AppDynamics Application Intelligence Platform
This topic discusses best practices for managing disk space for the MySQL database used by the Controller.
To ensure database integrity, the Controller automatically shuts itself down when available disk space falls below 1 GB.
Before it reaches that point, however, the Controller displays a low disk space alert in the UI and writes an error level event to server.log. The point at which the Controller generates the alert depends on its profile, as follows:
The Controller shuts itself down when there is less than 1 GB on the disk regardless of the Controller profile type. You can disable automatic shutdown based on disk space as described below.
It's important to note that the Controller monitors the disk or partition that it is installed on. If the Controller data resides on a different disk or partition from the Controller home directory, you will need to monitor available space on that disk or partition separately.
If the disk space is low, you need to reduce the size of the Controller database.
To manage how much disk space the Controller database uses, you change the amount of data retained in the Controller database. See Database Size and Data Retention.