On restore snapshot: Failed to create the VirtualBox object! (#18823)

[Splarv]

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ModEdit; related ticket: #18823: Failed to create the VirtualBox object!

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I develop HA cluster and use VirtualBox to test the system in loop. On some tests I restore all VMs to the snapshot by command:

Code: Select all

VBoxManage snapshot "$host" restore "$snapshot"

And sometimes get error:

+ VBoxManage snapshot tuchanka0a restore setup
VBoxManage: error: Failed to create the VirtualBox object!
VBoxManage: error: Code NS_ERROR_FACTORY_NOT_REGISTERED (0x80040154) - Class not registered (extended info not available)
VBoxManage: error: Most likely, the VirtualBox COM server is not running or failed to start.

Ticket is #18823 ( I can not post direct link yet.) I'll attach log to the ticked.

[socratis]

I could swear that I replied to you, either here or in the ticket, but maybe I closed the tab before I hit the submit button?

and use VirtualBox to test the system in loop

Can we see the script that you're using for the loop? You might be not giving enough breathing room for VirtualBox to process all commands, you may need to introduce a delay (or two or more) in there somewhere...