MariaDB 10.6 : バックアップ2022/05/13 |
|
MariaDB のデータベースを バックアップ/リストア する際は付属のツールで実行可能です。
|
|
| [1] | バックアップツールをインストールします。 |
|
root@www:~# apt -y install mariadb-backup
|
| [2] | バックアップを実行します。 例として、[/home/mariadb_backup] ディレクトリ配下にバックアップを取得します。 |
|
root@www:~# mkdir /home/mariadb_backup root@www:~# mariabackup --backup --target-dir /home/mariadb_backup -u root ..... ..... [00] 2022-05-13 05:02:29 All tables unlocked [00] 2022-05-13 05:02:29 Copying ib_buffer_pool to /home/mariadb_backup/ib_buffer_pool [00] 2022-05-13 05:02:29 ...done [00] 2022-05-13 05:02:29 Backup created in directory '/home/mariadb_backup/' [00] 2022-05-13 05:02:29 Writing backup-my.cnf [00] 2022-05-13 05:02:29 ...done [00] 2022-05-13 05:02:29 Writing xtrabackup_info [00] 2022-05-13 05:02:29 ...done [00] 2022-05-13 05:02:29 Redo log (from LSN 44620 to 44632) was copied. [00] 2022-05-13 05:02:29 completed OK!root@www:~# ll /home/mariadb_backup total 12744 drwxr-xr-x 6 root root 4096 May 13 05:02 ./ drwxr-xr-x 4 root root 4096 May 13 05:02 ../ -rw-r----- 1 root root 409600 May 13 05:02 aria_log.00000001 -rw-r----- 1 root root 52 May 13 05:02 aria_log_control -rw-r----- 1 root root 297 May 13 05:02 backup-my.cnf -rw-r----- 1 root root 962 May 13 05:02 ib_buffer_pool -rw-r----- 1 root root 2560 May 13 05:02 ib_logfile0 -rw-r----- 1 root root 12582912 May 13 05:02 ibdata1 drwx------ 2 root root 4096 May 13 05:02 mysql/ drwx------ 2 root root 4096 May 13 05:02 performance_schema/ drwx------ 2 root root 12288 May 13 05:02 sys/ drwx------ 2 root root 4096 May 13 05:02 test_database/ -rw-r----- 1 root root 73 May 13 05:02 xtrabackup_checkpoints -rw-r----- 1 root root 438 May 13 05:02 xtrabackup_info |
| [3] | バックアップしたデータを、他ホスト上の MariaDB サーバーへリストアします。 事前にバックアップしたデータを [tar] でまとめるなり [rsync] でそのまま転送する等して、バックアップデータをリストア先サーバーに転送しておいてください。 |
|
# MariaDB を停止して既存データは削除 root@node01:~# systemctl stop mariadb root@node01:~# rm -rf /var/lib/mysql/*
# 転送したバックアップデータ root@node01:~# ll mariadb_backup.tar.gz -rw-r--r-- 1 root root 554900 May 13 05:07 mariadb_backup.tar.gz root@node01:~# tar zxvf mariadb_backup.tar.gz # リストア事前タスク実行 ([completed OK] であれば OK) root@node01:~# mariabackup --prepare --target-dir /root/mariadb_backup [00] 2022-05-13 05:09:33 cd to /root/mariadb_backup/ [00] 2022-05-13 05:09:33 open files limit requested 0, set to 1024 [00] 2022-05-13 05:09:33 This target seems to be not prepared yet. [00] 2022-05-13 05:09:33 mariabackup: using the following InnoDB configuration for recovery: [00] 2022-05-13 05:09:33 innodb_data_home_dir = . [00] 2022-05-13 05:09:33 innodb_data_file_path = ibdata1:12M:autoextend [00] 2022-05-13 05:09:33 innodb_log_group_home_dir = . [00] 2022-05-13 05:09:33 Starting InnoDB instance for recovery. [00] 2022-05-13 05:09:33 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter) 2022-05-13 5:09:33 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2022-05-13 5:09:33 0 [Note] InnoDB: Number of pools: 1 2022-05-13 5:09:33 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions 2022-05-13 5:09:33 0 [Note] InnoDB: Initializing buffer pool, total size = 104857600, chunk size = 104857600 2022-05-13 5:09:33 0 [Note] InnoDB: Completed initialization of buffer pool 2022-05-13 5:09:33 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=44620,44620 [00] 2022-05-13 05:09:34 Last binlog file , position 0 [00] 2022-05-13 05:09:34 completed OK! # リストア実行 root@node01:~# mariabackup --copy-back --target-dir /root/mariadb_backup ..... ..... [01] 2022-05-13 05:09:47 ...done [01] 2022-05-13 05:09:47 Copying ./aria_log.00000001 to /var/lib/mysql/aria_log.00000001 [01] 2022-05-13 05:09:47 ...done [01] 2022-05-13 05:09:47 Copying ./ib_buffer_pool to /var/lib/mysql/ib_buffer_pool [01] 2022-05-13 05:09:47 ...done [00] 2022-05-13 05:09:47 completed OK!root@node01:~# chown -R mysql. /var/lib/mysql root@node01:~# systemctl start mariadb |
| Sponsored Link |