Issue: Slow or disrupted network connectivity can affect application performance.
Troubleshooting Tips:
Check Security Groups and Network ACLs: Ensure that security groups and network access control lists (NACLs) allow the necessary inbound and outbound traffic.
Use AWS CloudWatch: Monitor network performance metrics with CloudWatch to detect anomalies and bottlenecks.
Verify Routing: Confirm that route tables and VPC peering configurations are correctly set up.
2. Instance Health and Performance Issues
Issue: Instances may experience issues related to resource utilization, unresponsiveness, or errors.
Troubleshooting Tips:
Check EC2 Instance Status: Use the EC2 dashboard or AWS CLI to verify the status of your instances.
Review CloudWatch Metrics: Monitor CPU utilization, memory, disk I/O, and network metrics in CloudWatch to identify performance bottlenecks.
Instance Logs: Access instance logs (system, application, or custom logs) to troubleshoot application-specific issues.
3. Application Deployment and Scaling Issues
Issue: Scaling resources and deploying applications can lead to configuration errors or compatibility issues.
Troubleshooting Tips:
Review Auto Scaling Groups: Ensure that auto scaling groups are configured correctly and that instances are launching successfully.
Check AMI Compatibility: Verify that Amazon Machine Images (AMIs) used for instances are compatible with your application.
Use Elastic Beanstalk Logs: If you're using Elastic Beanstalk, examine application logs for errors and troubleshoot deployment issues.
4. AWS Service-Specific Issues
Issue: Problems with AWS services like RDS, S3, or Lambda can disrupt your applications.
Troubleshooting Tips:
AWS Service Health Dashboard: Check the AWS Service Health Dashboard for information on service status and ongoing incidents.
CloudWatch Alarms: Set up CloudWatch alarms to monitor the health of specific AWS resources, like RDS database instances.
Review Service Documentation: Consult AWS documentation for the specific service you're using to troubleshoot service-specific issues.
5. Security and Access Control Issues
Issue: Security misconfigurations or access control issues can lead to unauthorized access or data breaches.
Troubleshooting Tips:
IAM Policies: Review Identity and Access Management (IAM) policies to ensure proper permissions and security group configurations.
Security Group Rules: Double-check security group rules to make sure they're correctly set to allow or deny traffic.
Security Best Practices: Follow AWS security best practices to safeguard your resources and data.
6. Data and Storage Issues
Issue: Data integrity, availability, or access issues can disrupt applications and cause data loss.
Troubleshooting Tips:
Data Lifecycle Management: Use AWS tools to set up data lifecycle policies for S3 buckets, ensuring data retention and archiving.
EBS Volumes: Monitor the status and performance of Elastic Block Store (EBS) volumes and take snapshots regularly for backup.
Data Validation: Implement data validation and checksums to ensure data integrity.
7. Billing and Cost Optimization Issues
Issue: Unexpected high costs or billing discrepancies can strain your budget.
Troubleshooting Tips:
Billing Dashboard: Utilize the AWS Billing and Cost Management Dashboard to monitor and analyze your costs.
Resource Tagging: Tag your resources with meaningful labels to track costs more accurately.
AWS Trusted Advisor: Use AWS Trusted Advisor to get cost optimization recommendations.
AWS Course in Pune
