The self-diagnostics service collects the information about the system metrics and checks the operation of all Axxon Next components. The data obtained are compared with the indicators of the normal operation of the system. When deviations occur, system health alerts are generated, which can be tracked in the web interface (see Viewing metrics in the self-diagnostics service).

Examples of errors that are tracked:

• Out of RAM.
• Camera is connected but does not send data.
• No events from a detection tool.
• Archive doesn't work.
• The frame rate is 0 when recording to the archive.
• No video is recorded on detection.
• Any internal errors of Axxon Next.
• Out of system disk space.

The self-diagnostics service has the following rules for cleaning the system disk:

• If less than 20 GB of free memory remains on the system disk, all server logs, including the archived logs, are deleted from the system disk.
• If less than 15 GB of free memory remains on the system disk, the cleanup mechanism of the PostgreSQL event database deletes all events older than one week.