A user reported a job which wouldn't schedule:
This is because the region has no TPUs of the requested type. We should have a pre-check in Iris at job submission time which checks if the job constraints can be satisfied by the available autoscaler pools. If not, the job request should be rejected with an appropriate message.
A similar issue occurs if a user requests an invalid region, or zone. A common source of failure is specifying a zone name for a region or vice versa.
A user reported a job which wouldn't schedule:
This is because the region has no TPUs of the requested type. We should have a pre-check in Iris at job submission time which checks if the job constraints can be satisfied by the available autoscaler pools. If not, the job request should be rejected with an appropriate message.
A similar issue occurs if a user requests an invalid region, or zone. A common source of failure is specifying a zone name for a region or vice versa.