Managed Blockchain network issues.

AWS Managed Blockchain network issues can occur for various reasons, affecting the availability and performance of your blockchain network. Here are some common causes and steps to address Managed Blockchain network issues:

1. Check Network Status:
   • Navigate to the AWS Managed Blockchain console and review the status of your network. Ensure it's in an active and healthy state.
2. Monitor Network Metrics:
   • Keep an eye on key network metrics such as transaction throughput, latency, and member health. Look for patterns or anomalies that might indicate issues.
3. Review Network Configuration:
   • Verify the configuration settings of your blockchain network, including the consensus mechanism, member nodes, and networking options.
4. Inspect Member Nodes:
   • Review the status of individual member nodes in your network. Check for any nodes that might be offline or experiencing issues.
5. Check for Transaction Backlogs:
   • If there's a high transaction volume, check for backlogs. Consider adjusting the network's capacity or optimizing the smart contracts.
6. Verify IAM Roles and Permissions:
   • Confirm that the IAM roles associated with your Managed Blockchain network have the necessary permissions to access resources and perform blockchain operations.
7. Inspect Peer Node Endpoints:
   • Confirm that the endpoints of peer nodes are reachable and that there are no network-related problems affecting connectivity.
8. Handle Ordering Service Issues:
   • If you're using Hyperledger Fabric, ensure that the ordering service (ordering nodes) is running and properly configured.
9. Monitor for AWS Managed Blockchain Service Health Issues:
   • Check the AWS Service Health Dashboard for any reported issues with the Managed Blockchain service.
10. Regularly Review Network Performance:
    • Periodically review network performance metrics to identify any trends or anomalies that might indicate issues.
11. Inspect Smart Contracts and Chaincode:
    • Review the smart contracts and chain codes deployed on the network. Check for any errors or issues in the code.
12. Implement Scaling Strategies:
    • Consider scaling the network by adding more member nodes or adjusting capacity to handle increased transaction loads.
13. Set Up CloudWatch Alarms:
    • Create CloudWatch Alarms to be notified of critical network metrics that might indicate problems.
14. Contact AWS Support:
    • If you've gone through these steps and are still experiencing network issues, consider reaching out to AWS Support for further assistance.

Remember to also refer to the AWS Managed Blockchain documentation and best practices for guidance specific to your blockchain network use case.