Limits on Concurrent Operations
Find out how many concurrent operations of a specific type Compute Cloud@Customer can manage at any particular time. These limits assume that no other operations of any kind are running at the same time. When a limit is exceeded, an error with code 409 or 429 is displayed.
| Resource Type | Operation | Concurrency Limit | 
|---|---|---|
| compute instance | back up or restore an instance | 10 | 
| compute instance | launch/terminate instance | 15 | 
| compute instance | reset/stop/start instance | 15 | 
| compute instance | update fault domain (live migration) | 10 | 
| compute image | create image from instance | 10 | 
| compute image | import image | 10 | 
| block volume | create/delete volume | 10 | 
| block volume | attach/detach boot volume | 15 | 
| block volume | attach/detach data volume | 15 | 
| block volume | resize volume | 15 | 
| file system | create/delete file system | 10 | 
| mount target | create/delete mount target | 10 | 
| VCN | create/delete VCN | 10 | 
| VCN gateway | create/delete gateway (all types) | 10 | 
| subnet | create/delete subnet | 10 | 
| route table | create/delete route table | 10 | 
| security list | create/delete security list | 10 | 
| network security group | create/delete network security group | 10 | 
| VNIC | attach/detach VNIC | 15 | 
| public IP | create/delete public IP | 10 | 
| private IP | create/delete private IP | 10 | 
| all networking resources | update network resource | 10 | 
| Kubernetes cluster | create/update/delete cluster | 10 | 
| Kubernetes node pool | create/update/delete node pool | 5 | 
| Kubernetes node | create/update/delete node | 15 | 
In addition, there is a system limit on the number of concurrent user sessions:
- 
Console: 10 tenancy users 
An authentication error is displayed when the limit is reached. An inactive user session times out after 1 hour.