MariaDB 10.11 : バックアップ2024/02/02 |
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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。 |
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| [1] | 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。 |
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root@www:~ # mkdir /home/mariadb_backup root@www:~ # mariabackup --backup --target-dir /home/mariadb_backup -u root ..... ..... [00] 2024-02-02 13:52:29 mariabackup: The latest check point (for incremental): '49856' mariabackup: Stopping log copying thread [00] 2024-02-02 13:52:29 Executing BACKUP STAGE END [00] 2024-02-02 13:52:29 All tables unlocked [00] 2024-02-02 13:52:29 Backup created in directory '/home/mariadb_backup/' [00] 2024-02-02 13:52:29 Writing backup-my.cnf [00] 2024-02-02 13:52:29 ...done [00] 2024-02-02 13:52:29 Writing xtrabackup_info [00] 2024-02-02 13:52:29 ...done [00] 2024-02-02 13:52:29 Redo log (from LSN 49856 to 49872) was copied. [00] 2024-02-02 13:52:29 completed OK!root@www:~ # ls -l /home/mariadb_backup total 330 -rw-r----- 1 root wheel 417792 Feb 2 13:52 aria_log.00000001 -rw-r----- 1 root wheel 52 Feb 2 13:52 aria_log_control -rw-r----- 1 root wheel 423 Feb 2 13:52 backup-my.cnf -rw-r----- 1 root wheel 12304 Feb 2 13:52 ib_logfile0 -rw-r----- 1 root wheel 12582912 Feb 2 13:52 ibdata1 drwx------ 2 root wheel 90 Feb 2 13:52 mysql drwx------ 2 root wheel 3 Feb 2 13:52 performance_schema drwx------ 2 root wheel 106 Feb 2 13:52 sys drwx------ 2 root wheel 5 Feb 2 13:52 test_database -rw-r----- 1 root wheel 73 Feb 2 13:52 xtrabackup_checkpoints -rw-r----- 1 root wheel 432 Feb 2 13:52 xtrabackup_info |
| [2] | 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。 |
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# MariaDB を停止して既存データは削除 root@node01:~ # service mysql-server stop root@node01:~ # rm -rf /var/db/mysql/*
# 転送したバックアップデータ root@node01:~ # ls -l mariadb_backup.tar.gz -rw-r--r-- 1 freebsd freebsd 694655 Feb 2 14:01 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] 2024-02-02 14:03:18 cd to /root/mariadb_backup/ [00] 2024-02-02 14:03:18 open files limit requested 0, set to 116244 [00] 2024-02-02 14:03:18 Loading plugins from provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzma=provider_lzma [00] 2024-02-02 14:03:18 Loading plugins [00] 2024-02-02 14:03:18 Plugin parameter : '--plugin_load=provider_bzip2=provider_bzip2;provider_lz4=provider_lz4;provider_lzma=provider_lzma' [00] 2024-02-02 14:03:18 Plugin parameter : '--prepare' [00] 2024-02-02 14:03:18 Plugin parameter : '--target-dir' [00] 2024-02-02 14:03:18 Plugin parameter : '/root/mariadb_backup' [00] 2024-02-02 14:03:18 This target seems to be not prepared yet. [00] 2024-02-02 14:03:18 mariabackup: using the following InnoDB configuration for recovery: [00] 2024-02-02 14:03:18 innodb_data_home_dir = . [00] 2024-02-02 14:03:18 innodb_data_file_path = ibdata1:12M:autoextend [00] 2024-02-02 14:03:18 innodb_log_group_home_dir = . [00] 2024-02-02 14:03:18 Starting InnoDB instance for recovery. [00] 2024-02-02 14:03:18 mariabackup: Using 104857600 bytes for buffer pool (set by --use-memory parameter) 2024-02-02 14:03:18 0 [Note] InnoDB: Compressed tables use zlib 1.3 2024-02-02 14:03:18 0 [Note] InnoDB: Number of transaction pools: 1 2024-02-02 14:03:18 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions 2024-02-02 14:03:18 0 [Note] InnoDB: Initializing buffer pool, total size = 100.000MiB, chunk size = 100.000MiB 2024-02-02 14:03:18 0 [Note] InnoDB: Completed initialization of buffer pool 2024-02-02 14:03:18 0 [Note] InnoDB: End of log at LSN=49872 [00] 2024-02-02 14:03:18 Last binlog file , position 0 [00] 2024-02-02 14:03:18 completed OK! # リストア実行 root@node01:~ # mariabackup --copy-back --target-dir /root/mariadb_backup ..... ..... [01] 2024-02-02 14:04:33 Copying ./test_database/test_table.ibd to /var/db/mysql/test_database/test_table.ibd [01] 2024-02-02 14:04:33 ...done [01] 2024-02-02 14:04:33 Copying ./test_database/test_table.frm to /var/db/mysql/test_database/test_table.frm [01] 2024-02-02 14:04:33 ...done [01] 2024-02-02 14:04:33 Copying ./performance_schema/db.opt to /var/db/mysql/performance_schema/db.opt [01] 2024-02-02 14:04:33 ...done [00] 2024-02-02 14:04:33 completed OK!root@node01:~ # chown -R mysql:mysql /var/db/mysql root@node01:~ # service mysql-server start |
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