GameLift fleet issues.

Amazon GameLift fleet issues can occur for various reasons, affecting the availability and performance of your game servers. Here are some common causes and steps to address GameLift fleet issues:

1. Check Fleet Status:
   • Navigate to the Amazon GameLift console and review the status of your fleet. Ensure it's in a valid state for hosting game sessions.
2. Monitor Fleet Metrics:
   • Monitor key fleet metrics such as CPU utilization, memory usage, and instance health. Look for patterns or anomalies that might indicate issues.
3. Inspect Scaling Policies:
   • Review the auto-scaling policies associated with your fleet. Ensure they are correctly configured to scale based on your game's player demand.
4. Verify Fleet Capacity:
   • Confirm that your fleet has sufficient capacity to handle the expected player load. If not, consider resizing the fleet or adjusting auto-scaling policies.
5. Review Game Server Logs:
   • Access the logs generated by your game servers to look for error messages, warnings, or any other information that might provide insights into the cause of the issues.
6. Check IAM Roles and Permissions:
   • Verify that the IAM roles associated with your fleet instances have the necessary permissions to access resources like S3, DynamoDB, and any other required services.
7. Inspect Fleet Instances:
   • Review the EC2 instances associated with your fleet. Check for any issues with instance health, connectivity, or performance.
8. Monitor GameLift Event Stream:
   • Use the GameLift Event Stream to receive real-time updates about events related to your fleet, such as instance start or termination.
9. Handle Scaling Events:
   • If your fleet is set up for auto-scaling, ensure that it is responding appropriately to scaling events based on player demand.
10. Verify GameLift Fleet Capacity Limits:
    • Ensure that you're not exceeding any fleet capacity limits set by AWS GameLift.
11. Consider Fleet Diversification:
    • If your game requires multiple server types (e.g., different instance types, and operating systems), consider setting up a fleet with diversified resources.
12. Monitor for AWS Service Health Issues:
    • Check the AWS Service Health Dashboard for any reported issues with the GameLift service.
13. Implement Game Server Health Checks:
    • Use health checks within your game server code to report its status to GameLift. GameLift will replace unhealthy instances automatically.
14. Regularly Review Fleet Performance:
    • Periodically review fleet performance metrics to identify any trends or anomalies that might indicate issues.
15. Contact AWS Support:
    • If you've gone through these steps and are still experiencing fleet issues, consider reaching out to AWS Support for further assistance.

Remember to also refer to the GameLift documentation for best practices and troubleshooting specific to your game and use case.