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[Bug 1292339] Re: instance not found trace log can be ignored while get-console-output

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 11 Jun 2014 13:53:14 -0000
Reply-to: Bug 1292339 <1292339@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => juno-1

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https://bugs.launchpad.net/bugs/1292339

Title:
  instance not found trace log can be ignored while get-console-output

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  during we cold-migrating or resizing an instance to another host(or during deleting it), the get_console_output
  method may raise an InstanceNotFound excetpion if the instance is not on the hypervisor, this is an expected error,
  so we should add the InstanceNotFound excetpion to expected exceptions list in the compute manager.

  2014-03-14 11:59:58.884 AUDIT nova.compute.manager [req-6414594a-7fcd-427e-9ed6-1d78f12d40e0 demo demo] [instance: c68b2e95-8299-415a-a837-ff9f7303e6db] Get console output
  2014-03-14 11:59:58.901 ERROR oslo.messaging._executors.base [-] Exception during message handling
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base Traceback (most recent call last):
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/oslo.messaging/oslo/messaging/_executors/base.py", line 36, in _dispatch
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     incoming.reply(self.callback(incoming.ctxt, incoming.message))
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/oslo.messaging/oslo/messaging/rpc/dispatcher.py", line 134, in __call__
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     return self._dispatch(endpoint, method, ctxt, args)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/oslo.messaging/oslo/messaging/rpc/dispatcher.py", line 104, in _dispatch
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     result = getattr(endpoint, method)(ctxt, **new_args)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/oslo.messaging/oslo/messaging/rpc/server.py", line 153, in inner
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     return func(*args, **kwargs)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/exception.py", line 88, in wrapped
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     payload)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/openstack/common/excutils.py", line 68, in __exit__
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     six.reraise(self.type_, self.value, self.tb)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/exception.py", line 71, in wrapped
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     return f(self, context, *args, **kw)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/compute/manager.py", line 293, in decorated_function
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     return function(self, context, *args, **kwargs)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/compute/manager.py", line 3932, in get_console_output
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     output = self.driver.get_console_output(context, instance)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 2268, in get_console_output
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     virt_dom = self._lookup_by_name(instance.name)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 3437, in _lookup_by_name
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base     raise exception.InstanceNotFound(instance_id=instance_name)
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base InstanceNotFound: Instance instance-0000000c could not be found.
  2014-03-14 11:59:58.901 TRACE oslo.messaging._executors.base

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References

[Bug 1292339] [NEW] instance not found trace log can be ignored while get-console-output
From: wangpan, 2014-03-14