Gamelift -> EC2 -> Fleet -> Metrics -> Hardware metrics are no longer displayed (No data available)?

Yes, there have been some recent changes to Amazon GameLift's fleet metrics. Amazon GameLift has added support for hardware performance metrics for managed EC2 fleets. These new metrics include CPU utilization, network traffic volume, and disk read/write activity. These are standard EC2 instance metrics that represent hardware performance across all active instances in a fleet location.

However, if you're not seeing these metrics displayed and are getting a "No data available" message, it could be due to a few reasons:

1. The fleet might not have been running long enough to generate metrics data.
2. There might be an issue with the data collection or reporting process.
3. The metrics might be available but not visible in the console you're using.

To troubleshoot this:

1. Ensure your fleet has been running for a sufficient amount of time to generate metrics.
2. Check if you can view these metrics using an Amazon CloudWatch dashboard in the AWS Management Console, as they should be available there as well.
3. Verify that you're looking at the correct fleet and location, as these metrics represent performance across all active instances in a specific fleet location.
4. If the issue persists, it might be worth contacting AWS support to investigate if there's a technical problem with the metrics display for your account.

It's worth noting that while activity metrics like current player sessions are working, the hardware metrics are a separate feature and might be affected by different factors. If this problem continues, reaching out to AWS support would be the best course of action to resolve the issue.
Sources
Announcement - Amazon GameLift adds Fleet Hardware Metrics | AWS re:Post
Amazon GameLift release notes - Amazon GameLift