newly created VM does not get libvirt metrics

[Yan Ning]

Here is the info in monasca agent log on the compute node on which the VM is running.

2015-08-18 19:39:32 UTC | ERROR | collector | monasca_agent.collector.checks.check.libvirt(libvirt.py:186) | instance-000251fb is not known to nova after instance cache update -- skipping this ghost VM.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/214736
Committed: https://git.openstack.org/cgit/stackforge/monasca-agent/commit/?id=2fbc40b918956747f36b24fef6e70bee5f884532
Submitter: Jenkins
Branch: master

commit 2fbc40b918956747f36b24fef6e70bee5f884532
Author: bklei <email address hidden>
Date: Wed Aug 19 12:00:58 2015 -0600

    Fix libvirt plugin bug for newly created VMs

    Once the instance cache file is built, we can never refresh the
    cache because we get a TypeError trying to build the dimensions
    and mis-diagnose the VM as a ghost VM. Simple fix is to move
    the update cache call above where we look for the instance name
    in the cache.

    Change-Id: Iddc229a4e0f150e838a82ace36bc1ba92be17a0e
    Closes-Bug: #1486688

[raghunath (raghunath-d)]

Hi ,

In the latsest monasca code this fix is present.
I have a installation with this fix.But still I can see this errorere

Here is the log:

2016-04-19 00:13:28 MDT | ERROR | collector | monasca_agent.collector.checks.check.libvirt(libvirt.py:451) | instance-00000002 is not known to nova after instance cache update -- skipping this ghost VM.

Code:
insp = inspector.get_hypervisor_inspector()
        for inst in insp._get_connection().listAllDomains():
            # Verify that this instance exists in the cache. Add if necessary.
            inst_name = inst.name()
            if inst_name not in instance_cache:
                instance_cache = self._update_instance_cache()

Could you please revisit this issue once.

Regards
Raghu