mysql数据库企业级备份

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–1.全备

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#mysqlbackup –defaults-file=/usr/local/mysql/my.cnf \
–host=127.0.0.1 –port=3306 –protocol=tcp \
–user=root –password=dengyu! –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/2015-09-17_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
*****************/

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—2.增量备份

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mysqlbackup –defaults-file=/usr/local/mysql/my.cnf \
–host=127.0.0.1 –port=3306 –protocol=tcp \
–user=root –password=dengyu! –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=dengyu! –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

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–3.还原指定表空间

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–3.1 合并增量备份到全备

ls /backupinc/
2015-09-17_10-03-16 2015-09-17_10-11-51

mysqlbackup –backup-dir=/backup/2015-09-17_09-39-09 \
–incremental-backup-dir=/backupinc/2015-09-17_10-03-16 \
apply-incremental-backup

mysqlbackup –backup-dir=/backup/2015-09-17_09-39-09 \
–incremental-backup-dir=/backupinc/2015-09-17_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/2015-09-17_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)