3/27/2023 0 Comments Stellar repair for video hack![]() To our dismay, the backup was not up-to-date, hence, restoring MySQL database through obsolete backup could have incurred data loss. Repair MySQL Table by using MySQL repair softwareĪs restoring MySQL database through backup is considered the most effective process to retrieve the inaccessible database, we tried to restore the inaccessible MySQL data through backup. ![]() We formulated a plan of action to get the MySQL database online, which included the following major activities: The inaccessible database had resulted in a major crisis and we as database administrators had to get the system up and running, ASAP. The process resulted in MySQL server becoming inaccessible and ultimately, database users were not able to fetch data from the storage system.Ī high priority ticket was raised by the Helpdesk Manager, which alerted our IT operations team – the database, backup, monitoring and maintenance administrators. This process involved updating the indexes for those character columns, which were utilizing the collation. We tried correcting the error with the help of ‘Table Rebuild’. A series of crashes ultimately led to serious corruption issue in the MySQL database. For that, we dumped the Tables from the database with the help of SELECT….INTO OUTFILE command, but using this command caused the InnoDB background operations to crash, which further resulted in InnoDB roll-forward recovery to crash. The need of the hour was to correctly identify the database page corruption. The following Server configuration was in use: Ubuntu 16.04 MySQL 5.7 Our database server was rendered inaccessible and it started displaying the following message: An error occurred in collation on the organization’s MySQL server and it resulted in InnoDB database corruption issue. This is exactly what happened with our storage engines in the MySQL application. A systematic disaster recovery plan must also be in place.ĭespite taking all the due measures, it sometimes becomes difficult to keep the database up and running. ![]() It must have a sound backup application, and this application must back up the data at regular intervals. Hence, it is not enough to install the database alone. ![]() One of the frequently faced problems in MySQL database is corruption in the Tables. ![]()
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