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HomeDatabaseMysql TutorialMTR: Steps for database backup and recovery using MySQL testing framework

MTR: Steps for database backup and recovery using MySQL testing framework

Jul 13, 2023 pm 03:09 PM
database backupDatabase recoverymysql testing framework

MTR: Steps to use the MySQL test framework for database backup and recovery

Introduction:
MySQL is a common relational database management system used to store and manage large amounts of data. MTR (MySQL Test Framework) is a testing tool officially provided by MySQL for comprehensive automated testing of MySQL. This article will introduce how to use MTR for database backup and recovery.

1. Install MTR
To use MTR for data backup and recovery, you first need to install the MTR tool. Below are the steps to install MTR in Linux system.

  1. Download MTR compression package
    First, visit the MySQL official website (https://dev.mysql.com/downloads/mysql/), find the appropriate MTR version, and download the corresponding compression Bag.
  2. Decompress MTR
    Use the following command to decompress the MTR compressed package you just downloaded:

    tar zxvf mtr-x.x.x.tar.gz
  3. Compile and install MTR
    Enter the decompressed MTR directory, and use the following commands to compile and install MTR:

    cd mtr-x.x.x
    ./configure
    make
    sudo make install

After the installation is completed, MTR has been successfully installed in the system.

2. Backup the database
Using MTR to back up the database is very simple and only requires a few simple steps.

  1. Create a backup test case
    First, you need to create a backup test case. This test case will tell MTR which database needs to be backed up. The following is an example test case file (backup.test):

    #--source include/have_backup_plugin.inc
    #--source include/have_innodb_plugin.inc
    #--source include/have_ndbcluster_plugin.inc
    
    #--source include/have_innodb.inc
    #--source include/have_ndbcluster.inc
    
    connection default;
    use test;
    
    --disable_query_log
    --exec $MYSQL_ADMIN --force flush-logs
    --enable_query_log
    
    # Do a backup
    --exec $MYSQLDUMP test > $MYSQLTEST_BACKUP_DIR/backup.sql
  2. Run the backup test case
    Use the following command to run the backup test case:

    mtr backup.test
  3. Check the backup file
    After the backup is completed, you can find the backup sql file, the backup.sql file, in the specified directory ($MYSQLTEST_BACKUP_DIR).

3. Restore the database
Using MTR to restore the database is also very simple. It is similar to backup and only requires a few simple steps.

  1. Create a recovery test case
    First, you need to create a recovery test case. This test case will tell MTR which database needs to be recovered. The following is a sample test case file (restore.test):

    #--source include/have_backup_plugin.inc
    #--source include/have_innodb_plugin.inc
    #--source include/have_ndbcluster_plugin.inc
    
    #--source include/have_innodb.inc
    #--source include/have_ndbcluster.inc
    
    connection default;
    use test;
    
    # Restore from backup
    --exec $MYSQL test < $MYSQLTEST_BACKUP_DIR/backup.sql
  2. Run the recovery test case
    Use the following command to run the recovery test case:

    mtr restore.test
  3. Check the database
    After the recovery is completed, you can use the MySQL client to connect to the database and query whether the data has been successfully recovered.

4. Summary
This article introduces the steps of how to use MTR (MySQL test framework) to perform database backup and recovery. Through the MTR tool, we can easily back up and restore the MySQL database to avoid problems such as data loss or recovery difficulties. I hope this article can be helpful to readers in the process of learning and using MTR.

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