ESXi 7.0.1 → XCP-ng 8.3 import fails immediately at disk stage with “stream has ended without data, was looking for 134 bytes” (via vCenter)

[ItzJay]

Environment:

• Xen Orchestra Appliance 6.1.0-43 (6.2.0)
• XCP-ng 8.3
• XOA running on same XCP-ng host
• Default Local LVM SR (1.44 TB free)

Source:
• ESXi 7.0.1-16850804-standard
• Managed by vCenter 7.0.3.00500
• Connected to XO via vCenter endpoint
• Source datastore VMFS6
• Thin provisioned disks

Network:
• XO and XCP-ng host have interfaces on ESXi VLAN
• Bonded network
• MTU 1500
• No firewall/IDS in path

Behavior:
Import steps succeed until disk phase:
Connects to vCenter
Retrieves metadata
Creates VM on XCP side
Builds disk chain
Immediately fails when disk import begins

Error:
Error: stream has ended without data, was looking for 134 bytes
at readChunkStrict (@vates/read-chunk)

Additional Observations:
• Reproducible 100%
• Occurs on all VMs tested
• Happens at same stage
• Changing concurrency (2 → 1) has no effect
• Restarting xo-server does not change behavior
• No snapshots
• VMs boot normally on ESXi
• sslVerify disabled

[florent]

@ItzJay in your journalctl -i xo-server log you should have something like nbdkit logs of ${diskPath} are in ${tmpDir} where tmpDir is something like /tmp/xo-serverXXXX/stderr

can you post the file ?

alternatively, you can open a support ticket