How to fix Insufficient cpu in Kubernetes

What this error means

Scheduler cannot find node with CPU

Typical symptoms

• pod pending
• insufficient message
• high CPU
• cannot scale
• autoscaler fails

Common causes

1. request too high
2. many CPU pods
3. small nodes
4. too many pods
5. system CPU

How to fix "Insufficient cpu"

Advanced notes

Related errors

• Failed to connect to server: connection refused (HTTP/2)

  How to fix "HTTP/2 connection refused" error in Kubernetes

  HIGH

• missing request for cpu in container

  How to fix "missing request for cpu in container" in Kubernetes HPA

  HIGH

• error: invalid configuration

  How to fix "error: invalid configuration" in Kubernetes

  HIGH

Official resources & further reading

• 📚Kubernetes Official Documentation
• 📖
  Kubernetes Docs: assign cpu resource(Official Docs)
• 💬
  Stack Overflow: pod in pending state due to insufficient cpu(Stack Overflow)
• 🔗
  containersolutions.github.io: 0 nodes available insufficient