I tried to check the allocations on each compute node of a Ocata cloud, using the command:

curl -s ${PLACEMENT_ENDPOINT}/resource_providers/${UUID}/allocations -H "x-auth-token: $TOKEN" | python -m json.tool

I found that, on a few compute nodes, there are some instances for which there is not a corresponding allocation.

On another Rocky cloud, we had the opposite problem: there were allocations also for some instances that didn't exist anymore.

And this caused problems since we were not able to use all the resources of the relevant compute nodes: we had to manually remove the fwrong" allocations to fix the problem ...

I wonder why/how this problem can happen ...

And how can we fix the issue ? Should we manually add the missing allocations / manually remove the wrong ones ?

Thanks, Massimo