28 00:33:24 Encryption plugin parameter : '/root/mariadb_backup' [00] 2026-05-28 00:33:24 This target seems to be not prepared yet. [00] 2026-05-28 00:33:24 mariabackup: using the following InnoDB configuration for recovery: [00] 2026-05-28 00:33:24 innodb_data_home_dir = . [00] 2026-05-28 00:33:24 innodb_data_file_path = ibdata1:12M:autoextend [00] 2026-05-28 00:33:24 innodb_log_group_home_dir = . [00] 2026-05-28 00:33:24 Starting InnoDB instance for recovery. [00] 2026-05-28 00:33:24 mariabackup: Using 100663296 bytes for buffer pool (set by --use-memory parameter) 2026-05-28 0:33:24 0 [Note] InnoDB: Compressed tables use zlib 1.3.1 2026-05-28 0:33:24 0 [Note] InnoDB: Number of transaction pools: 1 2026-05-28 0:33:24 0 [Note] InnoDB: Using AVX512 instructions 2026-05-28 0:33:24 0 [Note] InnoDB: Using io_uring 2026-05-28 0:33:24 0 [Note] InnoDB: innodb_buffer_pool_size_max=96m, innodb_buffer_pool_size=96m 2026-05-28 0:33:24 0 [Note] InnoDB: Completed initialization of buffer pool 2026-05-28 0:33:24 0 [Note] InnoDB: Buffered log writes (block size=512 bytes) 2026-05-28 0:33:24 0 [Note] InnoDB: End of log at LSN=45616 [00] 2026-05-28 00:33:24 Last binlog file , position 0 recovered pages: 0% 15% 35% 61% 100% (0.0 seconds); tables to flush: 1 0 (0.0 seconds); [00] 2026-05-28 00:33:24 completed OK! # run restore root@node01:~# mariabackup --copy-back --target-dir /root/mariadb_backup ..... ..... [01] 2026-05-28 00:33:51 ...done [01] 2026-05-28 00:33:51 Copying ./sys/x@0024schema_flattened_keys.frm to /var/lib/mariadb/sys/x@0024schema_flattened_keys.frm [01] 2026-05-28 00:33:51 ...done [01] 2026-05-28 00:33:51 Copying ./sys/x@0024host_summary_by_file_io_type.frm to /var/lib/mariadb/sys/x@0024host_summary_by_file_io_type.frm [01] 2026-05-28 00:33:51 ...done [01] 2026-05-28 00:33:51 Copying ./sys/io_global_by_file_by_bytes.frm to /var/lib/mariadb/sys/io_global_by_file_by_bytes.frm [01] 2026-05-28 00:33:51 ...done [01] 2026-05-28 00:33:51 Copying ./sys/x@0024innodb_buffer_stats_by_table.frm to /var/lib/mariadb/sys/x@0024innodb_buffer_stats_by_table.frm [01] 2026-05-28 00:33:51 ...done [01] 2026-05-28 00:33:51 Copying ./performance_schema/db.opt to /var/lib/mariadb/performance_schema/db.opt [01] 2026-05-28 00:33:51 ...done [00] 2026-05-28 00:33:51 completed OK!root@node01:~# chown -R mysql:mysql /var/lib/mariadb root@node01:~# systemctl start mariadb |
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