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Fix Error “MySQL is Marked as Crashed and Should be Repaired”

Megha Sharma
Megha Sharma Published On - 02 Mar 2020

MySQL is an open-source Relational Database Management System (RDBMS), which is written in C and C++ languages and supports multiple platforms including Windows, Linux, macOS, UnixWare, etc. It is used by various applications for data storage, online publishing, and web apps. Also, it is supported by Oracle.

It works based on the client-server model with MySQL Server as the server. You can store, access, or retrieve the data stored in the server anytime.

About the “MySQL is marked as crashed and should be repaired” Error

In this blog, we discuss to get a brief introduction to one of the common MySQL error- MySQL is marked as crashed and should be repaired.

Table ‘./dbname/table_name’ is marked as crashed and should be repaired

The MySQL error “MySQL is marked as crashed and should be repaired” may occur suddenly while you are accessing the MySQL. The frequency of the error is more after the forced shutdowns of MySQL Server. The other reasons could be the crash down of the MySQL Server, disk space shortage, hardware issues, power failures, etc. Whatever be the reason, you cannot access or use your MySQL tables anymore as it has been completely crashed.

What is the Immediate Remedy? – Restore from Backups

If you are a professional or a common MySQL Server user, you must have taken backups of the MySQL Server database files. With a recent backup of MySQL Server, it would be quite easy to restore the whole database again. But If you do not have backups for MySQL Server data, then you will have to find some other solutions on your own, which would take both effort and time. So, our suggestion is to take periodic backups of the MySQL database.

How to Fix Error “MySQL is marked as crashed and should be repaired” Without Backups?

Through myisamchk Tool

Users can find out the broken or crashed MySQL tables using the native tool provided by the MySQL application known as “myisamchk”.

Run this command on myisamchk command line.

# myisamchk -s /var/lib/mysql/*/*.MYI

It will list out the tables which are corrupted, and you would get to know where to make the fix.

Once you get to know the name of the tables that need repair, then you can execute the next command.

# myisamchk -r /var/lib/mysql/dbname/table_name.MYI

In the above command, you need to provide the table name which was found out in the first command (broken or crashed).

If the table is not repaired yet, you can try another command. Before that, just stop the web services, stop MySQLd and then run this command.

# myisamchk -r –update-state /var/lib/mysql/dbname/table_name.MYI

Next, restart the MySQLd and the web services and check if the error is fixed.

Even after executing these commands in myisamchk application, it might be possible that you get an incomplete recovery or no recovery at all. But we are here to help you.

What Should be Your Next Step? – Professional Third-Party Utility

If you want to recover the corrupt MySQL Server database completely and flawlessly, then you should go for the professional third-party utility which is reliable and efficient.

Here, we introduce you to the advanced Kernel for MySQL Database Repair tool for MySQL file recovery in very less time. It is designed with the latest technology and highly efficient programs to quickly fix all the corruption issues of MySQL database files and make the data accessible to the users.

Download

It effectively repairs all the issues of the MySQL file and makes the inaccessible data available for preview. Now, you can select the required data and then save it to either MySQL Server directly or to a batch file. Moreover, the advanced tool is compatible with all MySQL Server and Windows Operating System versions.

Final Words

MySQL database is popular among database users as it is open sources and is supported by Oracle. However, there are a few errors that make its data inaccessible. Here, we have discussed some manual solutions to fix one of the MySQL errors. And in case of an unsuccessful repair, we have suggested a professional tool at the end.