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MySQL 利用XtraBackup进行增量备份详细过程汇总

modelmd

modelmd

2015-03-21

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1，创建mysql备份用户

mysql -uroot --password="" -e"CREATE USER 'backup'@'192.168.%' IDENTIFIED BY '123456'";

mysql -uroot --password="" -e"GRANT RELOAD, LOCK TABLES, REPLICATION CLIENT, CREATE TABLESPACE, SUPERON *.* TO 'backup'@'192.168.%'";

 

2，xtrabackup进行全量备份

备份命令：

xtrabackup --defaults-file=/etc/my.cnf--user=backup --password="123456" --port=3306 --backup--target-dir=/data/backups/mysql/full_incre_$(date +%Y%m%d)

PS: 2>/tmp/fullbackup.log 将备份信息放入文件中。

 


 备份过程信息如下：
[root@data01 ~]# xtrabackup--defaults-file=/etc/my.cnf --user=backup --password="123456"--port=3306 --backup --target-dir=/data/backups/mysql/full_incre_$(date+%Y%m%d)
xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /home/data/mysql/data
xtrabackup: open files limit requested 0,set to 1024
xtrabackup: using the following InnoDBconfiguration:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir = ./
xtrabackup:  innodb_log_files_in_group = 3
xtrabackup:  innodb_log_file_size = 67108864
>> log scanned up to (423920168)
xtrabackup: Generating a list of tablespaces
[01] Copying ./IBdata1 to/data/backups/mysql/full_incre_20150319/IBdata1
>> log scanned up to (423920168)
>> log scanned up to (423920168)
[01]      ...done
[01] Copying ./IBdata2 to/data/backups/mysql/full_incre_20150319/IBdata2
>> log scanned up to (423920168)
>> log scanned up to (423920168)
[01]      ...done
[01] Copying ./mysql/slave_master_info.ibdto /data/backups/mysql/full_incre_20150319/mysql/slave_master_info.ibd
[01]      ...done
[01] Copying ./mysql/slave_relay_log_info.ibdto /data/backups/mysql/full_incre_20150319/mysql/slave_relay_log_info.ibd
[01]      ...done
[01] Copying ./mysql/innodb_index_stats.ibdto /data/backups/mysql/full_incre_20150319/mysql/innodb_index_stats.ibd
[01]      ...done
[01] Copying ./mysql/slave_worker_info.ibdto /data/backups/mysql/full_incre_20150319/mysql/slave_worker_info.ibd
[01]      ...done
[01] Copying ./mysql/innodb_table_stats.ibdto /data/backups/mysql/full_incre_20150319/mysql/innodb_table_stats.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest1.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest1.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest5.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest5.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest8.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest8.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest4.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest4.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest2.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest2.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest6.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest6.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest7.ibd to /data/backups/mysql/full_incre_20150319/sbtest/sbtest7.ibd
[01]      ...done
[01] Copying ./sbtest/sbtest3.ibd to/data/backups/mysql/full_incre_20150319/sbtest/sbtest3.ibd
[01]      ...done
[01] Copying ./test/t1.ibd to/data/backups/mysql/full_incre_20150319/test/t1.ibd
[01]      ...done
[01] Copying ./test/t3.ibd to/data/backups/mysql/full_incre_20150319/test/t3.ibd
[01]      ...done
[01] Copying ./test/t.ibd to/data/backups/mysql/full_incre_20150319/test/t.ibd
[01]      ...done
[01] Copying ./user_db/t1.ibd to/data/backups/mysql/full_incre_20150319/user_db/t1.ibd
[01]      ...done
[01] Copying ./user_db/test.ibd to/data/backups/mysql/full_incre_20150319/user_db/test.ibd
[01]      ...done
[01] Copying ./user_db/test2.ibd to/data/backups/mysql/full_incre_20150319/user_db/test2.ibd
[01]      ...done
[01] Copying ./user_db/t3.ibd to/data/backups/mysql/full_incre_20150319/user_db/t3.ibd
[01]      ...done
[01] Copying ./user_db/UC_USER.ibd to/data/backups/mysql/full_incre_20150319/user_db/UC_USER.ibd
>> log scanned up to (423920168)
[01]      ...done
[01] Copying ./user_db/t.ibd to/data/backups/mysql/full_incre_20150319/user_db/t.ibd
[01]      ...done
xtrabackup: The latest check point (forincremental): '423920168'
xtrabackup: Stopping log copying thread.
.>> log scanned up to (423920168)
 
xtrabackup: Transaction log of lsn(423920168) to (423920168) was copied.
[root@data01 ~]#

 

 

 

 

3，xtrabackup进行增量备份

3.1先录入一张表，实现第一次增量数据：

 

mysql> create table t4 select 'aaa' asa, 1 as b;
Query OK, 1 row affected (0.36 sec)
Records: 1 Duplicates: 0  Warnings: 0
 
mysql>
mysql> insert into t4 select 'bbb',2;
Query OK, 1 row affected (0.05 sec)
Records: 1 Duplicates: 0  Warnings: 0
 
mysql>

 

 


3.2 再进行增量备份1

xtrabackup --defaults-file=/etc/my.cnf--backup --user=backup --password="123456" --port=3306 --target-dir=/data/backups/mysql/incre_20150320/--incremental-basedir=/data/backups/mysql/full_incre_201503192>/tmp/incre_backup_1.log

 

查看备份日志信息：

 

[root@data01 ~]# more/tmp/incre_backup_1.log
xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )
incremental backup from 423920168 isenabled.
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /home/data/mysql/data
xtrabackup: open files limit requested 0,set to 1024
xtrabackup: using the following InnoDBconfiguration:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir = ./
xtrabackup:  innodb_log_files_in_group = 3
xtrabackup:  innodb_log_file_size = 67108864
>> log scanned up to (423925813)
xtrabackup: Generating a list oftablespaces
xtrabackup: using the full scan forincremental backup
[01] Copying ./IBdata1 to/data/backups/mysql/incre_20150320/IBdata1.delta
>> log scanned up to (423925813)
[01]      ...done
[01] Copying ./IBdata2 to/data/backups/mysql/incre_20150320/IBdata2.delta
>> log scanned up to (423925813)
[01]      ...done
>> log scanned up to (423925813)
[01] Copying ./mysql/slave_master_info.ibdto /data/backups/mysql/incre_20150320/mysql/slave_master_info.ibd.delta
[01]      ...done
[01] Copying./mysql/slave_relay_log_info.ibd to/data/backups/mysql/incre_20150320/mysql/slave_relay_log_info.ibd.delta
[01]      ...done
[01] Copying ./mysql/innodb_index_stats.ibdto /data/backups/mysql/incre_20150320/mysql/innodb_index_stats.ibd.delta
[01]      ...done
[01] Copying ./mysql/slave_worker_info.ibdto /data/backups/mysql/incre_20150320/mysql/slave_worker_info.ibd.delta
[01]      ...done
[01] Copying ./mysql/innodb_table_stats.ibdto /data/backups/mysql/incre_20150320/mysql/innodb_table_stats.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest1.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest1.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest5.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest5.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest8.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest8.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest4.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest4.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest2.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest2.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest6.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest6.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest7.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest7.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest3.ibd to/data/backups/mysql/incre_20150320/sbtest/sbtest3.ibd.delta
[01]      ...done
[01] Copying ./test/t1.ibd to/data/backups/mysql/incre_20150320/test/t1.ibd.delta
[01]      ...done
[01] Copying ./test/t4.ibd to/data/backups/mysql/incre_20150320/test/t4.ibd.delta
[01]      ...done
[01] Copying ./test/t3.ibd to/data/backups/mysql/incre_20150320/test/t3.ibd.delta
[01]      ...done
[01] Copying ./test/t.ibd to/data/backups/mysql/incre_20150320/test/t.ibd.delta
[01]      ...done
[01] Copying ./user_db/t1.ibd to /data/backups/mysql/incre_20150320/user_db/t1.ibd.delta
[01]      ...done
[01] Copying ./user_db/test.ibd to/data/backups/mysql/incre_20150320/user_db/test.ibd.delta
[01]      ...done
>> log scanned up to (423925813)
[01] Copying ./user_db/test2.ibd to /data/backups/mysql/incre_20150320/user_db/test2.ibd.delta
[01]      ...done
[01] Copying ./user_db/t3.ibd to/data/backups/mysql/incre_20150320/user_db/t3.ibd.delta
[01]      ...done
[01] Copying ./user_db/UC_USER.ibd to /data/backups/mysql/incre_20150320/user_db/UC_USER.ibd.delta
[01]      ...done
[01] Copying ./user_db/t.ibd to/data/backups/mysql/incre_20150320/user_db/t.ibd.delta
[01]      ...done
xtrabackup: The latest check point (forincremental): '423925813'
xtrabackup: Stopping log copying thread.
.>> log scanned up to (423925813)
 
xtrabackup: Transaction log of lsn(423925813) to (423925813) was copied.
 

 

 


 

3.3 再建立表2，实现第二天增量数据

建立一张表t_incre_2：

 

mysql> use test;
Database changed
mysql> create table t_incre_2 select'cc' as a,2 as b;
Query OK, 1 row affected (0.25 sec)
Records: 1 Duplicates: 0  Warnings: 0
 
mysql> insert into t_incre_2 select'dd',2;
Query OK, 1 row affected (0.05 sec)
Records: 1 Duplicates: 0  Warnings: 0
 
mysql> select * from t_incre_2;
+----+---+
| a | b |
+----+---+
| cc | 2 |
| dd | 2 |
+----+---+
2 rows in set (0.05 sec)
 
mysql>

 

 


 

3.4 进行第二天的增量备份

备份命令：

xtrabackup --defaults-file=/etc/my.cnf--backup --user=backup --password="123456" --port=3306 --target-dir=/data/backups/mysql/incre_20150321/--incremental-basedir=/data/backups/mysql/incre_20150320 2>/tmp/incre_backup_2.log

 

备份信息记录如下：

 

[root@data01 ~]# more /tmp/incre_backup_2.log
xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )
incremental backup from 423925813 isenabled.
xtrabackup: uses posix_fadvise().
xtrabackup: cd to /home/data/mysql/data
xtrabackup: open files limit requested 0,set to 1024
xtrabackup: using the following InnoDBconfiguration:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir = ./
xtrabackup:  innodb_log_files_in_group = 3
xtrabackup:  innodb_log_file_size = 67108864
>> log scanned up to (423931610)
xtrabackup: Generating a list oftablespaces
xtrabackup: using the full scan forincremental backup
[01] Copying ./IBdata1 to/data/backups/mysql/incre_20150321/IBdata1.delta
>> log scanned up to (423931610)
>> log scanned up to (423931610)
>> log scanned up to (423931610)
>> log scanned up to (423931610)
>> log scanned up to (423931610)
[01]      ...done
>> log scanned up to (423931610)
[01] Copying ./IBdata2 to/data/backups/mysql/incre_20150321/IBdata2.delta
>> log scanned up to (423931610)
>> log scanned up to (423931610)
[01]      ...done
[01] Copying ./mysql/slave_master_info.ibdto /data/backups/mysql/incre_20150321/mysql/slave_master_info.ibd.delta
[01]      ...done
[01] Copying./mysql/slave_relay_log_info.ibd to/data/backups/mysql/incre_20150321/mysql/slave_relay_log_info.ibd.delta
[01]      ...done
>> log scanned up to (423931610)
[01] Copying ./mysql/innodb_index_stats.ibdto /data/backups/mysql/incre_20150321/mysql/innodb_index_stats.ibd.delta
[01]      ...done
[01] Copying ./mysql/slave_worker_info.ibdto /data/backups/mysql/incre_20150321/mysql/slave_worker_info.ibd.delta
[01]      ...done
[01] Copying ./mysql/innodb_table_stats.ibdto /data/backups/mysql/incre_20150321/mysql/innodb_table_stats.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest1.ibd to/data/backups/mysql/incre_20150321/sbtest/sbtest1.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest5.ibd to /data/backups/mysql/incre_20150321/sbtest/sbtest5.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest8.ibd to/data/backups/mysql/incre_20150321/sbtest/sbtest8.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest4.ibd to/data/backups/mysql/incre_20150321/sbtest/sbtest4.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest2.ibd to/data/backups/mysql/incre_20150321/sbtest/sbtest2.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest6.ibd to /data/backups/mysql/incre_20150321/sbtest/sbtest6.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest7.ibd to/data/backups/mysql/incre_20150321/sbtest/sbtest7.ibd.delta
[01]      ...done
[01] Copying ./sbtest/sbtest3.ibd to/data/backups/mysql/incre_20150321/sbtest/sbtest3.ibd.delta
[01]      ...done
[01] Copying ./test/t1.ibd to/data/backups/mysql/incre_20150321/test/t1.ibd.delta
[01]      ...done
[01] Copying ./test/t4.ibd to/data/backups/mysql/incre_20150321/test/t4.ibd.delta
[01]      ...done
[01] Copying ./test/t3.ibd to/data/backups/mysql/incre_20150321/test/t3.ibd.delta
[01]      ...done
>> log scanned up to (423931610)
[01] Copying ./test/t.ibd to/data/backups/mysql/incre_20150321/test/t.ibd.delta
[01]      ...done
[01] Copying ./test/t_incre_2.ibd to/data/backups/mysql/incre_20150321/test/t_incre_2.ibd.delta
[01]      ...done
[01] Copying ./user_db/t1.ibd to/data/backups/mysql/incre_20150321/user_db/t1.ibd.delta
[01]      ...done
[01] Copying ./user_db/test.ibd to /data/backups/mysql/incre_20150321/user_db/test.ibd.delta
[01]      ...done
[01] Copying ./user_db/test2.ibd to/data/backups/mysql/incre_20150321/user_db/test2.ibd.delta
[01]      ...done
[01] Copying ./user_db/t3.ibd to/data/backups/mysql/incre_20150321/user_db/t3.ibd.delta
[01]      ...done
[01] Copying ./user_db/UC_USER.ibd to/data/backups/mysql/incre_20150321/user_db/UC_USER.ibd.delta
[01]      ...done
[01] Copying ./user_db/t.ibd to/data/backups/mysql/incre_20150321/user_db/t.ibd.delta
[01]      ...done
>> log scanned up to (423931610)
xtrabackup: The latest check point (forincremental): '423931610'
xtrabackup: Stopping log copying thread.
.>> log scanned up to (423931610)
 
xtrabackup: Transaction log of lsn(423931610) to (423931610) was copied.


 

 

4，xtrabackup进行增量恢复

4.1为了验证比对，先删除两个增量备份前表里面的数据

 

mysql> delete from t4;
Query OK, 2 rows affected (0.05 sec)
 
mysql> delete from t_incre_2;
Query OK, 2 rows affected (0.04 sec)
 
mysql> select * from t4;
Empty set (0.00 sec)
 
mysql> select * from t_incre_2;
Empty set (0.00 sec)
 
mysql>

 

 


 

4.2开始全备份恢复PREPARE THE BASE BACKUP

备份命令如下：

xtrabackup --defaults-file=/etc/my.cnf--prepare --user=backup --password="123456"  --apply-log-only--target-dir=/data/backups/mysql/full_incre_20150319 2>/tmp/full_restore.log

 


备份信息记录如下：

 

[root@data01 mysql]# xtrabackup--defaults-file=/etc/my.cnf --prepare --user=backup--password="123456" --apply-log-only --target-dir=/data/backups/mysql/full_incre_20150319
xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )
xtrabackup: cd to/data/backups/mysql/full_incre_20150319
xtrabackup: This target seems to be alreadyprepared.
xtrabackup: notice: xtrabackup_logfile wasalready used to '--prepare'.
xtrabackup: using the following InnoDBconfiguration for recovery:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir = ./
xtrabackup:  innodb_log_files_in_group = 3
xtrabackup:  innodb_log_file_size = 67108864
xtrabackup: using the following InnoDBconfiguration for recovery:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir = ./
xtrabackup:  innodb_log_files_in_group = 3
xtrabackup:  innodb_log_file_size = 67108864
xtrabackup: Starting InnoDB instance forrecovery.
xtrabackup: Using 104857600 bytes forbuffer pool (set by --use-memory parameter)
InnoDB: Using atomics to ref count bufferpool pages
InnoDB: The InnoDB memory heap is disabled
InnoDB: Mutexes and rw_locks use GCC atomicbuiltins
InnoDB: Memory barrier is not used
InnoDB: Compressed tables use zlib 1.2.3
InnoDB: Using CPU crc32 instructions
InnoDB: Initializing buffer pool, size =100.0M
InnoDB: Completed initialization of bufferpool
InnoDB: Setting log file ./ib_logfile101size to 64 MB
InnoDB: Setting log file ./ib_logfile1 sizeto 64 MB
InnoDB: Setting log file ./ib_logfile2 sizeto 64 MB
InnoDB: Renaming log file ./ib_logfile101to ./ib_logfile0
InnoDB: New log files created,LSN=423920168
InnoDB: Highest supported file format isBarracuda.
 
[notice (again)]
  Ifyou use binary log and don't use any hack of group commit,
  thebinary log position seems to be:
InnoDB: Last MySQL binlog file position 0915, file name mysql-bin.000053
 
xtrabackup: starting shutdown withinnodb_fast_shutdown = 1
InnoDB: Starting shutdown...
InnoDB: Shutdown completed; log sequencenumber 423920652
[root@data01 mysql]#


 

 

4.3 恢复到第一次增量的时刻

恢复命令：

xtrabackup --defaults-file=/etc/my.cnf--prepare --user=backup --password="123456"  --apply-log-only--target-dir=/data/backups/mysql/full_incre_20150319--incremental-dir=/data/backups/mysql/incre_20150320 2>/tmp/restore_incre_1.log

恢复过程：

 

[root@data01 mysql]# more /tmp/restore_incre_1.log
xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )
incremental backup from 423920168 isenabled.
xtrabackup: cd to/data/backups/mysql/full_incre_20150319
xtrabackup: This target seems to be alreadyprepared.
xtrabackup: xtrabackup_logfile detected:size=2097152, start_lsn=(423925813)
xtrabackup: using the following InnoDBconfiguration for recovery:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir =/data/backups/mysql/incre_20150320
xtrabackup:  innodb_log_files_in_group = 1
xtrabackup:  innodb_log_file_size = 2097152
xtrabackup: Generating a list oftablespaces
xtrabackup: page size for /data/backups/mysql/incre_20150320/IBdata2.deltais 16384 bytes
Applying/data/backups/mysql/incre_20150320/IBdata2.delta to ./IBdata2...
xtrabackup: page size for/data/backups/mysql/incre_20150320/IBdata1.delta is 16384 bytes
Applying /data/backups/mysql/incre_20150320/IBdata1.deltato ./IBdata1...
xtrabackup: page size for/data/backups/mysql/incre_20150320/mysql/slave_worker_info.ibd.delta is 16384bytes
Applying/data/backups/mysql/incre_20150320/mysql/slave_worker_info.ibd.delta to./mysql/slave_worker_info.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/mysql/innodb_table_stats.ibd.delta is 16384bytes
Applying/data/backups/mysql/incre_20150320/mysql/innodb_table_stats.ibd.delta to./mysql/innodb_table_stats.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/mysql/innodb_index_stats.ibd.delta is 16384bytes
Applying/data/backups/mysql/incre_20150320/mysql/innodb_index_stats.ibd.delta to./mysql/innodb_index_stats.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/mysql/slave_relay_log_info.ibd.delta is16384 bytes
Applying/data/backups/mysql/incre_20150320/mysql/slave_relay_log_info.ibd.delta to./mysql/slave_relay_log_info.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/mysql/slave_master_info.ibd.delta is 16384bytes
Applying/data/backups/mysql/incre_20150320/mysql/slave_master_info.ibd.delta to./mysql/slave_master_info.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest4.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest4.ibd.delta to./sbtest/sbtest4.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest3.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest3.ibd.delta to./sbtest/sbtest3.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest1.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest1.ibd.delta to./sbtest/sbtest1.ibd...
xtrabackup: page size for /data/backups/mysql/incre_20150320/sbtest/sbtest7.ibd.deltais 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest7.ibd.delta to./sbtest/sbtest7.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest6.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest6.ibd.delta to./sbtest/sbtest6.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest8.ibd.delta is 16384 bytes
Applying /data/backups/mysql/incre_20150320/sbtest/sbtest8.ibd.deltato ./sbtest/sbtest8.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest2.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest2.ibd.delta to./sbtest/sbtest2.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/sbtest/sbtest5.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/sbtest/sbtest5.ibd.delta to./sbtest/sbtest5.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/test/t3.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/test/t3.ibd.delta to ./test/t3.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/test/t.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/test/t.ibd.delta to ./test/t.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/test/t4.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/test/t4.ibd.delta to ./test/t4.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/test/t1.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/test/t1.ibd.delta to ./test/t1.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/user_db/t3.ibd.delta is 16384 bytes
Applying /data/backups/mysql/incre_20150320/user_db/t3.ibd.deltato ./user_db/t3.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/user_db/t.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/user_db/t.ibd.delta to ./user_db/t.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/user_db/test2.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/user_db/test2.ibd.delta to./user_db/test2.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/user_db/test.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/user_db/test.ibd.delta to./user_db/test.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/user_db/t1.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/user_db/t1.ibd.delta to ./user_db/t1.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150320/user_db/UC_USER.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150320/user_db/UC_USER.ibd.delta to./user_db/UC_USER.ibd...
xtrabackup: using the following InnoDBconfiguration for recovery:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir =/data/backups/mysql/incre_20150320
xtrabackup:  innodb_log_files_in_group = 1
xtrabackup:  innodb_log_file_size = 2097152
xtrabackup: Starting InnoDB instance forrecovery.
xtrabackup: Using 104857600 bytes forbuffer pool (set by --use-memory parameter)
InnoDB: Using atomics to ref count bufferpool pages
InnoDB: The InnoDB memory heap is disabled
InnoDB: Mutexes and rw_locks use GCC atomicbuiltins
InnoDB: Memory barrier is not used
InnoDB: Compressed tables use zlib 1.2.3
InnoDB: Using CPU crc32 instructions
InnoDB: Initializing buffer pool, size = 100.0M
InnoDB: Completed initialization of bufferpool
InnoDB: Highest supported file format isBarracuda.
InnoDB: The log sequence numbers 423920652and 423920652 in ibdata files do not match the log sequence number 423925813 inthe ib_logfiles!
InnoDB: Database was not shutdown normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information fromthe .ibd files...
InnoDB: Restoring possible half-writtendata pages
InnoDB: from the doublewrite buffer...
InnoDB: Last MySQL binlog file position 0915, file name mysql-bin.000053
 
[notice (again)]
  Ifyou use binary log and don't use any hack of group commit,
  thebinary log position seems to be:
InnoDB: Last MySQL binlog file position 0915, file name mysql-bin.000053
 
xtrabackup: starting shutdown withinnodb_fast_shutdown = 1
InnoDB: Starting shutdown...
InnoDB: Shutdown completed; log sequencenumber 423925813


 

 

4.4 恢复到第二次增量备份前面：

恢复命令：

xtrabackup --defaults-file=/etc/my.cnf--prepare --user=backup --password="123456"  --apply-log-only --target-dir=/data/backups/mysql/full_incre_20150319--incremental-dir=/data/backups/mysql/incre_201503212>/tmp/restore_incre_2.log

 

恢复过程：

 

[root@data01 mysql]# more/tmp/restore_incre_2.log
xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )
incremental backup from 423925813 isenabled.
xtrabackup: cd to/data/backups/mysql/full_incre_20150319
xtrabackup: This target seems to be alreadyprepared.
xtrabackup: xtrabackup_logfile detected:size=2097152, start_lsn=(423931610)
xtrabackup: using the following InnoDBconfiguration for recovery:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir =/data/backups/mysql/incre_20150321
xtrabackup:  innodb_log_files_in_group = 1
xtrabackup:  innodb_log_file_size = 2097152
xtrabackup: Generating a list oftablespaces
xtrabackup: page size for/data/backups/mysql/incre_20150321/IBdata2.delta is 16384 bytes
Applying /data/backups/mysql/incre_20150321/IBdata2.deltato ./IBdata2...
xtrabackup: page size for/data/backups/mysql/incre_20150321/IBdata1.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/IBdata1.delta to ./IBdata1...
xtrabackup: page size for /data/backups/mysql/incre_20150321/mysql/slave_worker_info.ibd.deltais 16384 bytes
Applying/data/backups/mysql/incre_20150321/mysql/slave_worker_info.ibd.delta to./mysql/slave_worker_info.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/mysql/innodb_table_stats.ibd.delta is 16384bytes
Applying/data/backups/mysql/incre_20150321/mysql/innodb_table_stats.ibd.delta to./mysql/innodb_table_stats.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/mysql/innodb_index_stats.ibd.delta is 16384bytes
Applying/data/backups/mysql/incre_20150321/mysql/innodb_index_stats.ibd.delta to./mysql/innodb_index_stats.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/mysql/slave_relay_log_info.ibd.delta is16384 bytes
Applying/data/backups/mysql/incre_20150321/mysql/slave_relay_log_info.ibd.delta to./mysql/slave_relay_log_info.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/mysql/slave_master_info.ibd.delta is 16384bytes
Applying /data/backups/mysql/incre_20150321/mysql/slave_master_info.ibd.deltato ./mysql/slave_master_info.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest4.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest4.ibd.delta to./sbtest/sbtest4.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest3.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest3.ibd.delta to./sbtest/sbtest3.ibd...
xtrabackup: page size for /data/backups/mysql/incre_20150321/sbtest/sbtest1.ibd.deltais 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest1.ibd.delta to./sbtest/sbtest1.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest7.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest7.ibd.delta to./sbtest/sbtest7.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest6.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest6.ibd.delta to./sbtest/sbtest6.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest8.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest8.ibd.delta to./sbtest/sbtest8.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest2.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest2.ibd.delta to./sbtest/sbtest2.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/sbtest/sbtest5.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/sbtest/sbtest5.ibd.delta to./sbtest/sbtest5.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/test/t3.ibd.delta is 16384 bytes
Applying /data/backups/mysql/incre_20150321/test/t3.ibd.deltato ./test/t3.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/test/t_incre_2.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/test/t_incre_2.ibd.delta to./test/t_incre_2.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/test/t.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/test/t.ibd.delta to ./test/t.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/test/t4.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/test/t4.ibd.delta to ./test/t4.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/test/t1.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/test/t1.ibd.delta to ./test/t1.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/user_db/t3.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/user_db/t3.ibd.delta to ./user_db/t3.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/user_db/t.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/user_db/t.ibd.delta to ./user_db/t.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/user_db/test2.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/user_db/test2.ibd.delta to./user_db/test2.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/user_db/test.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/user_db/test.ibd.delta to./user_db/test.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/user_db/t1.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/user_db/t1.ibd.delta to ./user_db/t1.ibd...
xtrabackup: page size for/data/backups/mysql/incre_20150321/user_db/UC_USER.ibd.delta is 16384 bytes
Applying/data/backups/mysql/incre_20150321/user_db/UC_USER.ibd.delta to./user_db/UC_USER.ibd...
xtrabackup: using the following InnoDBconfiguration for recovery:
xtrabackup:  innodb_data_home_dir = ./
xtrabackup:  innodb_data_file_path =IBdata1:128M;IBdata2:128M:autoextend
xtrabackup:  innodb_log_group_home_dir =/data/backups/mysql/incre_20150321
xtrabackup:  innodb_log_files_in_group = 1
xtrabackup:  innodb_log_file_size = 2097152
xtrabackup: Starting InnoDB instance forrecovery.
xtrabackup: Using 104857600 bytes forbuffer pool (set by --use-memory parameter)
InnoDB: Using atomics to ref count bufferpool pages
InnoDB: The InnoDB memory heap is disabled
InnoDB: Mutexes and rw_locks use GCC atomicbuiltins
InnoDB: Memory barrier is not used
InnoDB: Compressed tables use zlib 1.2.3
InnoDB: Using CPU crc32 instructions
InnoDB: Initializing buffer pool, size =100.0M
InnoDB: Completed initialization of bufferpool
InnoDB: Highest supported file format isBarracuda.
InnoDB: The log sequence numbers 423925813and 423925813 in ibdata files do not match the log sequence number 423931610 inthe ib_logfiles!
InnoDB: Database was not shutdown normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information fromthe .ibd files...
InnoDB: Restoring possible half-writtendata pages
InnoDB: from the doublewrite buffer...
InnoDB: Last MySQL binlog file position 0915, file name mysql-bin.000053
 
[notice (again)]
  Ifyou use binary log and don't use any hack of group commit,
  thebinary log position seems to be:
InnoDB: Last MySQL binlog file position 0915, file name mysql-bin.000053
 
xtrabackup: starting shutdown withinnodb_fast_shutdown = 1
InnoDB: Starting shutdown...
InnoDB: Shutdown completed; log sequencenumber 423931610
[root@data01 mysql]#


 

 

4.5 恢复整个库

恢复命令：

xtrabackup --defaults-file=/etc/my.cnf--prepare --user=backup --password="123456"--target-dir=/data/backups/mysql/full_incre_20150319 2>/tmp/restore_end_3.log

停止mysql服务：

service mysqld5612 stop

开始rsync数据文件：

cd /data/backups/mysql/full_incre_20150319

rsync -rvt --exclude'xtrabackup_checkpoints' --exclude 'xtrabackup_logfile'  ./ /home/data/mysql/data

授予mysql访问权限：

chown -R mysql:mysql /home/data/mysql/data

启动mysql服务：

service mysqld5612 start

 


4.6，验证

登录mysql，看到以前在备份之后删除的t4以及t_incre_2表的数据已经通过2次增量备份恢复过来了，如下所示：

 

mysql> select * from t4;
+-----+---+
| a  | b |
+-----+---+
| aaa | 1 |
| bbb | 2 |
+-----+---+
2 rows in set (0.05 sec)
 
mysql> select * from t_incre_2;
+----+---+
| a | b |
+----+---+
| cc | 2 |
| dd | 2 |
+----+---+
2 rows in set (0.06 sec)
 
mysql>

mysql xtrabackup 增量备份 log文件 data

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万幸，这份数据是平台上某些商品的价格，基本上是有限个商品，然后价格值也都是固定的，之前有对这个价格表进行备份，于是给他直接重新导入了一份价格表的数据，这个问题也算是解决了。新建一个实例，全库还原，然后应用备份的binlog，一直去追，追到数据被该坏的时间点

jazywoo在路上 2020-11-11

MySQL外键约束的实例讲解

MySQL的外键约束是用来在两个表之间建立链接的，其中一个表发生变化，另外一个表也发生变化。从这个特点来看，它主要是为了保证表数据的一致性和完整性的。也就是说，只要外键的每个非空值出现在指定的主键中，这个外键的内容就是正确的。

敏敏张 2020-11-11

MySQL用truncate命令快速清空一个数据库中的所有表

用文本编辑器把每条truncate语句前后的“|”替换为空字符，方便后面一次复制多条执行。truncate与drop是DDL语句，执行后无法回滚；delete是DML语句，可回滚。truncate会清空表中的所有行，但表结构及其约束、索引等保持不变；dro

世樹 2020-11-11

修改MySQL8.0 默认的数据目录(快捷操作无配置)

使用场景：我们使用的是阿里云，单独购买了数据盘，MySQL 8.0 数据库默认装在系统盘上，为了考虑安全性和空间问题，我们需要将默认的数据库目录更改到其它位置。操作系统：CentOS 7.6 数据库：MySQL 8.0 查看我本人更多原创文章，请点击

zry 2020-11-11
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