Which of the following log file requirements is NOT necessary for auto-discovery?

The requirement regarding log file size being over 1 MB is not necessary for auto-discovery. Auto-discovery focuses primarily on identifying log files that contain useful and structured information for monitoring and analysis. The size of the log file itself does not impact its functionality in providing insights or being discovered by the system.

Essential factors for auto-discovery include having a supported timestamp format, which ensures that the log entries can be correctly interpreted in terms of time, and the requirement for logs to be opened by an important process, which signifies that the logs are relevant and actively being used. Additionally, having been updated in the last 7 days helps ensure that the logs are current and contain relevant data for ongoing analysis. Thus, while these are essential conditions, the file size does not play a critical role in the process of auto-discovery.