In this article, you will learn how to repair MySQL Tables.
There are two ways to repair the crashed MySQL tables.
- Repair MySQL Tables with SSH Method
- Repairing MySQL Tables with phpMyAdmin
But first of all, you need to take a backup.
Backup Your Database
To take the backup, follow the instructions:
- Login to your server using SSH
- Stop the MySQL server using the commands
For Debian and Ubuntu:
service mysql stop
For CentOS and Fedora
service mysqld stop
Run this command to make backup
cp -rfv /var/lib/mysql /var/lib/mysql$(date +%s)
This command copies all of the files from all of your databases to a directory name based on the current time.
- Restart the MySQL server using the command
For Debian and Ubuntu
service mysql start
For CentOS and Fedora
service mysqld start
After making the backup, you should know what to expect when you run the repair.
How long it takes to repair a MySQL table?
Time depends on the size of the table.
- A KB table would be repaired in a few seconds.
- If the size of the table is in MB, it may take up to minutes.
- GB size tables might take hours.
The larger the size, the more time it will take. If the table size is huge, it may even take days or weeks.
The time it takes in repairing also depends on available Ram and processing power.
You know what to expect, so let's begin:
There are two ways to repair MySQL Tables:
- SSH Method
- phpMyAdmin Method
Repair MySQL Tables with SSH Method
To repair MySQL tables, follow the instructions:
- Login to your MySQL server using SSH
- Run this command
mysqlcheck -r [database name]
Replace the database name with your database name.
mysqlcheck is the command to check the mysql, while -r means to begin the table repairing.
Repair MySQL Tables with phpMyAdmin Method
Follow the instructions to repair MySQL table via phpMyAdmin.
- Login to your cPanel.
- Look for the phpMyAdmin under database section
- In the left pane, select the database that you needs to repair
- In the right pane, select the database tables
- From the list box below, select repair.
- After fixing the MySQL table, phpMyAdmin will inform you.
Why the MySQL Table Crash?
The number one cause of crashing of MySQL Tables is running out of disk space
If you are working with a huge amount of data, keep checking the Disk storage.
Other causes could be:
- Operating System problems
- Power Failures
- Hardware Problems
- Abrupt Termination of Program
- Other Software meddling with the servers
What is MySQL and Why is it Used?
SQL means Structured Query language. MySQL is open-source software under the terms of GNU General Public License. It is compatible with the majority of operating systems, including, CentOS, Ubuntu, and Windows.
There are many Database Management Software.
MySQL is the best option for relational database management. Oracle Corporation handles its distribution and support.
Crashing of MySQL tables is inevitable. But if you know how to repair MySQL tables, there is no need to panic.
If you are a client of ServerGuy, just contact us. Our 24/7 team will help you in resolving the issue.
We hope you know how to fix crashed MySQL tables with SSH and phpMyAdmin now.
Still, any doubt, leave a comment.