时间:2021-07-01 10:21:17 帮助过:10人阅读
************************************************************** --1.全备 ************************************************************** #mysqlbackup --defaults-file=/usr/local/mysql/my.cnf \ --host=127.0.0.1 --port=3306 --protocol=tcp \ --user=root --password=passwd123! --databases="wind" \ --with-timestamp --backup-dir=/backup \ --log-bin-index=/usr/local/mysql/mysql_logs/binary_log/mysqldb01-bin.index \ backup-and-apply-log ----NOTE: mysqlbackup: INFO: Could not find binlog index file. binlogs will not be copied for this backup. Point-In-Time-Recovery will not be possible. If this is online backup then server may not have started with --log-bin. You may specify its location with --log-bin-index option. #cat /backup/2015-04-01_09-39-09/meta/backup_variables.txt |grep 'lsn' end_lsn=70249846 start_lsn=70249472 /***************************参数 [backup_variables] apply_log_done=1 # 是否释放检测ibbackup_logfile文件(0表示没有,1表示已经释放) binlog_index=mysqldb01-bin.index #二进制日志索引文件 binlog_position=mysqldb01-bin.000011:338 #二进制日志文件大小 end_lsn=70249846 # 结束LSN点 has_external_plugins=0 #外部插件 is_compressed=0 #是否压缩(0:否,1:是) is_incremental=0 #是否是增量为增量备份文件(0:否,1:是) is_incremental_with_redo_log_only=0 只配置重做日志,当输入数据大小重做日志大小时,会有一场抛出 is_onlyinnodb=0 #是否只备份了innodb的表 is_partial=1 #是服务器备份还是部分备份(0表示全服务器备份,1表示部分备份) is_skip_unused_pages=0 meb_version=3.12.0 #版本号 start_lsn=70249472 #开始备份的LSN点 ***************************/ ************************************************************** ---2.增量备份 ************************************************************** mysqlbackup --defaults-file=/usr/local/mysql/my.cnf \ --host=127.0.0.1 --port=3306 --protocol=tcp \ --user=root --password=passwd123! --databases="wind" \ --with-timestamp --log-bin-index=/usr/local/mysql/mysql_logs/binary_log/mysqldb01-bin.index \ --incremental --start-lsn=70249846 \ --incremental-backup-dir=/backupinc backup mysqlbackup --defaults-file=/usr/local/mysql/my.cnf \ --host=127.0.0.1 --port=3306 --protocol=tcp \ --user=root --password=passwd123! --databases="wind" \ --with-timestamp --log-bin-index=/usr/local/mysql/mysql_logs/binary_log/mysqldb01-bin.index \ --incremental --start-lsn=138861169 \ --incremental-backup-dir=/backupinc backup ************************************************************** --3.还原指定表空间 ************************************************************** --3.1 合并增量备份到全备 ls /backupinc/ 2015-04-01_10-03-16 2015-04-01_10-11-51 mysqlbackup --backup-dir=/backup/2015-04-01_09-39-09 \ --incremental-backup-dir=/backupinc/2015-04-01_10-03-16 \ apply-incremental-backup mysqlbackup --backup-dir=/backup/2015-04-01_09-39-09 \ --incremental-backup-dir=/backupinc/2015-04-01_10-11-51 \ apply-incremental-backup --3.2 模拟删除指定表空间 #cat /usr/local/mysql/my.cnf |grep datadir datadir=/usr/local/mysql/data MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | jason | | mysql | | performance_schema | | test | | wind | +--------------------+ 6 rows in set (0.01 sec) MariaDB [wind]> select count(*) from t1; +----------+ | count(*) | +----------+ | 3000000 | +----------+ 1 row in set (0.60 sec) MariaDB [(none)]> drop database wind; Query OK, 1 row affected (0.24 sec) MariaDB [(none)]> commit; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | jason | | mysql | | performance_schema | | test | +--------------------+ 5 rows in set (0.00 sec) --3.3 还原指定表空间 mysqlbackup --defaults-file=/usr/local/mysql/my.cnf \ --datadir=/usr/local/mysql/data/ \ --log-bin-index=/usr/local/mysql/mysql_logs/binary_log/mysqldb01-bin.index \ --backup-dir=/backup/2015-04-01_09-39-09 \ --databases="wind" \ copy-back chown -R mysql /usr/local/mysql chgrp -R mysql /usr/local/mysql --3.4验证表空间恢复情况 MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | jason | | mysql | | performance_schema | | test | | wind | +--------------------+ 6 rows in set (0.01 sec) MariaDB [wind]> select count(*) from t1; +----------+ | count(*) | +----------+ | 3000000 | +----------+ 1 row in set (0.60 sec)