利用XtraBackup给MYSQL热备(基于数据文件)

利用XtraBackup给MYSQL热备(基于数据文件)

By JRoBot on 2013 年 11 月 26 日 | Leave a response

利用XtraBackup给MYSQL热备(基于数据文件)
利用 XtraBackup 快速配置主从服务器
这XtraBackup 个主要包含2个命令 xtrabackup 和 innobackupex 第一个是他的主程序 另外个他自己封装的脚本一般用脚本来完成备份
这是工作笔记 比较凌乱 凑合着看吧

获取XtraBackup

获取XtraBackup(其中1.6里面有个WIN版本的 测试后很头疼各种BUG未解决 WIN下的MYSQL还是使用远程备份吧)

http://www.percona.com/downloads/XtraBackup/

1	# 例如我的环境是CENTOS 6X 64BIT的

2	mkdir -p $HOME/downloads;cd $HOME/downloads

1

# 多线程下载

2	lftp -c "pget -n 30 http://www.percona.com/downloads/XtraBackup/LATEST/RPM/rhel6/x86_64/percona-xtrabackup-2.1.5-680.rhel6.x86_64.rpm"

安装

1

# 然后安装

2	# 安装前可能需要 yum -y install libaio perl-Time-HiRes

3

# 然后再。。。

4

# 查看安装包信息

5	rpm -qip percona-xtrabackup-2.1.5-680.rhel6.x86_64.rpm

6

# 安装

7	rpm -ivh percona-xtrabackup-2.1.5-680.rhel6.x86_64.rpm

8

# 拆卸

9	rpm -e percona-xtrabackup

1	# 否则可能出现以下提示

2	error: Failed dependencies:

3	libaio.so.1()(64bit) is needed by percona-xtrabackup-2.1.5-680.rhel6.x86_64

4	libaio.so.1(LIBAIO_0.1)(64bit) is needed by percona-xtrabackup-2.1.5-680.rhel6.x86_64

5	libaio.so.1(LIBAIO_0.4)(64bit) is needed by percona-xtrabackup-2.1.5-680.rhel6.x86_64

6	perl(Time::HiRes) is needed by percona-xtrabackup-2.1.5-680.rhel6.x86_64

1	# 好 这次安装顺利过去了

2	xtrabackup --version

3	xtrabackup version 2.1.5 for Percona Server 5.1.70 unknown-linux-gnu (x86_64) (revision id: 680)

1

#

2	开始备份(如果在MY.CNF里面配置了[XtraBackup]节的用户和密码就可以使用不带密码的方式备份)

3	BACKUP_DIR="/home/ftp/b/backup_data/wwwroot/2013/11/23/2"

4	mkdir -p $BACKUP_DIR

5	# xtrabackup --backup --datadir=Mysql源数据目录 --target-dir=Mysql备份数据存放目录

6	xtrabackup --backup --datadir=/var/lib/mysql/ --target-dir=$BACKUP_DIR

7	xtrabackup --backup --user=root --password=密码 --datadir=/var/lib/mysql/ --target-dir=/home/ftp/b/backup_data/wwwroot/2013/11/23/-4

1	innobackupex --user=root --password=密码 --defaults-file=/etc/my.cnf /home/ftp/b/backup_data/wwwroot/2013/11/23/2.1

2	# 我晕 真是折腾啊

3	innobackupex: Connected to MySQL server

4	innobackupex: Error: Support for MySQL 5.1 with builtin InnoDB (not the plugin) was removed in Percona XtraBackup 2.1. The last version to support MySQL 5.1 with builtin InnoDB was Percona XtraBackup 2.0.

1

# 拆卸

2	rpm -e percona-xtrabackup

1

# 重新下载

2	mkdir -p $HOME/downloads;cd $HOME/downloads

3	lftp -c pget -n 30 http://www.percona.com/redir/downloads/XtraBackup/XtraBackup-2.0.0/RPM/rhel6/x86_64/percona-xtrabackup-2.0.0-417.rhel6.x86_64.rpm

1

# 查看安装包信息

2	rpm -qip percona-xtrabackup-2.0.0-417.rhel6.x86_64.rpm

1

# 安装

2	rpm -ivh percona-xtrabackup-2.0.0-417.rhel6.x86_64.rpm

3	warning: percona-xtrabackup-2.0.0-417.rhel6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY

4	Preparing...                ########################################### [100%]

5	1:percona-xtrabackup     ########################################### [100%]

6	xtrabackup --version

7	xtrabackup version 2.0.0 for Percona Server 5.1.59 unknown-linux-gnu (x86_64) (revision id: 417)

测试备份

1	innobackupex --user=root --password=密码 --defaults-file=/etc/my.cnf /home/ftp/b/backup_data/wwwroot/

好 这下对鸟。。。

01	InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy

02	and Percona Inc 2009-2012.  All Rights Reserved.

03

04	This software is published under

05	the GNU GENERAL PUBLIC LICENSE Version 2, June 1991.

06

07	131123 09:22:25  innobackupex: Starting mysql with options:  --defaults-file='/etc/my.cnf' --password=xxxxxxxx --user='root' --unbuffered --

08	131123 09:22:25  innobackupex: Connected to database with mysql child process (pid=30774)

09	131123 09:22:31  innobackupex: Connection to database server closed

10	IMPORTANT: Please check that the backup run completes successfully.

11	At the end of a successful backup run innobackupex

12	prints "completed OK!".

13

14	innobackupex: Using mysql  Ver 14.14 Distrib 5.1.69, for redhat-linux-gnu (x86_64) using readline 5.1

15	innobackupex: Using mysql server version Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

16

17	innobackupex: Created backup directory /home/ftp/b/backup_data/wwwroot/2013-11-23_09-22-31

18	131123 09:22:31  innobackupex: Starting mysql with options:  --defaults-file='/etc/my.cnf' --password=xxxxxxxx --user='root' --unbuffered --

19	131123 09:22:31  innobackupex: Connected to database with mysql child process (pid=30841)

20	131123 09:22:33  innobackupex: Connection to database server closed

21

22	131123 09:22:33  innobackupex: Starting ibbackup with command: xtrabackup_51  --defaults-file="/etc/my.cnf" --backup --suspend-at-end --target-dir=/home/ftp/b/backup_data/wwwroot/2013-11-23_09-22-31

23	innobackupex: Waiting for ibbackup (pid=30861) to suspend

24	innobackupex: Suspend file '/home/ftp/b/backup_data/wwwroot/2013-11-23_09-22-31/xtrabackup_suspended'

25

26	xtrabackup_51 version 2.0.0 for MySQL server 5.1.59 unknown-linux-gnu (x86_64) (revision id: 417)

27	xtrabackup: uses posix_fadvise().

28	xtrabackup: cd to /var/lib/mysql

29	xtrabackup: Target instance is assumed as followings.

30	xtrabackup:   innodb_data_home_dir = ./

31	xtrabackup:   innodb_data_file_path = ibdata1:10M:autoextend

32	xtrabackup:   innodb_log_group_home_dir = ./

33	xtrabackup:   innodb_log_files_in_group = 2

34	xtrabackup:   innodb_log_file_size = 5242880

35	>> log scanned up to (0 44243)

36	[01] Copying ./ibdata1 to /home/ftp/b/backup_data/wwwroot/2013-11-23_09-22-31/ibdata1

37	[01]        ...done

38

39	131123 09:22:35  innobackupex: Continuing after ibbackup has suspended

40	131123 09:22:35  innobackupex: Starting mysql with options:  --defaults-file='/etc/my.cnf' --password=xxxxxxxx --user='root' --unbuffered --

41	131123 09:22:35  innobackupex: Connected to database with mysql child process (pid=30874)

42	131123 09:22:37  innobackupex: Starting to lock all tables...

43	>> log scanned up to (0 44243)

44	>> log scanned up to (0 44243)

45	131123 09:22:47  innobackupex: All tables locked and flushed to disk

46

47	131123 09:22:47  innobackupex: Starting to backup .frm, .MRG, .MYD, .MYI,

48	innobackupex: .TRG, .TRN, .ARM, .ARZ, .CSM, .CSV and .opt files in

49	innobackupex: subdirectories of '/var/lib/mysql'

50	innobackupex: Backing up files '/var/lib/mysql/blog/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (49 files)

51	innobackupex: Backing up file '/var/lib/mysql/info/db.opt'

52	innobackupex: Backing up files '/var/lib/mysql/bd_2kdp_com/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (49 files)

53	>> log scanned up to (0 44243)

54	innobackupex: Backing up file '/var/lib/mysql/www_2kdp_com/db.opt'

55	innobackupex: Backing up files '/var/lib/mysql/mysql/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (69 files)

56	innobackupex: Backing up file '/var/lib/mysql/clean_cache/db.opt'

57	innobackupex: Backing up file '/var/lib/mysql/union/db.opt'

58	innobackupex: Backing up files '/var/lib/mysql/movie/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (49 files)

59	innobackupex: Backing up file '/var/lib/mysql/link_2kdp/db.opt'

60	innobackupex: Backing up files '/var/lib/mysql/silkime_com/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (295 files)

61	>> log scanned up to (0 44243)

62	innobackupex: Backing up file '/var/lib/mysql/copy_site/db.opt'

63	innobackupex: Backing up files '/var/lib/mysql/sell_bdl/*.{frm,MYD,MYI,MRG,TRG,TRN,ARM,ARZ,CSM,CSV,opt,par}' (133 files)

64	131123 09:22:59  innobackupex: Finished backing up .frm, .MRG, .MYD, .MYI, .TRG, .TRN, .ARM, .ARZ, .CSV, .CSM and .opt files

65

66	innobackupex: Resuming ibbackup

67

68	xtrabackup: The latest check point (for incremental): '0:44243'

69	xtrabackup: Stopping log copying thread.

70	.>> log scanned up to (0 44243)

71	>> log scanned up to (0 44243)

72

73	xtrabackup: Transaction log of lsn (0 44243) to (0 44243) was copied.

74	131123 09:23:01  innobackupex: All tables unlocked

75	131123 09:23:01  innobackupex: Connection to database server closed

76

77	innobackupex: Backup created in directory '/home/ftp/b/backup_data/wwwroot/2013-11-23_09-22-31'

78	# 这一句我特别喜欢 真的。。。折腾那么久 就为了这个。。。。。

79	innobackupex: MySQL binlog position: filename 'mysql-bin.000001', position 25959

80	131123 09:23:01  innobackupex: completed OK!

01	# 现在我们cd到备份目录 看看搞了些什么.

02	# 除了数据库本身的文件外 发现还有 另外5个文件 有用的写下备注

03	backup-my.cnf # 这个是用作数据库数据文件指向到这个备份目录的时候用的 直接把里面的内容复制到系统的my.cnf

04	xtrabackup_binlog_info # 记录了备份完成时候的 二进制日志和 Position指针位置

05	xtrabackup_logfile

06	xtrabackup_binary

07	xtrabackup_checkpoints # 这个里面指明了备份类型backup_type 如 full-backuped 增量...

08	# 这个东西可以写个脚本来读取 从服务器那边那个做成自动配置

09	cat xtrabackup_binlog_info

10	mysql-bin.000001        25959

1	# 现在再来测试下压缩备份

2	# 一些比较有用的选项

3	# --slave-info(slave-info可以记录备份恢 复后，作为slave需要的一些信息，根据这些信息，可以很方便的利用备份来重做slave。)

4	# --no-lock(备份过程不锁定表)

5	# 2>$BACKUP_DIR/`date +%Y-%m-%d_%H-%M-%S`/mysqlbackup.log(备份过程中的输出信息保存,适合封装到自己的脚本里面去什么的)

6

7	#TIME1=`date +%Y%m%d%H%M%S`;echo 勤劳的Jrobot:我在`date +%Y/%m/%d_%H:%M:%S`开始备份!

8	#echo "勤劳的Jrobot:我在`date +%Y/%m/%d_%H:%M:%S`开始备份!" >> /home/ftp/b/backup_data/`date +%Y-%m-%d_%H-%M-%S`/backup.log

1	BACKUP_DIR="/home/ftp/b/backup_data/wwwroot"

2

USER="用户"

3

PSWD="密码"

4	MY="/etc/my.cnf"

5	LOG="MySQL_Last_Backup.LOG"

6	LAST_GZIP_BACKUP="LASTBACKUP.TAR.GZ"

7	#mkdir -p $BACKUP_DIR/`date +%Y-%m-%d_%H-%M-%S`/

记录备份日志

1	innobackupex --user=$USER --password=$PSWD --slave-info --defaults-file=$MY $BACKUP_DIR/ 2>$BACKUP_DIR/$LOG

gzip压缩备份

1	innobackupex --user=$USER --password=$PSWD --slave-info --defaults-file=$MY $BACKUP_DIR/ --stream=tar | gzip>$BACKUP_DIR/$LAST_GZIP_BACKUP

解压这个包看看或者直接SCP到从机

1	tar xvzfi LASTBACKUP.TAR.GZ

2	cat xtrabackup_binlog_info # 哈哈开心了吧

在从服务器上解压这个后 开始配置同步

1	#slave stop;

2	#CHANGE MASTER TO MASTER_HOST='主机地址',MASTER_USER='从复制账号',MASTER_PASSWORD='密码',MASTER_LOG_FILE='mysql-bin.00000X',MASTER_LOG_POS=1;

3	#slave start;

总结 这个东西的封装后的脚本是很强大 用来做主从配置也很快 但是有个问题 就是不支持远程备份。你比如说 你想从Win服务器备份到Linux的就蛋疼了。这个软件的主要文档和参考资料的环境几乎都是基于LINUX的。WIN下着实蛋疼。。。