A KVM VPS does not start in SolusVM: error: (domain_definition):1: Document is empty (null))

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Applicable to:

  • SolusVM

Symptoms 

  • A KVM VPS does not start in SolusVM
  • When trying to start the VPS with debug at SolusVM > Virtual Servers > VPS > Reboot(Debug):

    SVM_ERROR: error: Failed to create domain from /home/kvm/kvm103/kvm103.xml
    error: (domain_definition):1: Document is empty
    (null)

    Or

    SVM_ERROR: error: Failed to open file '/home/kvm/kvm103/kvm103.xml': No such file or directory

    Or

    SVM_ERROR: <html>
    <head><title>500 Internal Server Error</title></head>
    <body>
    <center><h1>500 Internal Server Error</h1></center>
    <hr><center>nginx</center>
    </body>

Cause

/ partition on KVM node has no free space:

# df -h /
Filesystem Size Used Avail Use% Mounted on
/dev/nvme0n1p2 39G 39G 0G 100% /

KVM node is unable to start the VPS due to insufficient disk space.

Resolution

Free up or increase the disk space on the slave node.

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