Hello community,
I am trying to inspect a migration failure using the steps described
here (
https://wiki.qemu.org/Features/Migration/Troubleshooting#:~:text=on%20gra....).
In the fourth step, it suggests using migrate 'exec:cat > /dev/null' to try
dumping vm state on the source node. Since the virtual machine is
controlled by libvirt, I suppose I could using the following command,
virsh qemu-monitor-command --hmp <instance-id> 'migrate "exec:cat >
/dev/nulll"
but it failed with 2023-02-24T02:56:07.347307Z qemu-system-x86_64: Unable
to write to command: Broken pipe
So my question is how to use this command using libvirt? Thank you very
much for the help.
--
Best Regards,
Jiatong Shen