** Changed in: nova
Status: Triaged => Opinion
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https://bugs.launchpad.net/bugs/1276154
Title:
suspending a paused instance
Status in OpenStack Compute (Nova):
Opinion
Bug description:
Is there a compelling reason why we don't support suspending a paused
instance? At the moment we only allow 'active' and 'rescued' states to
be suspended.
In compute/api:
@check_instance_state(vm_state=[vm_states.ACTIVE, vm_states.RESCUED])
Trying to suspend a paused instance results in:
nova suspend b10f8175-1663-41b2-8533-0b0606f369ff
ERROR: Cannot 'suspend' while instance is in vm_state paused (HTTP 409)
(Request-ID: req-7349d554-ff48-4155-a62b-967f0813c59c)
I haven't tested with other hypervisors, but as far as libvirt/kvm is
concerned it suspends (virsh managedsave) both states ('running',
'paused') and resumes (virsh start) a suspended instance to the pre-
suspended state.
A use-case for this is to be able to quickly pause a bunch of
instances for security reasons and then suspend one of them
conveniently using the API rather than virsh. Taking a suspicious vm
to ‘active’ state so that it can be suspended doesn’t seem like a good
idea.
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