Skip to main content

Why is ephemeral storage a common cause of node instability?

Senior Kubernetes
Quick Answer Containers write logs (stdout/stderr), and the container runtime stores them as files on the node. Each container restart adds a new log file. Containers that restart frequently (CrashLoopBackOff) create many log files. Large or unbounded log files fill the node's ephemeral storage รขโ‚ฌโ€ triggering kubelet's hard eviction and removing Pods from the node.

Answer

Logs, layers, and temp files fill disk, triggering evictions.
S
SugharaIQ Editorial Team Verified Answer

This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

Want to bookmark, take notes, or join discussions?

Sign in to access all features and personalize your learning experience.

Sign In Create Account

Source: SugharaIQ

Ready to level up? Start Practice