MariaDB 11.8 : Backup2026/04/17 |
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For Backup and Restore MariaDB Data, it's possible to run with [mariabackup]. |
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| [1] | Generally [mariabackup] tool is installed with MariaDB Server for dependency, but if it has not been installed, Install it first. |
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[root@www ~]# dnf -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] 2026-04-17 11:05:38 Executing BACKUP STAGE END [00] 2026-04-17 11:05:38 All tables unlocked [00] 2026-04-17 11:05:38 Backup created in directory '/home/mariadb_backup/' [00] 2026-04-17 11:05:38 Writing backup-my.cnf [00] 2026-04-17 11:05:38 ...done [00] 2026-04-17 11:05:38 Writing mariadb_backup_info [00] 2026-04-17 11:05:38 ...done [00] 2026-04-17 11:05:38 Redo log (from LSN 48857 to 48873) was copied. [00] 2026-04-17 11:05:38 completed OK![root@www ~]# ll /home/mariadb_backup total 43464 -rw-r-----. 1 root root 417792 Apr 17 11:05 aria_log.00000001 -rw-r-----. 1 root root 52 Apr 17 11:05 aria_log_control -rw-r-----. 1 root root 477 Apr 17 11:05 backup-my.cnf -rw-r-----. 1 root root 12582912 Apr 17 11:05 ibdata1 -rw-r-----. 1 root root 12304 Apr 17 11:05 ib_logfile0 -rw-r-----. 1 root root 97 Apr 17 11:05 mariadb_backup_checkpoints -rw-r-----. 1 root root 429 Apr 17 11:05 mariadb_backup_info drwx------. 2 root root 4096 Apr 17 11:05 mysql drwx------. 2 root root 20 Apr 17 11:05 performance_schema drwx------. 2 root root 8192 Apr 17 11:05 sys drwx------. 2 root root 64 Apr 17 11:05 test_database -rw-r-----. 1 root root 10485760 Apr 17 11:05 undo001 -rw-r-----. 1 root root 10485760 Apr 17 11:05 undo002 -rw-r-----. 1 root root 10485760 Apr 17 11:05 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 cent cent 732818 Apr 17 11:09 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: Deprecated program name. It will be removed in a future release, use '/usr/bin/mariadb-backup' instead mariabackup based on MariaDB server 11.8.5-MariaDB Linux (x86_64) [00] 2026-04-17 11:10:03 cd to /root/mariadb_backup/ [00] 2026-04-17 11:10:03 open files limit requested 0, set to 1024 [00] 2026-04-17 11:10:03 Loading encryption plugin from provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzo=provider_lzo;provider_snappy=provider_snappy [00] 2026-04-17 11:10:03 Loading encryption plugin [00] 2026-04-17 11:10:03 Encryption plugin parameter : 'mariabackup' [00] 2026-04-17 11:10:03 Encryption plugin parameter : '--plugin_load=provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzo=provider_lzo;provider_snappy=provider_snappy' [00] 2026-04-17 11:10:03 Encryption plugin parameter : '--innodb_encrypt_tables=OFF' [00] 2026-04-17 11:10:03 Encryption plugin parameter : '--prepare' [00] 2026-04-17 11:10:03 Encryption plugin parameter : '--target-dir' [00] 2026-04-17 11:10:03 Encryption plugin parameter : '/root/mariadb_backup' [00] 2026-04-17 11:10:03 This target seems to be not prepared yet. [00] 2026-04-17 11:10:03 mariabackup: using the following InnoDB configuration for recovery: [00] 2026-04-17 11:10:03 innodb_data_home_dir = . [00] 2026-04-17 11:10:03 innodb_data_file_path = ibdata1:12M:autoextend [00] 2026-04-17 11:10:03 innodb_log_group_home_dir = . [00] 2026-04-17 11:10:03 Starting InnoDB instance for recovery. [00] 2026-04-17 11:10:03 mariabackup: Using 100663296 bytes for buffer pool (set by --use-memory parameter) 2026-04-17 11:10:03 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2026-04-17 11:10:03 0 [Note] InnoDB: Number of transaction pools: 1 2026-04-17 11:10:03 0 [Note] InnoDB: Using AVX512 instructions 2026-04-17 11:10:03 0 [Note] InnoDB: Using Linux native AIO 2026-04-17 11:10:03 0 [Note] InnoDB: innodb_buffer_pool_size_max=96m, innodb_buffer_pool_size=96m 2026-04-17 11:10:03 0 [Note] InnoDB: Completed initialization of buffer pool 2026-04-17 11:10:03 0 [Note] InnoDB: Buffered log writes (block size=512 bytes) 2026-04-17 11:10:03 0 [Note] InnoDB: End of log at LSN=48873 [00] 2026-04-17 11:10:03 Last binlog file , position 0 recovered pages: 0% 15% 36% 62% 100% (0.0 seconds); tables to flush: 1 0 (0.1 seconds); [00] 2026-04-17 11:10:03 completed OK! # run restore [root@node01 ~]# mariabackup --copy-back --target-dir /root/mariadb_backup ..... ..... [01] 2026-04-17 11:10:33 Copying ./sys/x@0024session.frm to /var/lib/mysql/sys/x@0024session.frm [01] 2026-04-17 11:10:33 ...done [01] 2026-04-17 11:10:33 Copying ./sys/session_ssl_status.frm to /var/lib/mysql/sys/session_ssl_status.frm [01] 2026-04-17 11:10:33 ...done [01] 2026-04-17 11:10:33 Copying ./performance_schema/db.opt to /var/lib/mysql/performance_schema/db.opt [01] 2026-04-17 11:10:33 ...done [01] 2026-04-17 11:10:33 Copying ./mariadb_backup_info to /var/lib/mysql/mariadb_backup_info [01] 2026-04-17 11:10:33 ...done [01] 2026-04-17 11:10:33 Copying ./xtrabackup_binlog_pos_innodb to /var/lib/mysql/xtrabackup_binlog_pos_innodb [01] 2026-04-17 11:10:33 ...done [00] 2026-04-17 11:10:33 completed OK![root@node01 ~]# chown -R mysql:mysql /var/lib/mysql [root@node01 ~]# systemctl start mariadb |
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