Last week, we began to get errors while trying to scale up our VM Scale Sets that are configured to launch low priority VMs:
The operation couldn't be completed as it results in exceeding quota limit of LowPriorityCores. Maximum allowed: 10, Current in use: 14, Additional requested: 44.
This error message is interesting for a few reasons:
At the time we had around 20 VMs in the scale set, each with 2 vCPUs
It tells us that we were already over the quota
Our quota for that VM size is 200 vCPUs
While we were in this over-quota state, we were unable to create ANY VMs in that location -- not within that scale set and not regular, ad-hoc VMs.
This issue started in one location and has since spread to others without notice or warning.
Our only way to fix this was to delete the scale set and re-create it with regular VMs. We have since created a duplicate scale set with 5 VMs (10 vCPUs) which seems to be the limit of some new quota.
Since then, we've noticed that any low priority VMs we have running are not being counted against any of our vCPU quotas.
Is this the introduction of a new quota?