Thursday, March 18, 2010

Resolving “Database page corruption” Error in MySQL

MySQL database uses two storage engines- InnoDB and ISAM. InnoDB is the standard element of all current MySQL libraries. It supports several feature, which make it better than other storage engines. The features include foreign key support and storing data in primary key order. The InnoDB also features ACID properties- compliant transaction support, which allows it to recover from unforeseen crashes. In some situations, the InnoDB database may corrupt if you kill Mysqlid process, virus infection, improper system shutdown, application malfunction and many others. In such cases, you need to restore your database from most recent backup. If the backup is not available or up to date, you will require MySQL Repair solutions to retrieve data from damaged database.

In a practical scenario, you might come across below error message while trying to access data from an InnoDB database:

“Database page corruption on disk or a failed file read”

When this error message occurs, the MySQL application and database crashes down and renders all your critical data inaccessible. In order to gain access of your valuable data in such situations, you need to find out the cause of this behavior and go for MySQL Recovery by resolving it.

Root of the problem

As stated in the above error message, this problem occur due to corruption to the database pages or entire database. When database corruption occurs, MySQL can not read information from database and returns the error. However, other reasons of above problem can be improperly configured or damaged libraries.

Resolution

To sort out above problem, go through underwritten steps:

Check that all the linked libraries are correct and properly configured.
If the MySQL database is corrupted, use following steps to recover:
Analyze MySQL table corruption by this command:
Check Table tablename
Run following command to repair the damaged table:
Repair Table tablename
If the error message still occurs, repair and restore the damaged database using MySQL Repair software.

These are effective applications, which let you carry out absolute MySQL Database Recovery in most of the corruption scenarios. They are completely easy to use as they have interactive and simple graphical user interface. The software do not alter original contents of the database due to read-only behavior.

Database Recovery for MySQL is a powerful utility to handle all types of Repair MySQL Database corruption issues. It supports recovery from MySQL 5.x and 4.x. The software is compatible with Microsoft Windows Vista, 2003, XP and 2000 and all major Linux distributions.

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