Help Center/ Cloud Container Engine/ User Guide (Kuala Lumpur Region)/ Clusters/ Upgrading a Cluster/ Troubleshooting for Pre-upgrade Check Exceptions/ Node Disks
Updated on 2024-07-27 GMT+08:00
View PDF
Share

Node Disks

Check Items

Check the following items:

  • Check whether the key data disks on the node meet the upgrade requirements.
  • Check whether the /tmp directory has 500 MB available space.

Solution

During the node upgrade, the key disks store the upgrade component package, and the /tmp directory stores temporary files.

  • Scenario 1: Master node disks fail to meet the upgrade requirements.

    Contact technical support.

  • Scenario 2: Worker node disks fail to meet the upgrade requirements.

    Check the usage of each key disk. After ensuring that the available space meets the requirements, check again.

    • Disk partition of Docker: at least 1 GB of available space 
      df -h /var/lib/docker
    • Disk partition of containerd: at least 1 GB of available space 
      df -h /var/lib/containerd
    • Disk partition of kubelet: at least 1 GB of available space 
      df -h /mnt/paas/kubernetes/kubelet
    • System disk: at least 2 GB of available space 
      df -h /
  • Scenario 3: The available space of the /tmp directory on worker nodes is insufficient.

    Run the following command to check the usage of the file system where the /tmp directory is located. Ensure that the space is greater than 500 MB and check again.

    df -h /tmp