Help Center/ Cloud Container Engine/ User Guide (ME-Abu Dhabi Region)/ Clusters/ Upgrading a Cluster/ Troubleshooting for Pre-upgrade Check Exceptions/ Node Disks
Updated on 2024-01-04 GMT+08:00
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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.

    Run the following command to check the usage of each key disk. After ensuring that the available space meets the requirements and 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