MariaDB : Backup2025/05/07 |
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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] 2025-05-07 09:07:03 Executing FLUSH NO_WRITE_TO_BINLOG ENGINE LOGS... [00] 2025-05-07 09:07:03 BACKUP STAGE END [00] 2025-05-07 09:07:03 Executing BACKUP STAGE END [00] 2025-05-07 09:07:03 All tables unlocked [00] 2025-05-07 09:07:03 Backup created in directory '/home/mariadb_backup/' [00] 2025-05-07 09:07:03 Writing backup-my.cnf [00] 2025-05-07 09:07:03 ...done [00] 2025-05-07 09:07:03 Writing xtrabackup_info [00] 2025-05-07 09:07:03 ...done [00] 2025-05-07 09:07:03 Redo log (from LSN 49855 to 49871) was copied. [00] 2025-05-07 09:07:03 completed OK![root@www ~]# ll /home/mariadb_backup total 12744 -rw-r-----. 1 root root 417792 May 7 09:07 aria_log.00000001 -rw-r-----. 1 root root 52 May 7 09:06 aria_log_control -rw-r-----. 1 root root 505 May 7 09:07 backup-my.cnf -rw-r-----. 1 root root 12582912 May 7 09:06 ibdata1 -rw-r-----. 1 root root 12304 May 7 09:06 ib_logfile0 drwx------. 2 root root 4096 May 7 09:07 mysql drwx------. 2 root root 20 May 7 09:06 performance_schema drwx------. 2 root root 8192 May 7 09:06 sys drwx------. 2 root root 64 May 7 09:06 test_database -rw-r-----. 1 root root 97 May 7 09:07 xtrabackup_checkpoints -rw-r-----. 1 root root 435 May 7 09:07 xtrabackup_info |
| [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 691638 May 7 09:12 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 10.11.11-MariaDB Linux (x86_64) [00] 2025-05-07 09:14:56 cd to /root/mariadb_backup/ [00] 2025-05-07 09:14:56 open files limit requested 0, set to 1024 [00] 2025-05-07 09:14:56 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] 2025-05-07 09:14:56 Loading encryption plugin [00] 2025-05-07 09:14:56 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] 2025-05-07 09:14:56 Encryption plugin parameter : '--innodb_encrypt_tables=OFF' [00] 2025-05-07 09:14:56 Encryption plugin parameter : '--prepare' [00] 2025-05-07 09:14:56 Encryption plugin parameter : '--target-dir' [00] 2025-05-07 09:14:56 Encryption plugin parameter : '/root/mariadb_backup' [00] 2025-05-07 09:14:56 This target seems to be not prepared yet. [00] 2025-05-07 09:14:56 mariabackup: using the following InnoDB configuration for recovery: [00] 2025-05-07 09:14:56 innodb_data_home_dir = . [00] 2025-05-07 09:14:56 innodb_data_file_path = ibdata1:12M:autoextend [00] 2025-05-07 09:14:56 innodb_log_group_home_dir = . [00] 2025-05-07 09:14:56 InnoDB: Using Linux native AIO [00] 2025-05-07 09:14:56 Starting InnoDB instance for recovery. [00] 2025-05-07 09:14:56 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter) 2025-05-07 9:14:56 0 [Note] InnoDB: Compressed tables use zlib 1.3.1.zlib-ng 2025-05-07 9:14:56 0 [Note] InnoDB: Number of transaction pools: 1 2025-05-07 9:14:56 0 [Note] InnoDB: Using AVX512 instructions 2025-05-07 9:14:56 0 [Note] InnoDB: Using Linux native AIO 2025-05-07 9:14:56 0 [Note] InnoDB: Initializing buffer pool, total size = 100.000MiB, chunk size = 100.000MiB 2025-05-07 9:14:56 0 [Note] InnoDB: Completed initialization of buffer pool 2025-05-07 9:14:56 0 [Note] InnoDB: Memory-mapped log (block size=512 bytes) 2025-05-07 9:14:56 0 [Note] InnoDB: End of log at LSN=49871 2025-05-07 9:14:56 0 [Note] InnoDB: Buffered log writes (block size=512 bytes) [00] 2025-05-07 09:14:56 Last binlog file , position 0 recovered pages: 0% 33% 45% 89% 100% (0.0 seconds); tables to flush: 1 0 (0.0 seconds); [00] 2025-05-07 09:14:56 completed OK! # run restore [root@node01 ~]# mariabackup --copy-back --target-dir /root/mariadb_backup ..... ..... [01] 2025-05-07 09:15:30 ...done [01] 2025-05-07 09:15:30 Copying ./sys/x@0024waits_global_by_latency.frm to /var/lib/mysql/sys/x@0024waits_global_by_latency.frm [01] 2025-05-07 09:15:30 ...done [01] 2025-05-07 09:15:30 Copying ./sys/x@0024session.frm to /var/lib/mysql/sys/x@0024session.frm [01] 2025-05-07 09:15:30 ...done [01] 2025-05-07 09:15:30 Copying ./sys/session_ssl_status.frm to /var/lib/mysql/sys/session_ssl_status.frm [01] 2025-05-07 09:15:30 ...done [01] 2025-05-07 09:15:30 Copying ./performance_schema/db.opt to /var/lib/mysql/performance_schema/db.opt [01] 2025-05-07 09:15:30 ...done [01] 2025-05-07 09:15:30 Copying ./xtrabackup_info to /var/lib/mysql/xtrabackup_info [01] 2025-05-07 09:15:30 ...done [01] 2025-05-07 09:15:30 Copying ./xtrabackup_binlog_pos_innodb to /var/lib/mysql/xtrabackup_binlog_pos_innodb [01] 2025-05-07 09:15:30 ...done [00] 2025-05-07 09:15:30 completed OK![root@node01 ~]# chown -R mysql:mysql /var/lib/mysql [root@node01 ~]# systemctl start mariadb |
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