Error Creating the Workspace

[gowthamr-TU]

Hi Team,

Good Day!

Getting the below error message when creating the Databricks Workspace, Moreover databricks is inside the VPC with private subnets.We already have a separate workspace which is using the same private subnet. Now when i try to create a new one, it is giving below error.

Warning: Subnet with ID subnet-03283ffa2b214eeec is already used by another Workspace.
Warning: Subnet with ID subnet-0ae261ef0a4abfe04 is already used by another Workspace.
Error: Network Acl with ID acl-0e9b635f05cdd3f9a restricts inbound traffic for subnet-0ae261ef0a4abfe04.
Error: Network Acl with ID acl-0e9b635f05cdd3f9a restricts inbound traffic for subnet-03283ffa2b214eeec.

[szymon_dybczak]

Hi @gowthamr-TU ,

I don't have much experiance with AWS, but the error message is quite straightforward. Check your inbound rules of the Network ACL (acl-0e9b635f05cdd3f9a) associated with the subnets. It looks like this ACL is blocking inbound traffic that is required by Databricks workspace. 
Databricks requires subnet-level network ACLs to add 0.0.0.0/0 to your allow list.

[gowthamr-TU]

Hi @szymon_dybczak ,

Thanks for the info,But if you see the screenshot, it has been already added. And moreover , do we need to create a separate subnet for each workspace?

[szymon_dybczak]

Could you try, for time of debugging, move this rule priority higher? (set it on top). Also, regarding second question. You don't have to create subnet for each workspace. You can share subnets across workspace as you can see in below documenatation entry:

Configure a customer-managed VPC | Databricks Documentation