Instance is sometimes shutdown without any operation and report the message "Instance shutdown by itself. Calling the stop API"

[zhoudonshu]

my environmont:
  centos5.4 + libvirt + xen

because nova.log show:
  Instance shutdown by itself. Calling the stop API

thus, i think that nova stop my instance by itself when vm_state is difference from power_state ,however this situation is often occurred in the night and nobody login in this instance or run additional program

[Michael Still (mikal)]

What version of OpenStack are you running?

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/17449

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/17449
Committed: http://github.com/openstack/nova/commit/95e7770399a74e99f3dcad777186ee4f58e4e206
Submitter: Jenkins
Branch: master

commit 95e7770399a74e99f3dcad777186ee4f58e4e206
Author: zhoudongshu <email address hidden>
Date: Tue Dec 4 18:04:29 2012 +0800

    Avoid vm instance shutdown when power state is NOSTATE

    Occasionally when nova uses libvirt lib to query hypervisor
    xen the instance state of vm_power_state may end up
    with a NOSTATE value. Existing code shuts down the instance
    when we hit this state. Remove the check for NOSTATE
    to avoid shutting down the instance.

    Fixes LP #1085771.

    Change-Id: I0025f6800b6ca9cd3d7c7e6119b9a819571bd13c

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/21516

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/21516
Committed: http://github.com/openstack/nova/commit/ad101ce5bac1af60adeeb5be12ec30fbd00a624e
Submitter: Jenkins
Branch: master

commit ad101ce5bac1af60adeeb5be12ec30fbd00a624e
Author: Pádraig Brady <email address hidden>
Date: Fri Feb 8 13:45:14 2013 +0000

    fix VM power state to be NOSTATE when instance not found

    * nova/compute/manager.py (_sync_power_states): Revert what looks
    like an inadvertent change that was part of commit 95e77703.
    Also log the condition.

    Fixes bug: 1085771
    Change-Id: Ic6eeb9207323f05b93f0b613bd1bddd681ad8ce5

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/folsom
Review: https://review.openstack.org/22563

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/22563
Committed: http://github.com/openstack/nova/commit/cb843f7a948122c55fbe244458bb44b2f68eedb9
Submitter: Jenkins
Branch: stable/folsom

commit cb843f7a948122c55fbe244458bb44b2f68eedb9
Author: Pádraig Brady <email address hidden>
Date: Thu Feb 21 16:17:13 2013 +0000

    Avoid vm instance shutdown when power state is NOSTATE

    * nova/compute/manager.py (_sync_power_states): Log the condition
    where we can retrieve the state from the hyperviser, rather than
    stopping the VM.

    Related grizzly commits are 95e77703 and ad101ce5

    Fixes bug: 1085771
    Change-Id: I5fb9fdc6bcde729c00c4931960ed0de3b8fa189d