An Azure service that provides cloud-scale job scheduling and compute management.
Hello @123jhon ,
Thank you for reaching microsoft Q&A platform.
Is your question related to managed compute instance or cluster?
Compute instances come only with one node by default, however compute clusters has a setting to do so. If the question is directly related to azure machine learning computes(AML), then for AML, you need to edit the setting on AML portal. how-to-create-attach-compute-cluster
If you are referring to resize document in azure batch, You can only resize a Pool when its allocation state is steady. When you resize a Pool, the Pool's allocation state changes from steady to resizing, this doesn't affect any running tasks on the existing nodes.
You cannot resize Pools which are configured for automatic scaling. If you try to do this, the Batch service returns an error 409.
Please "Accept as Answer" if any of above helped so that, it can help others in community looking for remediation for the similar issues.