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Interesting Facts I bet You Never Knew about MySQL Binary Backup.

Nidhi Rai

January 07, 2019 09:48 PM

MySQL is the fastest growing open-source relational database management system with 100 million downloads today. The binary log is a set of log files that contain information about data modifications made to a MySQL server instance. The binary log was introduced in MySQL 3.23.14. It contains all statements that update data, as well as information about how long each statement took that updated data.

As a rapidly growing business, whether for your application or website, you already know that backing up your data is fundamental to the success of your business. Ideally, MySQL binary backupis renowned for its convenience and reliability as pertains data backup, which is heavy applications are dependent of MySQL for data storage and management.

To ensure you are properly informed in your use of MySQL data backup for your business, read through these interesting facts you probably were clueless about MySQL binary backup:

MySQL is not just for websites

Amazingly, MySQL binary logs have proven efficiency so much that they can be depended on for more than just websites. The MySQL database is now also being used as a transaction-processing database server and a data-analysis database server.

With powerful applications like Facebook, Wikipedia, YouTube and Twitter using MySQL, you are rest assured that you have the best backup solution to handle more than just your website.

MySQL binary logs as steps recorder

The MySQL binary log acts as a steps recorder; is a trace of changes of the server’s global state generated during its operation. The events that it contains describe changes of this state. More precisely, MySQL binary log events describe the actions that can be used to reproduce the same changes of global state which have happened on your server.

MySQL binary logs take up a lot of disk space

The MySQL binary logs are important for data recovery because they form the set of incremental backups. If you make sure to flush the logs when you make your full backup, the binary log files created afterward contain all the data changes made since the backup, which can pile up over a large workload in time.

These binary logs take up a lot of space; to free up space, purge them from time to time. One way to do this is by deleting the binary logs that are no longer needed. Even though full backups are necessary every so often, they produce large backup files and take time to generate, simply because they include all data, even the parts that have not changed since the previous full backup.

Data privacy

Binary logs have a way of leaving a trail of activities done on the server, which might be a security concern if your MySQL were to be accessed by public users.

To restrict MySQL from being accessed publicly, MySQL users rely on “Skip networking”, which is an option in the config file. This ensures that your MySQL only listens to local socket connections and ignores all other ports, allowing your MySQL to only be accessible only by the localhost.

SQL compatibility

MySQL supports Structured Query Language (SQL) as its database language, for querying and updating data and for the administration of a database.

MySQL binary logs determine recovery operations

Certain data recovery operations require use of the binary logs. After a backup file has been restored, for instance, the events in the MySQL binary log that were earlier recorded after the backup was first made are re-executed. These are the events that bring databases up-to-date from the point of the backup.

Mixed MySQL binary logging

Event thought there are two types of binary logging, mixed MySQL binary logging uses statement-based logging by default. This however does not despoil the fact that mixed logging switches to row-based logging automatically as need be.

There are a lot of speculations about what MySQL database backup is and what it is not, but with these facts, it is clear that for every undoing people create about MySQL, there is too much to benefit from it than not.