Hyper-V Inspector's disk metrics cannot be cached

[Claudiu Belu]

Hyper-V Inspector yields a virt_inspector.Disk(device=device), where device is a dictonary. Ceilometer compute agent will then try to cache the Inspector's metrics into a dictionary, which results in an exception:

18:45:12.516 1188 INFO ceilometer.agent [-] Polling pollster disk.device.read.requests.rate in the context of meter_source
2014-11-23 18:45:12.532 1188 INFO ceilometer.agent [-] Polling pollster disk.read.requests in the context of meter_source
2014-11-23 18:45:13.173 1188 ERROR ceilometer.compute.pollsters.disk [-] Ignoring instance instance-00000016: unhashable type: 'dict'
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk Traceback (most recent call last):
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\ceilometer\compute\pollsters\disk.py", line 116, in get_samples
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk instance_name,
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk File "C:\Program Files (x86)\Cloudbase Solutions\OpenStack\Nova\Python27\lib\site-packages\ceilometer\compute\pollsters\disk.py", line 85, in _populate_cache
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk per_device_read_bytes[disk.device] = info.read_bytes
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk TypeError: unhashable type: 'dict'
2014-11-23 18:45:13.173 1188 TRACE ceilometer.compute.pollsters.disk
2014-11-23 18:45:13.798 1188 ERROR ceilometer.compute.pollsters.disk [-] Ignoring instance instance-00000010: unhashable type: 'dict'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/136849

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/136849
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=a2e11a37aca6d4c0f76376938a147a37b1950ec6
Submitter: Jenkins
Branch: master

commit a2e11a37aca6d4c0f76376938a147a37b1950ec6
Author: Claudiu Belu <email address hidden>
Date: Mon Nov 24 19:57:51 2014 +0200

    Fixes Hyper-V Inspector disk metrics cache issue

    Hyper-V Inspector yields a Disk with the property
    'device' containing a dictionary. This causes an
    exception when the values are cached in a dictionary
    using the said 'device' as a key.

    Closes-Bug: #1395807

    Change-Id: I09b4ec2a37a6f7e6580a059517ab6e606bfc346f

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/juno
Review: https://review.openstack.org/137103

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/137103
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=1324ab751b8d350f9460006581d84f5beda86285
Submitter: Jenkins
Branch: stable/juno

commit 1324ab751b8d350f9460006581d84f5beda86285
Author: Claudiu Belu <email address hidden>
Date: Mon Nov 24 19:57:51 2014 +0200

    Fixes Hyper-V Inspector disk metrics cache issue

    Hyper-V Inspector yields a Disk with the property
    'device' containing a dictionary. This causes an
    exception when the values are cached in a dictionary
    using the said 'device' as a key.

    Closes-Bug: #1395807

    Change-Id: I09b4ec2a37a6f7e6580a059517ab6e606bfc346f
    (cherry picked from commit a2e11a37aca6d4c0f76376938a147a37b1950ec6)