Fedora 36
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MariaDB 10.7 : Backup2022/05/27

 
For Backup and Restore MariaDB Data, it's possible to run with [mariabackup].
[1] Generally [mariabackup] tool is installed with MariaDB Server for dependency, but if it has not been installed, Install it first.
[root@www ~]#
dnf -y install mariadb-backup
[2] Run Backup.
For example, get backup under [/home/mariadb_backup].
[root@www ~]#
mkdir /home/mariadb_backup

[root@www ~]#
mariabackup --backup --target-dir /home/mariadb_backup -u root

[00] 2022-05-27 09:25:20 Connecting to MariaDB server host: localhost, user: root, password: not set, port: not set, socket: not set
[00] 2022-05-27 09:25:20 Using server version 10.7.3-MariaDB
mariabackup based on MariaDB server 10.7.3-MariaDB Linux (x86_64)
[00] 2022-05-27 09:25:20 uses posix_fadvise().
[00] 2022-05-27 09:25:20 cd to /var/lib/mysql/
[00] 2022-05-27 09:25:20 Loading plugins
[00] 2022-05-27 09:25:20 open files limit requested 0, set to 1024
.....
.....
[00] 2022-05-27 09:25:22         ...done
[00] 2022-05-27 09:25:22 Writing xtrabackup_info
[00] 2022-05-27 09:25:22         ...done
[00] 2022-05-27 09:25:22 Redo log (from LSN 44620 to 44632) was copied.
[00] 2022-05-27 09:25:22 completed OK!

[root@www ~]#
ll /home/mariadb_backup

total 12736
-rw-r-----. 1 root root   417792 May 27 09:25 aria_log.00000001
-rw-r-----. 1 root root       52 May 27 09:25 aria_log_control
-rw-r-----. 1 root root      403 May 27 09:25 backup-my.cnf
-rw-r-----. 1 root root      962 May 27 09:25 ib_buffer_pool
-rw-r-----. 1 root root 12582912 May 27 09:25 ibdata1
-rw-r-----. 1 root root     2560 May 27 09:25 ib_logfile0
drwx------. 2 root root     4096 May 27 09:25 mysql
drwx------. 2 root root       20 May 27 09:25 performance_schema
drwx------. 2 root root     8192 May 27 09:25 sys
drwx------. 2 root root       64 May 27 09:25 test_database
-rw-r-----. 1 root root       73 May 27 09:25 xtrabackup_checkpoints
-rw-r-----. 1 root root      429 May 27 09:25 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.
# stop MariaDB and remove existing data

[root@node01 ~]#
systemctl stop mariadb

[root@node01 ~]#
rm -rf /var/lib/mysql/*
# transfered backup data

[root@node01 ~]#
ll mariadb_backup.tar.gz

-rw-r--r--. 1 fedora fedora 540738 May 27 09:46 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 10.7.3-MariaDB Linux (x86_64)
[00] 2022-05-27 09:48:10 cd to /root/mariadb_backup/
[00] 2022-05-27 09:48:10 open files limit requested 0, set to 1024
[00] 2022-05-27 09:48:10 Loading plugins from provider_lz4=provider_lz4;provider_lzma=provider_lzma
[00] 2022-05-27 09:48:10 Loading plugins
[00] 2022-05-27 09:48:10         Plugin parameter :  '--plugin_load=provider_lz4=provider_lz4;provider_lzma=provider_lzma'
[00] 2022-05-27 09:48:10         Plugin parameter :  '--prepare'
[00] 2022-05-27 09:48:10         Plugin parameter :  '--target-dir'
[00] 2022-05-27 09:48:10         Plugin parameter :  '/root/mariadb_backup'
[00] 2022-05-27 09:48:10 This target seems to be not prepared yet.
[00] 2022-05-27 09:48:10 mariabackup: using the following InnoDB configuration for recovery:
[00] 2022-05-27 09:48:10 innodb_data_home_dir = .
[00] 2022-05-27 09:48:10 innodb_data_file_path = ibdata1:12M:autoextend
[00] 2022-05-27 09:48:10 innodb_log_group_home_dir = .
[00] 2022-05-27 09:48:10 InnoDB: Using Linux native AIO
[00] 2022-05-27 09:48:10 Starting InnoDB instance for recovery.
[00] 2022-05-27 09:48:10 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter)
2022-05-27  9:48:10 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2022-05-27  9:48:10 0 [Note] InnoDB: Number of transaction pools: 1
2022-05-27  9:48:10 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
2022-05-27  9:48:10 0 [Note] InnoDB: Using Linux native AIO
2022-05-27  9:48:10 0 [Note] InnoDB: Initializing buffer pool, total size = 104857600, chunk size = 104857600
2022-05-27  9:48:10 0 [Note] InnoDB: Completed initialization of buffer pool
2022-05-27  9:48:10 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=44620,44620
[00] 2022-05-27 09:48:10 Last binlog file , position 0
[00] 2022-05-27 09:48:10 completed OK!

# run restore

[root@node01 ~]#
mariabackup --copy-back --target-dir /root/mariadb_backup

mariabackup based on MariaDB server 10.7.3-MariaDB Linux (x86_64)
[01] 2022-05-27 09:48:34 Copying ibdata1 to /var/lib/mysql/./ibdata1
[01] 2022-05-27 09:48:34         ...done
[01] 2022-05-27 09:48:34 Copying ./mysql/innodb_table_stats.ibd to /var/lib/mysql/mysql/innodb_table_stats.ibd
[01] 2022-05-27 09:48:34         ...done
[01] 2022-05-27 09:48:34 Copying ./mysql/innodb_index_stats.ibd to /var/lib/mysql/mysql/innodb_index_stats.ibd
[01] 2022-05-27 09:48:34         ...done
.....
.....
[01] 2022-05-27 09:48:34 Copying ./ib_buffer_pool to /var/lib/mysql/ib_buffer_pool
[01] 2022-05-27 09:48:34         ...done
[01] 2022-05-27 09:48:34 Copying ./xtrabackup_info to /var/lib/mysql/xtrabackup_info
[01] 2022-05-27 09:48:34         ...done
[00] 2022-05-27 09:48:34 completed OK!

[root@node01 ~]#
chown -R mysql. /var/lib/mysql

[root@node01 ~]#
systemctl start mariadb

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