# 不占用mysql进行的备份的方式

## 安装过程
```
xtrabackup-24 安装
[root@centos7 ~]# yum -y install https://repo.percona.com/yum/percona-release-latest.noarch.rpm

# 加入该代码，启用这个repo
percona-release enable-only tools release

[root@centos7 ~]# yum -y  install percona-xtrabackup-24  
[root@centos7 ~]# yum -y  install qpress  ##innobackupex支持压缩导出，这里安装压缩工具
 
[root@centos7 ~]# innobackupex -version  ###如果出现如下提示表示安装成功，我这里2.4.15
xtrabackup: recognized server arguments: --server-id=11 --datadir=/data/mysql_data --tmpdir=/tmp --log_bin=bin.log --innodb_page_size=8192 --innodb_buffer_pool_size=2G --innodb_io_capacity=4000 --innodb_flush_method=O_DIRECT --innodb_undo_tablespaces=3 --innodb_log_file_size=128M --innodb_log_buffer_size=16777216 
innobackupex version 2.4.15 Linux (x86_64) (revision id: 544842a)
[root@centos7 ~]#


xtrabackup-80安装：（支持mysql8）

1.安装libev依赖
yum install libev
2.安装zstd依赖
yum install epel-release -y
yum install zstd -y 
3.安装Percona yum存储库
yum install https://repo.percona.com/yum/percona-release-latest.noarch.rpm -y
4.启用存储库
percona-release enable-only tools
5.安装xtrabackup
yum install percona-xtrabackup-80
至此，xtrabackup安装完成

```

## 使用
```

备份全库到本地：
xtrabackup  --user=root --password=1234qwer  --socket=/tmp/mysql.sock --backup --target-dir=/u01/apps/mysql8/datas/all_db --parallel=8 


xtrabackup  --user=root --password=1234qwer  --databases=mscode_auth  --socket=/tmp/mysql.sock --backup --target-dir=/u01/bak/mysql/backup/mscode_auth_db_`date +%F` --parallel=4 --compress --compress-threads=2 

--compress 压缩

```

## 测试实例
```
10分钟备份完： 13G
xtrabackup  --user=root --password=1234qwer  --socket=/tmp/mysql.sock --backup --target-dir=/u01/bak/mysql/backup/all_db_`date +%F` --parallel=4 --compress --compress-threads=2 

scp -r -P 2828 /u01/bak/mysql/backup/all_db_2024-09-07 root@172.16.88.150:/u01/bak   123qwe!!


2.还原：20分钟
解压：
xtrabackup --decompress --parallel=4 --target-dir=/u01/bak/all_db_2024-09-07
systemctl stop mysqld
cd /u01/apps/mysql8/datas
mv mysql mysqlbak
mv /u01/bak/all_db_2024-09-07 ./mysql
xtrabackup --prepare --apply-log-only --target-dir=/u01/apps/mysql8/datas/mysql
chown -R mysql.mysql ./mysql

启动数据库：

systemctl start mysqld

```


## 备份压缩
```
xtrabackup  --user=root --password=874eded4026f572f --databases=sql_seee_btcahol --tables-exclude=sql_seee_btcahol.failed_jobs  --socket=/tmp/mysql.sock --backup --target-dir=/u01/bak/db02_sql_seee_btcahol_`date +%F` --parallel=8 --compress --compress-threads=2 

*** 例2

xtrabackup  --user=root --password=874eded4026f572f --databases=sql_seee_btcahol --tables-exclude="failed_jobs|data_tvw|data_wvh|data_ifs|data_oyd|data_qbu|data_ady|data_aei|data_aei_copy1|data_bdw|data_ena|data_ifs|data_ihda|data_mrs|data_nfa|data_nxs|data_owv|data_owv_1|data_oyd|data_qbu|data_qdi|data_qyf|data_rgx|data_sgu|data_tda|data_tda_copy1|data_tes|data_tvw|data_tvw_1|data_uie|data_uio||data_uio_copy1||data_wtz||data_wvh||data_wvh_copy1||data_ydw||data_yfw||data_yis|| data_yug|| data_yuna||data_zdh|data_zgr"   --socket=/tmp/mysql.sock --backup --target-dir=/u01/bak/db06_sql_seee_btcahol_`date +%F` --parallel=8 --compress --compress-threads=2 

** 通用
`xtrabackup  --user=$mysql_user --password=$mysql_password --databases=$dbname --tables-exclude="failed_jobs${ignoretbs[@]}"   --socket=/tmp/mysql.sock --backup --target-dir=//www/embk/$dbname_`date +%F` --parallel=8 --compress --compress-threads=2`

```

## 参考网址

[mysql中xtrabackup全量备份/增量备份及恢复](https://www.jb51.net/database/327463ae4.htm)

[mysql-xtrabackup的使用](https://blog.csdn.net/line_on_database/article/details/130482851)

[MySQL备份之Xtrabackup](https://blog.csdn.net/Celeste7777/article/details/47354965)

[使用xtrabackup备份工具完全恢复MySQL数据库](https://www.modb.pro/db/1791643273223294976)