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Scenario #90
Cluster Management
K8s v1.21, Azure AKS
High CPU Utilization Due to Inefficient Application Code
A container's high CPU usage was caused by inefficient application code, leading to resource exhaustion.
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What Happened
An application was running inefficient code that caused excessive CPU consumption, impacting the entire node's performance.
Diagnosis Steps
- 1Monitored the pod's resource usage and found high CPU utilization.
- 2Analyzed application logs and identified inefficient loops in the code.
Root Cause
The application code had an inefficient algorithm that led to high CPU consumption.
Fix/Workaround
• Optimized the application code to reduce CPU consumption.
• Redeployed the application with the optimized code.Lessons Learned
Application code optimization is essential for ensuring efficient resource usage.
How to Avoid
- 1Regularly profile application code for performance bottlenecks.
- 2Set CPU limits and requests to prevent resource exhaustion.