MySQL 採用Xtrabackup对数据库进行全库备份

1，xtrabackup简单介绍

关于数据库备份以及备份工具。參考：http://blog.itpub.net/26230597/viewspace-1460065/，这里来介绍xtrabackup已经怎样使用xtrabackup进行对数据库的全备份已经恢复。

2，xtrabackup下载

下载地址为：http://www.percona.com/downloads/XtraBackup/

Chorm浏览器以下。在“DOWNLOADPERCONA XTRABACKUP”以下，选择版本号号以及os版本号。有的浏览器打不开，可能会出现“No files found with current filters.”，那么就须要换个浏览器比方chrome就能够打开了。例如以下图1.png所看到的：

也能够直接在linux以下是用wget的方式下载：

wget http://www.percona.com/downloads/XtraBackup/XtraBackup-2.2.9/binary/tarball/percona-xtrabackup-2.2.9-5067-Linux-x86_64.tar.gz

3，xtrabackup安装

3.1配置datadir

先check下是否已经配置datadir,检查是否有mysql服务。有的话就在my.cnf配置文件里面设置datadir

[root@data01 ~]# more /etc/my.cnf |grepdatadir

[root@data01 ~]#

Ok，看到没有配置datadir，去my.cnf里面配置

vim my.cnf

datadir = /home/data/mysql/data

再check下：

[root@data01 ~]# more /etc/my.cnf |grepdatadir

datadir = /home/data/mysql/data

[root@data01 ~]#

3.2解压

tar -xvfpercona-xtrabackup-2.2.9-5067-Linux-x86_64.tar.gz

3.3 copy到/usr/bin/

cp./percona-xtrabackup-2.2.9-Linux-x86_64/bin/innobackupex /usr/bin/innobackupex

cp./percona-xtrabackup-2.2.9-Linux-x86_64/bin/xtrabackup /usr/bin/xtrabackup

cp./percona-xtrabackup-2.2.9-Linux-x86_64/bin/xbcrypt /usr/bin/xbcrypt

cp ./percona-xtrabackup-2.2.9-Linux-x86_64/bin/xbstream/usr/bin/xbstream

PS：新版本号已经没有了innobackupex-1.5.1这个小插件了。

3.4 查看xtrabackup是否可用

[root@data01 ~]# innobackupex --help |more

Options:

--apply-log

Prepare a backup in BACKUP-DIR by applying the transaction log file

named "xtrabackup_logfile" located in the same directory.Also,

create new transaction logs. The InnoDB configuration is read from

the file "backup-my.cnf".

--backup-locks

This option controls if backup locks should be used instead of FLUSH

TABLES WITH READ LOCK on the backup stage. The option has no effect

when backup locks are not supported by the server. This option is

enabled by default, disable with --no-backup-locks.

3.5 源代码方式安装

參考：http://www.percona.com/doc/percona-xtrabackup/2.2/installation/compiling_xtrabackup.html

4，二大工具组件

xtrabackup：支持innodb存储引擎表。xtradb存储引擎表

innobackupex：支持innodb存储引擎表、xtradb存储引擎表、myisam存储引擎表。

5，一些重要參数

--defaults-file

同xtrabackup的--defaults-file參数

--apply-log

对xtrabackup的--prepare參数的封装

--copy-back

做数据恢复时将备份数据文件复制到MySQL服务器的datadir ；

--remote-host=HOSTNAME

通过ssh将备份数据存储到进程服务器上；

--stream=[tar]

备份文件输出格式, tar时使用tar4ibd , 该文件可在XtarBackup binary文件里获得.假设备份时有指定--stream=tar, 则tar4ibd文件所处文件夹一定要在$PATH中(因为使用的是tar4ibd去压缩, 在XtraBackup的binary包中可获得该文件)。

在使用參数stream=tar备份的时候，你的xtrabackup_logfile可能会暂时放在/tmp文件夹下。假设你备份的时候并发写入较大的话 xtrabackup_logfile可能会非常大(5G+)。非常可能会撑满你的/tmp文件夹。能够通过參数--tmpdir指定文件夹来解决问题。

--tmpdir=DIRECTORY

当有指定--remote-host or --stream时, 事务日志暂时存储的文件夹, 默认採用MySQL配置文件里所指定的暂时文件夹tmpdir

--redo-only--apply-log组,

强制备份日志时仅仅redo ,跳过rollback。这在做增量备份时非常必要。

--use-memory=#

该參数在prepare的时候使用，控制prepare时innodb实例使用的内存量，用来代替my.cnf中的buffer_pool_size值，假设你是独立服务器，并且内存足够大的话。为了加快备份恢复的效率。你能够调大--use-memory这个參数值

--throttle=IOS

同xtrabackup的--throttle參数

--sleep=是给ibbackup使用的，指定每备份1M数据，过程停止拷贝多少毫秒。也是为了在备份时尽量减小对正常业务的影响，详细能够查看ibbackup的手冊。

--compress[=LEVEL]

对备份数据迚行压缩，仅支持ibbackup，xtrabackup还没有实现。

--include=REGEXP

对 xtrabackup參数--tables的封装，也支持ibbackup。备份包括的库表。比如：--include="test.*"，意思是要备份 test库中全部的表。假设须要全备份。则省略这个參数。假设须要备份test库下的2个表：test1和test2,则写成：--include="test.test1|test.test2"。

也能够使用通配符，如：--include="test.test*"。

--databases=LIST

列出须要备份的databases。假设没有指定该參数。全部包括MyISAM和InnoDB表的database都会被备份。

--uncompress

解压备份的数据文件，支持ibbackup，xtrabackup还没有实现该功能。

--slave-info

备份从库, 加上--slave-info备份文件夹下会多生成一个xtrabackup_slave_info 文件, 这里会保存主日志文件以及偏移, 文件内容相似于:CHANGE MASTER TO MASTER_LOG_FILE='', MASTER_LOG_POS=0

--socket=SOCKET

指定mysql.sock所在位置，以便备份进程登录mysql.

--safe-slave-backup

则会暂停Slave的SQL线程,等待到没有打开的暂时表的时候開始备份.备份结束后SQL线程会自己主动启动,这样就能够确保一致性的复制状态.

6，xtrabackup全备份

6.1 全备份

仅仅备份不压缩：

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

备份压缩：

xtrabackup --defaults-file=/etc/my.cnf--user=root --password="" --port=3306 --backup --socket=/usr/local/mysql/mysql.sock--stream=tar --target-dir=/data/backups/mysql/$(date +%Y%m%d)/ |gzip >alldbfullbackup.tar.gz

參考：http://www.percona.com/doc/percona-xtrabackup/2.2/howtos/recipes_ibkx_compressed.html

备份步骤例如以下所看到的：

[root@data01 mysql]# xtrabackup--defaults-file=/etc/my.cnf --user=root --password="" --port=3306--backup --socket=/usr/local/mysql/mysql.sock --stream=tar--target-dir=/data/backups/mysql/$(date +%Y%m%d)/ |gzip > alldbfullbackup.tar.gz

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 (423916780)

xtrabackup: Generating a list oftablespaces

[01] Streaming ./IBdata1

>> log scanned up to (423916780)

[01] ...done

[01] Streaming ./IBdata2

>> log scanned up to (423916780)

[01] ...done

[01] Streaming./mysql/slave_master_info.ibd

[01] ...done

[01] Streaming./mysql/slave_relay_log_info.ibd

[01] ...done

[01] Streaming./mysql/innodb_index_stats.ibd

[01] ...done

[01] Streaming./mysql/slave_worker_info.ibd

[01] ...done

[01] Streaming./mysql/innodb_table_stats.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest1.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest5.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest8.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest4.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest2.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest6.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest7.ibd

[01] ...done

[01] Streaming ./sbtest/sbtest3.ibd

[01] ...done

[01] Streaming ./test/t1.ibd

[01] ...done

[01] Streaming ./test/t3.ibd

[01] ...done

[01] Streaming ./test/t.ibd

[01] ...done

[01] Streaming ./user_db/t1.ibd

[01] ...done

[01] Streaming ./user_db/test.ibd

[01] ...done

[01] Streaming ./user_db/test2.ibd

[01] ...done

[01] Streaming ./user_db/t3.ibd

>> log scanned up to (423916780)

[01] ...done

[01] Streaming ./user_db/UC_USER.ibd

>> log scanned up to (423916780)

[01] ...done

[01] Streaming ./user_db/t.ibd

[01] ...done

>> log scanned up to (423916780)

xtrabackup: The latest check point (forincremental): '423916780'

xtrabackup: Stopping log copying thread.

.>> log scanned up to (423916780)

xtrabackup: Transaction log of lsn(423916780) to (423916780) was copied.

[root@data01 mysql]#

备份结束后，能够看到例如以下结果，备份文件夹为null，都压缩到了alldbfullbackup.tar.gz备份压缩包里面。例如以下所看到的：

[root@data01 mysql]# du -sh *

4.0K 20150318

5.1M alldbfullbackup.tar.gz

[root@data01 mysql]#

PS1:能够用gzip边备份边压缩，只是推荐是备份完了之后对整个备份文件夹进行压缩。

6.2 全量恢复

先删除測试表数据：

mysql> select * from t1;

+---+----+

| a | b |

+---+----+

| 5 | aa |

+---+----+

1 row in set (0.03 sec)

mysql> delete from t1;

Query OK, 1 row affected (0.02 sec)

mysql> select * from t1;

Empty set (0.00 sec)

mysql> exit

Bye

进行恢复

xtrabackup --defaults-file=/etc/my.cnf--prepare --target-dir=/data/backups/mysql/20150318

停止msyql数据库

service mysqld5612 stop

复制已经恢复好的文件到mysql数据文件夹并且赋予mysql账号运行权限

cd /data/backups/mysql/20150318

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

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

启动mysql数据库

service mysqld5612 start

恢复完成，check表t1数据，数据恢复回来了：

mysql> use test;

Database changed

mysql> select * from t1;

+---+----+

| a | b |

+---+----+

| 5 | aa |

+---+----+

1 row in set (0.09 sec)

mysql>

PS2： xtrabackup仅仅备份InnoDB数据文件，表结构是不备份的，所以恢复的时候，你必须有相应表结构文件(.frm)。例如以下所看到的。仅仅备份了*.ibd文件：

[root@data01 20150318]# ll

总用量 262168

-rw-r-----. 1 root root 134217728 3月 18 02:31 IBdata1

-rw-r-----. 1 root root 134217728 3月 18 02:31 IBdata2

drwx------. 2 root root 4096 3月 18 02:31 mysql

drwx------. 2 root root 4096 3月 18 02:31 sbtest

drwx------. 2 root root 4096 3月 18 02:31 test

drwx------. 2 root root 4096 3月 18 02:31 user_db

-rw-r-----. 1 root root 93 3月 18 02:31 xtrabackup_checkpoints

-rw-r-----. 1 root root 2560 3月 18 02:31 xtrabackup_logfile

[root@data01 20150318]# cd test/

[root@data01 test]# ll

总用量 288

-rw-r-----. 1 root root 98304 3月 18 02:31 t1.ibd

-rw-r-----. 1 root root 98304 3月 18 02:31 t3.ibd

-rw-r-----. 1 root root 98304 3月 18 02:31 t.ibd

[root@data01 test]#

7 innobackupex全备份

备份步骤例如以下图2.png所看到的：

7.1 全备份

innobackupex --defaults-file=/etc/my.cnf--user=root --password="" --target-dir=/data/backups/mysql/$(date+%Y%m%d)/ --no-timestamp --parallel=2

备份步骤例如以下：

[root@data01 ~]# innobackupex--defaults-file=/etc/my.cnf --user=root --password=""/data/backups/mysql/$(date +%Y%m%d)/ --no-timestamp --parallel=2

This software is published under

the GNU GENERAL PUBLIC LICENSE Version 2,June 1991.

Get the latest version of PerconaXtraBackup, documentation, and help resources:

http://www.percona.com/xb/p

150318 19:32:40 innobackupex: Connecting to MySQL server withDSN'dbi:mysql:;mysql_read_default_file=/etc/my.cnf;mysql_read_default_group=xtrabackup'as 'root' (using password: NO).

150318 19:32:40 innobackupex: Connected to MySQL server

150318 19:32:40 innobackupex: Executing a version checkagainst the server...

150318 19:32:40 innobackupex: Done.

150318 19:32:40 innobackupex: Starting the backup operation

IMPORTANT: Please check that the backup runcompletes successfully.

At the end of a successful backup run innobackupex

prints "completed OK!".

innobackupex: Using server version 5.6.12-log

innobackupex: Created backup directory/data/backups/mysql/20150318

150318 19:32:40 innobackupex: Starting ibbackup with command:xtrabackup --defaults-file="/etc/my.cnf" --defaults-group="mysqld" --backup --suspend-at-end--target-dir=/data/backups/mysql/20150318 --tmpdir=/tmp --extra-lsndir='/tmp'--parallel=2

innobackupex: Waiting for ibbackup(pid=3648) to suspend

innobackupex: Suspend file'/data/backups/mysql/20150318/xtrabackup_suspended_2'

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 (423918562)

xtrabackup: Generating a list oftablespaces

xtrabackup: Starting 2 threads for paralleldata files transfer

[02] Copying ./IBdata1 to/data/backups/mysql/20150318/IBdata1

[01] Copying ./IBdata2 to/data/backups/mysql/20150318/IBdata2

>> log scanned up to (423918562)

[02] ...done

[02] Copying ./mysql/slave_master_info.ibdto /data/backups/mysql/20150318/mysql/slave_master_info.ibd

[02] ...done

[02] Copying./mysql/slave_relay_log_info.ibd to/data/backups/mysql/20150318/mysql/slave_relay_log_info.ibd

[02] ...done

[02] Copying ./mysql/innodb_index_stats.ibdto /data/backups/mysql/20150318/mysql/innodb_index_stats.ibd

[02] ...done

[02] Copying ./mysql/slave_worker_info.ibdto /data/backups/mysql/20150318/mysql/slave_worker_info.ibd

[02] ...done

[02] Copying ./mysql/innodb_table_stats.ibdto /data/backups/mysql/20150318/mysql/innodb_table_stats.ibd

[02] ...done

[02] Copying ./sbtest/sbtest1.ibd to/data/backups/mysql/20150318/sbtest/sbtest1.ibd

[02] ...done

[02] Copying ./sbtest/sbtest5.ibd to/data/backups/mysql/20150318/sbtest/sbtest5.ibd

[02] ...done

[02] Copying ./sbtest/sbtest8.ibd to/data/backups/mysql/20150318/sbtest/sbtest8.ibd

[02] ...done

[02] Copying ./sbtest/sbtest4.ibd to/data/backups/mysql/20150318/sbtest/sbtest4.ibd

[02] ...done

[02] Copying ./sbtest/sbtest2.ibd to/data/backups/mysql/20150318/sbtest/sbtest2.ibd

[02] ...done

[02] Copying ./sbtest/sbtest6.ibd to/data/backups/mysql/20150318/sbtest/sbtest6.ibd

[02] ...done

[02] Copying ./sbtest/sbtest7.ibd to/data/backups/mysql/20150318/sbtest/sbtest7.ibd

[02] ...done

[02] Copying ./sbtest/sbtest3.ibd to/data/backups/mysql/20150318/sbtest/sbtest3.ibd

[02] ...done

[02] Copying ./test/t1.ibd to/data/backups/mysql/20150318/test/t1.ibd

[02] ...done

[02] Copying ./test/t3.ibd to/data/backups/mysql/20150318/test/t3.ibd

[02] ...done

[02] Copying ./test/t.ibd to/data/backups/mysql/20150318/test/t.ibd

[02] ...done

[02] Copying ./user_db/t1.ibd to/data/backups/mysql/20150318/user_db/t1.ibd

[02] ...done

[02] Copying ./user_db/test.ibd to/data/backups/mysql/20150318/user_db/test.ibd

[02] ...done

[02] Copying ./user_db/test2.ibd to/data/backups/mysql/20150318/user_db/test2.ibd

[02] ...done

[01] ...done

[01] Copying ./user_db/t3.ibd to /data/backups/mysql/20150318/user_db/t3.ibd

[02] Copying ./user_db/UC_USER.ibd to/data/backups/mysql/20150318/user_db/UC_USER.ibd

[01] ...done

[01] Copying ./user_db/t.ibd to/data/backups/mysql/20150318/user_db/t.ibd

>> log scanned up to (423918562)

[01] ...done

[02] ...done

>> log scanned up to (423918562)

xtrabackup: Creating suspend file'/data/backups/mysql/20150318/xtrabackup_suspended_2' with pid '3648'

150318 19:32:45 innobackupex: Continuing after ibbackup hassuspended

150318 19:32:45 innobackupex: Executing FLUSH TABLES WITHREAD LOCK...

150318 19:32:45 innobackupex: All tables locked and flushedto disk

150318 19:32:45 innobackupex: Starting to backup non-InnoDBtables and files

innobackupex: in subdirectories of '/home/data/mysql/data/'

innobackupex: Backing up files'/home/data/mysql/data//performance_schema/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}'(53 files)

>> log scanned up to (423918562)

innobackupex: Backing up files'/home/data/mysql/data//mysql/*.{frm,isl,MYD,MYI,MAD,MAI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}'(74 files)

>> log scanned up to (423918562)

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest3.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest4.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest6.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest8.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest1.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/db.opt'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest2.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest7.frm'

innobackupex: Backing up file'/home/data/mysql/data//sbtest/sbtest5.frm'

innobackupex: Backing up file'/home/data/mysql/data//test/t3.frm'

innobackupex: Backing up file'/home/data/mysql/data//test/t1.frm'

innobackupex: Backing up file'/home/data/mysql/data//user_db/UC_USER.frm'

>> log scanned up to (423918562)

innobackupex: Backing up file'/home/data/mysql/data//user_db/t.frm'

innobackupex: Backing up file'/home/data/mysql/data//user_db/t3.frm'

innobackupex: Backing up file'/home/data/mysql/data//user_db/test.frm'

innobackupex: Backing up file'/home/data/mysql/data//user_db/db.opt'

innobackupex: Backing up file'/home/data/mysql/data//user_db/test2.frm'

innobackupex: Backing up file'/home/data/mysql/data//user_db/t1.frm'

150318 19:32:48 innobackupex: Finished backing up non-InnoDBtables and files

150318 19:32:48 innobackupex: Executing FLUSHNO_WRITE_TO_BINLOG ENGINE LOGS...

150318 19:32:48 innobackupex: Waiting for log copying tofinish

xtrabackup: The latest check point (forincremental): '423918562'

xtrabackup: Stopping log copying thread.

.>> log scanned up to (423918562)

xtrabackup: Creating suspend file'/data/backups/mysql/20150318/xtrabackup_log_copied' with pid '3648'

xtrabackup: Transaction log of lsn(423918562) to (423918562) was copied.

150318 19:32:49 innobackupex: All tables unlocked

innobackupex: Backup created in directory'/data/backups/mysql/20150318'

innobackupex: MySQL binlog position:filename 'mysql-bin.000064', position 120

150318 19:32:49 innobackupex: Connection to database serverclosed

150318 19:32:49 innobackupex: completed OK!

[root@data01 ~]#

7.2 恢复

删除数据：

mysql> use test;

Database changed

mysql> select * from t1;

+---+----+

| a | b |

+---+----+

| 5 | aa |

+---+----+

1 row in set (0.09 sec)

mysql> delete from t1;

Query OK, 1 row affected (0.06 sec)

mysql> select * from t1;

Empty set (0.00 sec)

mysql> drop table t1;

Query OK, 0 rows affected (0.08 sec)

mysql>

进行恢复：

innobackupex --defaults-file=/etc/my.cnf --use-memory=4G--apply-log /data/backups/mysql/$(date +%Y%m%d)/

恢复过程记录例如以下：

[root@data01 ~]# innobackupex--defaults-file=/etc/my.cnf --apply-log /data/backups/mysql/$(date +%Y%m%d)/

This software is published under

the GNU GENERAL PUBLIC LICENSE Version 2,June 1991.

Get the latest version of PerconaXtraBackup, documentation, and help resources:

http://www.percona.com/xb/p

150318 20:09:35 innobackupex: Starting the apply-logoperation

IMPORTANT: Please check that the apply-logrun completes successfully.

At the end of a successful apply-log run innobackupex

prints "completed OK!".

150318 20:09:35 innobackupex: Starting ibbackup with command:xtrabackup --defaults-file="/data/backups/mysql/20150318/backup-my.cnf" --defaults-group="mysqld" --prepare--target-dir=/data/backups/mysql/20150318

xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )

xtrabackup: cd to/data/backups/mysql/20150318

xtrabackup: This target seems to be notprepared yet.

xtrabackup: xtrabackup_logfile detected:size=2654208, start_lsn=(423918562)

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 = 1

xtrabackup: innodb_log_file_size = 2654208

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 = 1

xtrabackup: innodb_log_file_size = 2654208

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 423918522and 423918522 in ibdata files do not match the log sequence number 423918562 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

InnoDB: 128 rollback segment(s) are active.

InnoDB: Waiting for purge to start

InnoDB: 5.6.22 started; log sequence number423918562

[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: FTS optimize thread exiting.

InnoDB: Starting shutdown...

InnoDB: Shutdown completed; log sequencenumber 423919216

150318 20:09:41 innobackupex: Restarting xtrabackup withcommand: xtrabackup --defaults-file="/data/backups/mysql/20150318/backup-my.cnf" --defaults-group="mysqld" --prepare--target-dir=/data/backups/mysql/20150318

for creating ib_logfile*

xtrabackup version 2.2.9 based on MySQLserver 5.6.22 Linux (x86_64) (revision id: )

xtrabackup: cd to/data/backups/mysql/20150318

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=423919216

InnoDB: Highest supported file format isBarracuda.

InnoDB: 128 rollback segment(s) are active.

InnoDB: Waiting for purge to start

InnoDB: 5.6.22 started; log sequence number423919628

[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: FTS optimize thread exiting.

InnoDB: Starting shutdown...

InnoDB: Shutdown completed; log sequencenumber 423920158

150318 20:09:46 innobackupex: completed OK!

[root@data01 ~]#

修复：RESTORETHE BACKUP

停止mysql服务

[root@data01 ~]# service mysqld5612 stop

Shutting down MySQL.. SUCCESS!

[root@data01 ~]#

然后修复—copy-back：

[root@data01 ~]# innobackupex--defaults-file=/etc/my.cnf --copy-back /data/backups/mysql/$(date +%Y%m%d)/

This software is published under

the GNU GENERAL PUBLIC LICENSE Version 2,June 1991.

Get the latest version of PerconaXtraBackup, documentation, and help resources:

http://www.percona.com/xb/p

150318 20:18:38 innobackupex: Starting the copy-backoperation

IMPORTANT: Please check that the copy-backrun completes successfully.

At the end of a successful copy-back run innobackupex

prints "completed OK!".

innobackupex: Starting to copy files in'/data/backups/mysql/20150318'

innobackupex: back to original datadirectory '/home/data/mysql/data'

innobackupex: Copying'/data/backups/mysql/20150318/xtrabackup_binlog_pos_innodb' to'/home/data/mysql/data/xtrabackup_binlog_pos_innodb'

innobackupex: Copying'/data/backups/mysql/20150318/xtrabackup_info' to'/home/data/mysql/data/xtrabackup_info'

innobackupex: Creating directory'/home/data/mysql/data/performance_schema'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_history.frm' to'/home/data/mysql/data/performance_schema/events_waits_history.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_summary_global_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_waits_summary_global_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/threads.frm' to'/home/data/mysql/data/performance_schema/threads.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_history_long.frm'to '/home/data/mysql/data/performance_schema/events_stages_history_long.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/file_summary_by_instance.frm'to '/home/data/mysql/data/performance_schema/file_summary_by_instance.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_summary_by_user_by_event_name.frm'to '/home/data/mysql/data/performance_schema/events_waits_summary_by_user_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_summary_by_account_by_event_name.frm'to '/home/data/mysql/data/performance_schema/events_statements_summary_by_account_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_summary_by_user_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_statements_summary_by_user_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_current.frm' to'/home/data/mysql/data/performance_schema/events_waits_current.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/table_lock_waits_summary_by_table.frm'to'/home/data/mysql/data/performance_schema/table_lock_waits_summary_by_table.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/socket_instances.frm' to'/home/data/mysql/data/performance_schema/socket_instances.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/setup_actors.frm' to'/home/data/mysql/data/performance_schema/setup_actors.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/table_io_waits_summary_by_table.frm'to'/home/data/mysql/data/performance_schema/table_io_waits_summary_by_table.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_summary_by_account_by_event_name.frm'to '/home/data/mysql/data/performance_schema/events_stages_summary_by_account_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/cond_instances.frm' to'/home/data/mysql/data/performance_schema/cond_instances.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/users.frm' to'/home/data/mysql/data/performance_schema/users.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/db.opt' to'/home/data/mysql/data/performance_schema/db.opt'

innobackupex: Copying '/data/backups/mysql/20150318/performance_schema/events_waits_summary_by_instance.frm'to'/home/data/mysql/data/performance_schema/events_waits_summary_by_instance.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_summary_by_thread_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_stages_summary_by_thread_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_current.frm'to '/home/data/mysql/data/performance_schema/events_statements_current.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/objects_summary_global_by_type.frm'to'/home/data/mysql/data/performance_schema/objects_summary_global_by_type.frm'

innobackupex: Copying '/data/backups/mysql/20150318/performance_schema/events_waits_summary_by_thread_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_waits_summary_by_thread_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_summary_by_host_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_waits_summary_by_host_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/socket_summary_by_event_name.frm'to '/home/data/mysql/data/performance_schema/socket_summary_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_history.frm' to'/home/data/mysql/data/performance_schema/events_stages_history.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_history.frm'to '/home/data/mysql/data/performance_schema/events_statements_history.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_summary_by_thread_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_statements_summary_by_thread_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_summary_global_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_stages_summary_global_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/setup_timers.frm' to'/home/data/mysql/data/performance_schema/setup_timers.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/hosts.frm' to'/home/data/mysql/data/performance_schema/hosts.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_summary_by_host_by_event_name.frm'to '/home/data/mysql/data/performance_schema/events_stages_summary_by_host_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/host_cache.frm' to'/home/data/mysql/data/performance_schema/host_cache.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/setup_objects.frm' to'/home/data/mysql/data/performance_schema/setup_objects.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/setup_consumers.frm' to'/home/data/mysql/data/performance_schema/setup_consumers.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/session_account_connect_attrs.frm'to '/home/data/mysql/data/performance_schema/session_account_connect_attrs.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_summary_by_host_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_statements_summary_by_host_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/socket_summary_by_instance.frm'to '/home/data/mysql/data/performance_schema/socket_summary_by_instance.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_summary_global_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_statements_summary_global_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_summary_by_user_by_event_name.frm'to '/home/data/mysql/data/performance_schema/events_stages_summary_by_user_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/mutex_instances.frm' to'/home/data/mysql/data/performance_schema/mutex_instances.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/setup_instruments.frm' to'/home/data/mysql/data/performance_schema/setup_instruments.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_summary_by_digest.frm'to '/home/data/mysql/data/performance_schema/events_statements_summary_by_digest.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/rwlock_instances.frm' to'/home/data/mysql/data/performance_schema/rwlock_instances.frm'

innobackupex: Copying '/data/backups/mysql/20150318/performance_schema/file_summary_by_event_name.frm'to '/home/data/mysql/data/performance_schema/file_summary_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_summary_by_account_by_event_name.frm'to'/home/data/mysql/data/performance_schema/events_waits_summary_by_account_by_event_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_stages_current.frm' to'/home/data/mysql/data/performance_schema/events_stages_current.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/session_connect_attrs.frm' to'/home/data/mysql/data/performance_schema/session_connect_attrs.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/performance_timers.frm' to'/home/data/mysql/data/performance_schema/performance_timers.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_waits_history_long.frm'to '/home/data/mysql/data/performance_schema/events_waits_history_long.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/file_instances.frm' to'/home/data/mysql/data/performance_schema/file_instances.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/events_statements_history_long.frm'to'/home/data/mysql/data/performance_schema/events_statements_history_long.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/table_io_waits_summary_by_index_usage.frm'to '/home/data/mysql/data/performance_schema/table_io_waits_summary_by_index_usage.frm'

innobackupex: Copying'/data/backups/mysql/20150318/performance_schema/accounts.frm' to'/home/data/mysql/data/performance_schema/accounts.frm'

innobackupex: Creating directory'/home/data/mysql/data/mysql'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/event.MYI' to'/home/data/mysql/data/mysql/event.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/columns_priv.frm' to'/home/data/mysql/data/mysql/columns_priv.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/db.MYD' to'/home/data/mysql/data/mysql/db.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slave_master_info.ibd' to'/home/data/mysql/data/mysql/slave_master_info.ibd'

innobackupex: Copying '/data/backups/mysql/20150318/mysql/user.MYI'to '/home/data/mysql/data/mysql/user.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_transition_type.frm' to'/home/data/mysql/data/mysql/time_zone_transition_type.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/procs_priv.frm' to'/home/data/mysql/data/mysql/procs_priv.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_topic.MYI' to'/home/data/mysql/data/mysql/help_topic.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_name.MYI' to'/home/data/mysql/data/mysql/time_zone_name.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slave_relay_log_info.ibd' to'/home/data/mysql/data/mysql/slave_relay_log_info.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/innodb_index_stats.ibd' to'/home/data/mysql/data/mysql/innodb_index_stats.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/columns_priv.MYI' to'/home/data/mysql/data/mysql/columns_priv.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slow_log.CSV' to'/home/data/mysql/data/mysql/slow_log.CSV'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/func.MYI' to'/home/data/mysql/data/mysql/func.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/db.frm' to'/home/data/mysql/data/mysql/db.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/servers.MYD' to'/home/data/mysql/data/mysql/servers.MYD'

innobackupex: Copying '/data/backups/mysql/20150318/mysql/time_zone.MYI'to '/home/data/mysql/data/mysql/time_zone.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/proc.MYI' to'/home/data/mysql/data/mysql/proc.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/tables_priv.MYI' to'/home/data/mysql/data/mysql/tables_priv.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slave_worker_info.frm' to'/home/data/mysql/data/mysql/slave_worker_info.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone.MYD' to'/home/data/mysql/data/mysql/time_zone.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/ndb_binlog_index.frm' to'/home/data/mysql/data/mysql/ndb_binlog_index.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slow_log.CSM' to'/home/data/mysql/data/mysql/slow_log.CSM'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/ndb_binlog_index.MYD' to'/home/data/mysql/data/mysql/ndb_binlog_index.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/tables_priv.frm' to'/home/data/mysql/data/mysql/tables_priv.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/event.frm' to'/home/data/mysql/data/mysql/event.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/func.MYD' to '/home/data/mysql/data/mysql/func.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_keyword.MYD' to'/home/data/mysql/data/mysql/help_keyword.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/procs_priv.MYI' to'/home/data/mysql/data/mysql/procs_priv.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slave_relay_log_info.frm' to'/home/data/mysql/data/mysql/slave_relay_log_info.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_leap_second.MYI' to '/home/data/mysql/data/mysql/time_zone_leap_second.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_transition.MYI' to'/home/data/mysql/data/mysql/time_zone_transition.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/func.frm' to'/home/data/mysql/data/mysql/func.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_keyword.frm' to'/home/data/mysql/data/mysql/help_keyword.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/procs_priv.MYD' to '/home/data/mysql/data/mysql/procs_priv.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_topic.MYD' to'/home/data/mysql/data/mysql/help_topic.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/plugin.MYI' to'/home/data/mysql/data/mysql/plugin.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/innodb_index_stats.frm' to'/home/data/mysql/data/mysql/innodb_index_stats.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_category.frm' to'/home/data/mysql/data/mysql/help_category.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_transition_type.MYD' to'/home/data/mysql/data/mysql/time_zone_transition_type.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/user.frm' to'/home/data/mysql/data/mysql/user.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/general_log.frm' to'/home/data/mysql/data/mysql/general_log.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_category.MYD' to'/home/data/mysql/data/mysql/help_category.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_relation.frm' to'/home/data/mysql/data/mysql/help_relation.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/proxies_priv.MYI' to'/home/data/mysql/data/mysql/proxies_priv.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/tables_priv.MYD' to'/home/data/mysql/data/mysql/tables_priv.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_transition_type.MYI' to'/home/data/mysql/data/mysql/time_zone_transition_type.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_transition.MYD' to'/home/data/mysql/data/mysql/time_zone_transition.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/general_log.CSM' to'/home/data/mysql/data/mysql/general_log.CSM'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/proxies_priv.MYD' to'/home/data/mysql/data/mysql/proxies_priv.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/ndb_binlog_index.MYI' to'/home/data/mysql/data/mysql/ndb_binlog_index.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slave_master_info.frm' to '/home/data/mysql/data/mysql/slave_master_info.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_relation.MYI' to'/home/data/mysql/data/mysql/help_relation.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/db.MYI' to '/home/data/mysql/data/mysql/db.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_leap_second.MYD' to'/home/data/mysql/data/mysql/time_zone_leap_second.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_leap_second.frm' to '/home/data/mysql/data/mysql/time_zone_leap_second.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_name.MYD' to'/home/data/mysql/data/mysql/time_zone_name.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/proc.frm' to '/home/data/mysql/data/mysql/proc.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_relation.MYD' to'/home/data/mysql/data/mysql/help_relation.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/proxies_priv.frm' to '/home/data/mysql/data/mysql/proxies_priv.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/servers.MYI' to'/home/data/mysql/data/mysql/servers.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_keyword.MYI' to'/home/data/mysql/data/mysql/help_keyword.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/servers.frm' to'/home/data/mysql/data/mysql/servers.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_transition.frm' to'/home/data/mysql/data/mysql/time_zone_transition.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_category.MYI' to'/home/data/mysql/data/mysql/help_category.MYI'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone.frm' to'/home/data/mysql/data/mysql/time_zone.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slave_worker_info.ibd' to'/home/data/mysql/data/mysql/slave_worker_info.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/innodb_table_stats.frm' to'/home/data/mysql/data/mysql/innodb_table_stats.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/slow_log.frm' to'/home/data/mysql/data/mysql/slow_log.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/user.MYD' to'/home/data/mysql/data/mysql/user.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/time_zone_name.frm' to'/home/data/mysql/data/mysql/time_zone_name.frm'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/plugin.MYD' to'/home/data/mysql/data/mysql/plugin.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/innodb_table_stats.ibd' to'/home/data/mysql/data/mysql/innodb_table_stats.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/columns_priv.MYD' to'/home/data/mysql/data/mysql/columns_priv.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/plugin.frm' to'/home/data/mysql/data/mysql/plugin.frm'

innobackupex: Copying '/data/backups/mysql/20150318/mysql/general_log.CSV'to '/home/data/mysql/data/mysql/general_log.CSV'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/event.MYD' to'/home/data/mysql/data/mysql/event.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/proc.MYD' to'/home/data/mysql/data/mysql/proc.MYD'

innobackupex: Copying'/data/backups/mysql/20150318/mysql/help_topic.frm' to'/home/data/mysql/data/mysql/help_topic.frm'

innobackupex: Creating directory'/home/data/mysql/data/sbtest'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest3.frm' to'/home/data/mysql/data/sbtest/sbtest3.frm'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest4.frm' to'/home/data/mysql/data/sbtest/sbtest4.frm'

innobackupex: Copying '/data/backups/mysql/20150318/sbtest/sbtest6.frm'to '/home/data/mysql/data/sbtest/sbtest6.frm'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest1.ibd' to'/home/data/mysql/data/sbtest/sbtest1.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest8.frm' to'/home/data/mysql/data/sbtest/sbtest8.frm'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest1.frm' to'/home/data/mysql/data/sbtest/sbtest1.frm'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest5.ibd' to '/home/data/mysql/data/sbtest/sbtest5.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/db.opt' to'/home/data/mysql/data/sbtest/db.opt'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest8.ibd' to'/home/data/mysql/data/sbtest/sbtest8.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest4.ibd' to'/home/data/mysql/data/sbtest/sbtest4.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest2.frm' to'/home/data/mysql/data/sbtest/sbtest2.frm'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest2.ibd' to'/home/data/mysql/data/sbtest/sbtest2.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest6.ibd' to'/home/data/mysql/data/sbtest/sbtest6.ibd'

innobackupex: Copying '/data/backups/mysql/20150318/sbtest/sbtest7.ibd'to '/home/data/mysql/data/sbtest/sbtest7.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest7.frm' to'/home/data/mysql/data/sbtest/sbtest7.frm'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest3.ibd' to'/home/data/mysql/data/sbtest/sbtest3.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/sbtest/sbtest5.frm' to'/home/data/mysql/data/sbtest/sbtest5.frm'

innobackupex: Creating directory'/home/data/mysql/data/test'

innobackupex: Copying'/data/backups/mysql/20150318/test/t1.ibd' to'/home/data/mysql/data/test/t1.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/test/t3.frm' to'/home/data/mysql/data/test/t3.frm'

innobackupex: Copying'/data/backups/mysql/20150318/test/t3.ibd' to'/home/data/mysql/data/test/t3.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/test/t.ibd' to '/home/data/mysql/data/test/t.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/test/t1.frm' to'/home/data/mysql/data/test/t1.frm'

innobackupex: Creating directory'/home/data/mysql/data/user_db'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/UC_USER.frm' to'/home/data/mysql/data/user_db/UC_USER.frm'

innobackupex: Copying '/data/backups/mysql/20150318/user_db/t.frm'to '/home/data/mysql/data/user_db/t.frm'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/t1.ibd' to'/home/data/mysql/data/user_db/t1.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/t3.frm' to'/home/data/mysql/data/user_db/t3.frm'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/test.frm' to'/home/data/mysql/data/user_db/test.frm'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/db.opt' to '/home/data/mysql/data/user_db/db.opt'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/test.ibd' to'/home/data/mysql/data/user_db/test.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/test2.ibd' to'/home/data/mysql/data/user_db/test2.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/t3.ibd' to'/home/data/mysql/data/user_db/t3.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/UC_USER.ibd' to'/home/data/mysql/data/user_db/UC_USER.ibd'

innobackupex: Copying '/data/backups/mysql/20150318/user_db/test2.frm'to '/home/data/mysql/data/user_db/test2.frm'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/t.ibd' to'/home/data/mysql/data/user_db/t.ibd'

innobackupex: Copying'/data/backups/mysql/20150318/user_db/t1.frm' to'/home/data/mysql/data/user_db/t1.frm'

innobackupex: Starting to copy InnoDBsystem tablespace

innobackupex: in'/data/backups/mysql/20150318'

innobackupex: back to original InnoDB datadirectory '/home/data/mysql/data'

innobackupex: Copying '/data/backups/mysql/20150318/IBdata1'to '/home/data/mysql/data/IBdata1'

innobackupex: Copying'/data/backups/mysql/20150318/IBdata2' to '/home/data/mysql/data/IBdata2'

innobackupex: Starting to copy InnoDB undotablespaces

innobackupex: in'/data/backups/mysql/20150318'

innobackupex: back to'/home/data/mysql/data'

innobackupex: Starting to copy InnoDB logfiles

innobackupex: in'/data/backups/mysql/20150318'

innobackupex: back to original InnoDB logdirectory '/home/data/mysql/data'

innobackupex: Copying'/data/backups/mysql/20150318/ib_logfile1' to'/home/data/mysql/data/ib_logfile1'

innobackupex: Copying'/data/backups/mysql/20150318/ib_logfile2' to'/home/data/mysql/data/ib_logfile2'

innobackupex: Copying '/data/backups/mysql/20150318/ib_logfile0'to '/home/data/mysql/data/ib_logfile0'

innobackupex: Finished copying back files.

150318 20:18:50 innobackupex: completed OK!

[root@data01 ~]#

赋予mysql用户訪问权限，然后重新启动mysql数据服务，查看表t1是否已经恢复了，例如以下所看到的：

[root@data01 ~]# chown -R mysql.mysql/home/data/mysql/data/

[root@data01 ~]#

[root@data01 ~]# service mysqld5612 start

Starting MySQL..... SUCCESS!

[root@data01 ~]# mysql

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 2

Server version: 5.6.12-log Sourcedistribution

Oracle is a registered trademark of OracleCorporation and/or its

affiliates. Other names may be trademarksof their respective

owners.

Type 'help;' or '\h' for help. Type '\c' toclear the current input statement.

mysql> use test;

Database changed

mysql> select * from t1;

+---+----+

| a | b |

+---+----+

| 5 | aa |

+---+----+

1 row in set (0.08 sec)

PS：这里是比較简单的測试，很多其它的功能以及參数。大家能够去使用innobackupex --help|more 查看须要自己要的參数。然后自己去尝试。也能够參考官网的样例：http://www.percona.com/doc/percona-xtrabackup/2.2/how-tos.html。

8应用场景总结

xtrabackup备份恢复工具比較适合数据增长型数据库。对于数据增长型的库，因为数据的增长导致数据备份和恢复的空间和时间上的压力较大。

而xtrabackup也有增量备份的功能，在短时间内能够通过进行增量备份来保证数据的安全性。而长期来看，仍然须要间断性的进行全库备份。此外。因为xtrabackup对innodb的数据库不进行锁定，因此对要求不影响线上服务的数据备份和恢复较适合。

而对于数据量无明显增长，且更新为主的数据更新型数据库，xtrabackup显得过于复杂。

xtrabackup操作反而不如mysqldump的性能高。

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<版权全部。文章同意转载，但必须以链接方式注明源地址，否则追究法律责任!>
原博客地址： http://blog.itpub.net/26230597/viewspace-1465772/
原作者：黄杉(mchdba)
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