AuroraSlowConnectionHandleCount constant for months - cumulative metric or reporting issue

The AuroraSlowConnectionHandleCount metric is designed to track the number of slow connection handle operations, which can indicate potential connectivity issues or performance bottlenecks with your Aurora MySQL database.

Based on your description of the metric showing a constant value of around 3k for the past 3 months with a completely flat graph, this appears to be unusual behavior. This metric should not be a static value that remains unchanged for months.

The AuroraSlowConnectionHandleCount is not a cumulative lifetime counter - it should reflect the current number of slow connection handle operations during each reporting period. Under normal circumstances, you would expect to see this metric fluctuate as connection performance varies.

The fact that you're seeing exactly the same value (3245.0) reported consistently across all time periods suggests there might be an issue with how the metric is being reported or collected. This could potentially be:

1. A reporting issue with the metric collection
2. A problem with how the metric is being published from your Aurora instance
3. A configuration issue with your monitoring setup

Since this metric is important for identifying connectivity problems, I would recommend opening a support case with AWS to investigate why this metric appears to be stuck at a constant value, as this is not the expected behavior for the AuroraSlowConnectionHandleCount metric.
Sources
Troubleshooting connection issues for Aurora MySQL databases - Amazon Aurora
Amazon CloudWatch metrics for Amazon Aurora - Amazon Aurora