Info about 'severity' field changes is not displayed via alarm-history call

[Yurii Prokulevych]

Changes to the alarm's severity are not displayed in 'ceilometer alarm-history <alarm_id> ' output:

# ceilometer alarm-history 357ce1eb-839e-4782-8676-11a7b7ef5d18
+------------------+---------------------+----------------------------------------------------+
| Type | Timestamp | Detail |
+------------------+---------------------+----------------------------------------------------+
| state transition | 2015-05-06T09:53:37 | state: insufficient data |
| state transition | 2015-05-06T09:50:37 | state: alarm |
| state transition | 2015-05-06T09:20:36 | state: ok |
| rule change | 2015-05-06T09:14:38 | enabled: True |
| rule change | 2015-05-06T07:48:13 | enabled: False |
| creation | 2015-05-06T05:56:40 | name: ThresholdAlarm-1-moderate |
| | | description: Test Alarm TC474397 moderate |
| | | type: threshold |
| | | rule: alarm_meter_1_moderate >= 3.0 during 3 x 60s |
| | | time_constraints: None |
+------------------+---------------------+----------------------------------------------------+

# ceilometer alarm-threshold-update 357ce1eb-839e-4782-8676-11a7b7ef5d18 --severity low >/dev/null 2>&1

# ceilometer alarm-history 357ce1eb-839e-4782-8676-11a7b7ef5d18
+------------------+----------------------------+----------------------------------------------------+
| Type | Timestamp | Detail |
+------------------+----------------------------+----------------------------------------------------+
| rule change | 2015-05-06T11:57:32.345000 | |
| state transition | 2015-05-06T09:53:37.125000 | state: insufficient data |
| state transition | 2015-05-06T09:50:37.021000 | state: alarm |
| state transition | 2015-05-06T09:20:36.895000 | state: ok |
| rule change | 2015-05-06T09:14:38.644000 | enabled: True |
| rule change | 2015-05-06T07:48:13.844000 | enabled: False |
| creation | 2015-05-06T05:56:40.562000 | name: ThresholdAlarm-1-moderate |
| | | description: Test Alarm TC474397 moderate |
| | | type: threshold |
| | | rule: alarm_meter_1_moderate >= 3.0 during 3 x 60s |
| | | time_constraints: None |
+------------------+----------------------------+----------------------------------------------------+

# ceilometer alarm-threshold-update 357ce1eb-839e-4782-8676-11a7b7ef5d18 --severity critical >/dev/null 2>&1

# ceilometer alarm-history 357ce1eb-839e-4782-8676-11a7b7ef5d18
+------------------+----------------------------+----------------------------------------------------+
| Type | Timestamp | Detail |
+------------------+----------------------------+----------------------------------------------------+
| rule change | 2015-05-06T11:58:47.653000 | |
| rule change | 2015-05-06T11:57:32.345000 | |
| state transition | 2015-05-06T09:53:37.125000 | state: insufficient data |
| state transition | 2015-05-06T09:50:37.021000 | state: alarm |
| state transition | 2015-05-06T09:20:36.895000 | state: ok |
| rule change | 2015-05-06T09:14:38.644000 | enabled: True |
| rule change | 2015-05-06T07:48:13.844000 | enabled: False |
| creation | 2015-05-06T05:56:40.562000 | name: ThresholdAlarm-1-moderate |
| | | description: Test Alarm TC474397 moderate |
| | | type: threshold |
| | | rule: alarm_meter_1_moderate >= 3.0 during 3 x 60s |
| | | time_constraints: None |
+------------------+----------------------------+----------------------------------------------------+

[Yurii Prokulevych (yprokule)]

Ceilometer versions:
rpm -qa | grep ceilo
openstack-ceilometer-common-2015.1.0-1.el7.noarch
openstack-ceilometer-alarm-2015.1.0-1.el7.noarch
openstack-ceilometer-compute-2015.1.0-1.el7.noarch
openstack-ceilometer-collector-2015.1.0-1.el7.noarch
openstack-ceilometer-notification-2015.1.0-1.el7.noarch
openstack-ceilometer-central-2015.1.0-1.el7.noarch
python-ceilometerclient-1.0.13-1.el7.noarch
openstack-ceilometer-api-2015.1.0-1.el7.noarch
python-ceilometer-2015.1.0-1.el7.noarch

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/180507

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/180507
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=ecd4ee6566bf718489e85026d26f12ada1d62929
Submitter: Jenkins
Branch: master

commit ecd4ee6566bf718489e85026d26f12ada1d62929
Author: Mehdi Abaakouk <email address hidden>
Date: Wed May 6 14:19:06 2015 +0200

    api: record severity change in alarm history

    A useless change was done on the original alarm object when
    we update the alarm. That have the side effect to hide the change
    from the history.

    This change fixes that

    Change-Id: I9b3030dacf0da83bc0570ed4a6f9d460f178e2be
    Closes-bug: #1452264

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/192568

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/192568
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=023cfd11f385dbbc3800622ea45a0111d304f8d6
Submitter: Jenkins
Branch: stable/kilo

commit 023cfd11f385dbbc3800622ea45a0111d304f8d6
Author: Mehdi Abaakouk <email address hidden>
Date: Wed May 6 14:19:06 2015 +0200

    api: record severity change in alarm history

    A useless change was done on the original alarm object when
    we update the alarm. That have the side effect to hide the change
    from the history.

    This change fixes that

    Change-Id: I9b3030dacf0da83bc0570ed4a6f9d460f178e2be
    Closes-bug: #1452264
    (cherry picked from commit ecd4ee6566bf718489e85026d26f12ada1d62929)