Optimize create instance on AWS #3556
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Related to #3551
This PR optimizes
AWSCompute.create_instance()from 15-30s to 5s by removinginstance.wait_until_running(), which checked instance state with a 15s delay, and implementingupdate_provisioning_data()instead.Also fixes a bug that could lead to orphaned AWS instances – a try/except block around
ec2_resource.create_instances()were also applied to subsequentinstance.reload()andec2_client.cancel_spot_instance_requests()calls without distinction.