Kubernetes memory requests don't do what you think (until you enable MemoryQoS)
A recent article on roszigit.com highlights a potential pitfall in Kubernetes memory management. Kubernetes memory requests are often misunderstood to guarantee a specific amount of memory for a pod, but in reality, they only serve as a recommendation. This can lead to pods being terminated or throttled when memory is scarce. However, enabling MemoryQoS can help mitigate this issue.
This issue is relevant to developers and operators who rely on Kubernetes for containerized applications, as it can impact the reliability and performance of their deployments.
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Score: 2 on Hacker News
- ▸01Kubernetes memory requests do not guarantee a specific amount of memory for a pod.
- ▸02Memory requests are only recommendations and can be ignored by the Kubernetes scheduler.
- ▸03Enabling MemoryQoS can help manage memory usage and prevent pod termination or throttling.
- ▸04MemoryQoS is a feature that can be enabled to improve memory management in Kubernetes.
Kubernetes memory requests don't do what you think (until you enable MemoryQoS). Score: 2 on Hacker News
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