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MariaDB 10.11 : Backup2023/04/28

 
For Backup and Restore MariaDB Data, it's possible to run with [mariabackup].
[1] Install Backup tool.
root@www:~#
apt -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] 2023-04-28 07:42:48 Executing BACKUP STAGE END
[00] 2023-04-28 07:42:48 All tables unlocked
[00] 2023-04-28 07:42:48 Backup created in directory '/home/mariadb_backup/'
[00] 2023-04-28 07:42:48 Writing backup-my.cnf
[00] 2023-04-28 07:42:48         ...done
[00] 2023-04-28 07:42:48 Writing xtrabackup_info
[00] 2023-04-28 07:42:48         ...done
[00] 2023-04-28 07:42:48 Redo log (from LSN 49163 to 49179) was copied.
[00] 2023-04-28 07:42:48 completed OK!

root@www:~#
ll /home/mariadb_backup

total 12760
drwxr-xr-x 6 root root     4096 Apr 28 07:42 ./
drwxr-xr-x 5 root root     4096 Apr 28 07:42 ../
-rw-r----- 1 root root   417792 Apr 28 07:42 aria_log.00000001
-rw-r----- 1 root root       52 Apr 28 07:42 aria_log_control
-rw-r----- 1 root root      475 Apr 28 07:42 backup-my.cnf
-rw-r----- 1 root root    12304 Apr 28 07:42 ib_logfile0
-rw-r----- 1 root root 12582912 Apr 28 07:42 ibdata1
drwx------ 2 root root     4096 Apr 28 07:42 mysql/
drwx------ 2 root root     4096 Apr 28 07:42 performance_schema/
drwx------ 2 root root    12288 Apr 28 07:42 sys/
drwx------ 2 root root     4096 Apr 28 07:42 test_database/
-rw-r----- 1 root root       73 Apr 28 07:42 xtrabackup_checkpoints
-rw-r----- 1 root root      434 Apr 28 07:42 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 root root 706509 Apr 28 07:48 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 10.11.2-MariaDB debian-linux-gnu (x86_64)
[00] 2023-04-28 07:49:44 cd to /root/mariadb_backup/
[00] 2023-04-28 07:49:44 open files limit requested 0, set to 1024
[00] 2023-04-28 07:49:44 Loading plugins from provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzma=provider_lzma;provider_lzo=provider_lzo;provider_snappy=provider_snappy
[00] 2023-04-28 07:49:44 Loading plugins
[00] 2023-04-28 07:49:44         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] 2023-04-28 07:49:44         Plugin parameter :  '--prepare'
[00] 2023-04-28 07:49:44         Plugin parameter :  '--target-dir'
[00] 2023-04-28 07:49:44         Plugin parameter :  '/root/mariadb_backup'
[00] 2023-04-28 07:49:44 This target seems to be not prepared yet.
[00] 2023-04-28 07:49:44 mariabackup: using the following InnoDB configuration for recovery:
[00] 2023-04-28 07:49:44 innodb_data_home_dir = .
[00] 2023-04-28 07:49:44 innodb_data_file_path = ibdata1:12M:autoextend
[00] 2023-04-28 07:49:44 innodb_log_group_home_dir = .
[00] 2023-04-28 07:49:44 InnoDB: Using liburing
[00] 2023-04-28 07:49:44 Starting InnoDB instance for recovery.
[00] 2023-04-28 07:49:44 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter)
2023-04-28  7:49:44 0 [Note] InnoDB: Compressed tables use zlib 1.2.13
2023-04-28  7:49:44 0 [Note] InnoDB: Number of transaction pools: 1
2023-04-28  7:49:44 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
2023-04-28  7:49:44 0 [Note] InnoDB: Using liburing
2023-04-28  7:49:44 0 [Note] InnoDB: Initializing buffer pool, total size = 100.000MiB, chunk size = 100.000MiB
2023-04-28  7:49:44 0 [Note] InnoDB: Completed initialization of buffer pool
2023-04-28  7:49:44 0 [Note] InnoDB: Buffered log writes (block size=512 bytes)
[00] 2023-04-28 07:49:44 Last binlog file , position 0
[00] 2023-04-28 07:49:44 completed OK!

# run restore

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


.....
.....

[01] 2023-04-28 07:50:09 Copying ./mysql/proc.MAI to /var/lib/mysql/mysql/proc.MAI
[01] 2023-04-28 07:50:09         ...done
[01] 2023-04-28 07:50:09 Copying ./mysql/time_zone_transition_type.frm to /var/lib/mysql/mysql/time_zone_transition_type.frm
[01] 2023-04-28 07:50:09         ...done
[01] 2023-04-28 07:50:09 Copying ./mysql/tables_priv.MAI to /var/lib/mysql/mysql/tables_priv.MAI
[01] 2023-04-28 07:50:09         ...done
[01] 2023-04-28 07:50:09 Copying ./aria_log_control to /var/lib/mysql/aria_log_control
[01] 2023-04-28 07:50:09         ...done
[01] 2023-04-28 07:50:09 Copying ./performance_schema/db.opt to /var/lib/mysql/performance_schema/db.opt
[01] 2023-04-28 07:50:09         ...done
[00] 2023-04-28 07:50:09 completed OK!

root@node01:~#
chown -R mysql:mysql /var/lib/mysql

root@node01:~#
systemctl start mariadb

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