Kubernetes - Resource Management
If a node has 2 CPUs and two pods each request 1 CPU, what happens when both pods try to use 1.5 CPUs simultaneously?
If a node has 2 CPUs and two pods each request 1 CPU, what happens when both pods try to use 1.5 CPUs simultaneously?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand CPU requests and node capacity
Each pod requests 1 CPU, total 2 CPUs requested, matching node capacity.Step 2: Analyze CPU usage above requests
Pods can burst above requests but limited by node CPU. Both trying 1.5 CPUs means total 3 CPUs needed, exceeding node capacity.Step 3: Kubernetes throttles pods to their limits
Pods are throttled to their CPU limits or node capacity, so both get throttled to 1 CPU each.Final Answer:
Both pods are throttled to 1 CPU each -> Option DQuick Check:
CPU overuse on node = throttling to requests [OK]
Quick Trick: Pods can't exceed node CPU; throttling applies [OK]
Common Mistakes:
- Assuming pods get more CPU than node capacity
- Thinking pods are killed for overuse
- Believing one pod gets more CPU unfairly
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