Use xb mysql data file recovery

1. Install Tool Percona XtraBackup

• 5.6 and previous versions of MySQL need to install Percona XtraBackup 2.3, installation instructions, see the official documentation Percona XtraBackup 2.3 .
• MySQL 5.7 version needs to be installed Percona XtraBackup 2.4, installation instructions, see the official documentation Percona XtraBackup 2.4 .
• MySQL 8.0 version needs to be installed Percona XtraBackup 8.0, installation instructions, see the official documentation Percona XtraBackup 8.0 .
  
  

2. Install qpress

    First install percona-release-0.1-4

    yum install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpm

    yum update percona-release

    yum install qpress

 

3. Unpack

    For tar archive (.tar.gz suffix), use the command:

    tar -izxvf <数据备份文件名>.tar.gz -C /home/mysql/data

    For xbstream compressed (.xb.gz suffix), use the command:

    gzip -d -c <数据备份文件名>.xb.gz | xbstream -x -v -C /home/mysql/data

    For xbstream package (_qp.xb suffix), use the command:

 ## 解包
    cat <数据备份文件名>_qp.xb | xbstream -x -v -C /home/mysql/data
 ## 解压
    innobackupex --decompress --remove-original /home/mysql/data

Description -C: Specifies the files to be extracted to the directory. An optional parameter to specify if you extract to the current directory

 

At 4. mv / home / mysql / data / library folder to / var / lib / mysql (depending on the need to modify the database data path)

 

5 .systemctl restart mysqld # restart the database

 

problem:

1. The report does not exist

Processing Method: ibdata1 copy to add to the file at datadir

 

Reference Address: https://blog.csdn.net/ganggang4321/article/details/100879238 [installation] qpress

                  https://help.aliyun.com/knowledge_detail/41817.html?spm=5176.13394938.0.0.3ab47cffzhsz7V  [Processing Data]

                  https://www.cnblogs.com/nsh123/p/11627462.html [of] the error report does not exist