Skip to content

Latest commit

 

History

History
24 lines (16 loc) · 1.32 KB

faq.md

File metadata and controls

24 lines (16 loc) · 1.32 KB
Raw

Frequently Asked Questions

kubelet dies saying: failed to get device for dir "/var/lib/kubelet": could not find device ... in cached partitions map

This error happens when the filesystem of /var/lib/kubelet is tmpfs.

kubelet uses /var/lib/kubelet directory to prepare Pod volumes and local ephemeral storages.

To limit and request usage of local ephemeral storages, kubelet has a feature gate called LocalStorageCapacityIsolation. When LocalStorageCapacityIsolation is enabled (default since Kubernetes 1.10), kubelet tries to identify the underlying block device of /var/lib/kubelet. If tmpfs is used for /var/lib/kubelet, kubelet dies because there is no underlying block device.

You have several options to workaround the problem:

  1. Use filesystem other than tmpfs.

  2. Specify another directory by --root-dir option.

  3. Disable the feature gate by adding the following extra_args to kubelet.

    --feature-gates=LocalStorageCapacityIsolation=disable