In MySQL and MariaDB, the expire_logs_days option specifies the number of days for automatic binary log deletion. Bobcares, as a part of our MySQL Support offers solutions to every query that comes our way.

The “expire_logs_days” option in MariaDB

The expire_logs_days option in MariaDB specifies the number of days for automatic binary log deletion. Binary logs are used for a variety of tasks, including replication and point-in-time recovery. These logs can waste disk space over time, therefore they must be managed properly.

The following steps show the working of the parameter:

1. When this option is set to a positive integer value, the server deletes binary log files that are older than the provided number of days.

2. The automated binary log purging is deactivated, and binary logs are not destroyed depending on the time when the parameter is set to 0.

3. Setting expire_logs_days to a negative value has the same effect as setting it to 0. The binary logs will not be automatically removed depending on time.

An Example

In this case, binary log files older than 6 days will be removed automatically. While enabling automated binary log purging with expire_logs_days can help with disk space management, it’s critical to examine the individual use case as well as any replication or backup requirements. If we have critical replication settings or require point-in-time recovery, make sure we keep enough binary logs to enable these activities properly.

If we edit the my.cnf or my.ini files, we must restart the MariaDB service for the changes to take effect.

When updating database setup parameters, always proceed with caution, since incorrect settings can result in data loss or other unexpected behavior. Before implementing changes to production systems, make backups and test them in a controlled environment.

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Conclusion

To conclude, the article went over the details of the expire_logs_days option in MariaDB, provided by our Tech team.