I have tried both finalize and cancel using
https://kvmo.cedar-republic.com/ovirt-engine/api/imagetransfers and curl (for example);
curl -u 'admin@internal':'PASSWORD' -X POST
https://kvmo.cedar-republic.com/ovirt-engine/api/imagetransfers/19bb57ac-...
-k
But still they are listed in the "initializing" phase, so wedged:
<image_transfers>
<image_transfer
href="/ovirt-engine/api/imagetransfers/5e8b4b53-1b14-499c-b1fb-f47ddb561c85"
id="5e8b4b53-1b14-499c-b1fb-f47ddb561c85">
<actions>
<link
href="/ovirt-engine/api/imagetransfers/5e8b4b53-1b14-499c-b1fb-f47ddb561c85/resume"
rel="resume"/>
<link
href="/ovirt-engine/api/imagetransfers/5e8b4b53-1b14-499c-b1fb-f47ddb561c85/cancel"
rel="cancel"/>
<link
href="/ovirt-engine/api/imagetransfers/5e8b4b53-1b14-499c-b1fb-f47ddb561c85/pause"
rel="pause"/>
<link
href="/ovirt-engine/api/imagetransfers/5e8b4b53-1b14-499c-b1fb-f47ddb561c85/finalize"
rel="finalize"/>
<link
href="/ovirt-engine/api/imagetransfers/5e8b4b53-1b14-499c-b1fb-f47ddb561c85/extend"
rel="extend"/>
</actions>
<active>false</active>
<direction>download</direction>
<format>cow</format>
<inactivity_timeout>172800</inactivity_timeout>
<phase>initializing</phase>
<shallow>false</shallow>
<timeout_policy>legacy</timeout_policy>
<transferred>0</transferred>
</image_transfer>
<image_transfer
href="/ovirt-engine/api/imagetransfers/57bdaf89-414b-4431-bcfb-4ecb8b94d209"
id="57bdaf89-414b-4431-bcfb-4ecb8b94d209">
<actions>
<link
href="/ovirt-engine/api/imagetransfers/57bdaf89-414b-4431-bcfb-4ecb8b94d209/resume"
rel="resume"/>
<link
href="/ovirt-engine/api/imagetransfers/57bdaf89-414b-4431-bcfb-4ecb8b94d209/cancel"
rel="cancel"/>
<link
href="/ovirt-engine/api/imagetransfers/57bdaf89-414b-4431-bcfb-4ecb8b94d209/pause"
rel="pause"/>
<link
href="/ovirt-engine/api/imagetransfers/57bdaf89-414b-4431-bcfb-4ecb8b94d209/finalize"
rel="finalize"/>
<link
href="/ovirt-engine/api/imagetransfers/57bdaf89-414b-4431-bcfb-4ecb8b94d209/extend"
rel="extend"/>
</actions>
<active>false</active>
<direction>download</direction>
<format>cow</format>
<inactivity_timeout>172800</inactivity_timeout>
<phase>initializing</phase>
<shallow>false</shallow>
<timeout_policy>legacy</timeout_policy>
<transferred>0</transferred>
</image_transfer>
<image_transfer
href="/ovirt-engine/api/imagetransfers/26a04e2e-23dc-4db8-9289-e91ad06fa0ee"
id="26a04e2e-23dc-4db8-9289-e91ad06fa0ee">
<actions>
<link
href="/ovirt-engine/api/imagetransfers/26a04e2e-23dc-4db8-9289-e91ad06fa0ee/resume"
rel="resume"/>
<link
href="/ovirt-engine/api/imagetransfers/26a04e2e-23dc-4db8-9289-e91ad06fa0ee/cancel"
rel="cancel"/>
<link
href="/ovirt-engine/api/imagetransfers/26a04e2e-23dc-4db8-9289-e91ad06fa0ee/pause"
rel="pause"/>
<link
href="/ovirt-engine/api/imagetransfers/26a04e2e-23dc-4db8-9289-e91ad06fa0ee/finalize"
rel="finalize"/>
<link
href="/ovirt-engine/api/imagetransfers/26a04e2e-23dc-4db8-9289-e91ad06fa0ee/extend"
rel="extend"/>
</actions>
<active>false</active>
<direction>download</direction>
<format>cow</format>
<inactivity_timeout>172800</inactivity_timeout>
<phase>initializing</phase>
<shallow>false</shallow>
<timeout_policy>legacy</timeout_policy>
<transferred>0</transferred>
</image_transfer>
<image_transfer
href="/ovirt-engine/api/imagetransfers/19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d"
id="19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d">
<actions>
<link
href="/ovirt-engine/api/imagetransfers/19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d/resume"
rel="resume"/>
<link
href="/ovirt-engine/api/imagetransfers/19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d/cancel"
rel="cancel"/>
<link
href="/ovirt-engine/api/imagetransfers/19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d/pause"
rel="pause"/>
<link
href="/ovirt-engine/api/imagetransfers/19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d/finalize"
rel="finalize"/>
<link
href="/ovirt-engine/api/imagetransfers/19bb57ac-0d16-4f0f-aa4d-a5b1a6c8c54d/extend"
rel="extend"/>
</actions>
<active>false</active>
<direction>download</direction>
<format>cow</format>
<inactivity_timeout>172800</inactivity_timeout>
<phase>initializing</phase>
<shallow>false</shallow>
<timeout_policy>legacy</timeout_policy>
<transferred>0</transferred>
</image_transfer>