Mysql Server Crash Leads To Database Corruption

MySQL is a popular and advanced RDBMS (Relational Database Management System) that offers efficient reliability of your precious data

. However, in some situations, MySQL server might crash due to some database problems and encounter severe data loss. Corruption renders your database unusable and inaccessible. Application cannot recognize the database. At this point, you need to restore your significant data from the most recent backup. However, if backup is not available, MySQL database recovery becomes need of hour.

When MySQL application crashes, the database becomes un-mountable. At this point, server throws numerous error messages that help you identify the cause of this issue. As a practical example of this problem with MySQL database management system, you might encounter the below error message when you try to mount the database-

Version: '5.0.20-nt' socket: '' port: 3306 MySQL Community Edition (GPL)

InnoDB: Error: page n:o stored in the page read in is 2719, should be 3383!

InnoDB: Error: page n:o stored in the page read in is 2720, should be 3384!

InnoDB: Database page corruption on disk or a failed

InnoDB: file read of page 3384.

InnoDB: You may have to recover from a backup.

060725 6:59:18 InnoDB: Page dump in ascii and hex (16384 bytes):

When this error occurs, you cannot access any of the database records. The issue most frequently occurs with the databases based on InnoDB storage engine and you need to repair MySQL database to get your data recovered.

Root of the issue

You may encounter this behavior of MySQL Server due to database corruption. Corruption might occur due to various reasons, which include virus infection, improper system shutdown, operating system malfunction, user errors, and application crash.

Solution

Try out the below MySQL repair methods to recover MySQL database in such cases-

As stated in the above error message, you can restore database from the most recent backup. It is the most efficient MySQL recovery technique.

In case an adequate and updated backup is not in place, you are required to opt for alternative MySQL database recovery solution, which is to use MySQL repair software.

MySQL recovery software are designed to thoroughly scan entire database and recover MySQL database to a working state. They enable you to repair MySQL database in an easy and safe way with interactive user interface and read-only design.

Stellar Phoenix Database Recovery for MySQL is the most effective solution to repair and restore damaged databases of both InnoDB and MyISAM storage engines.

by: mark willium

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