bug_stats_ceilo

Environement :

ii  ceilometer-agent-central             2015.1.1-0ubuntu2~cloud2         all          ceilometer central agent
ii  ceilometer-agent-notification        2015.1.1-0ubuntu2~cloud2         all          ceilometer notification agent
ii  ceilometer-alarm-evaluator           2015.1.1-0ubuntu2~cloud2         all          Ceilometer alarm evaluator
ii  ceilometer-alarm-notifier            2015.1.1-0ubuntu2~cloud2         all          Ceilometer notification agent
ii  ceilometer-api                       2015.1.1-0ubuntu2~cloud2         all          ceilometer api service
ii  ceilometer-collector                 2015.1.1-0ubuntu2~cloud2         all          ceilometer collector service
ii  ceilometer-common                    2015.1.1-0ubuntu2~cloud2         all          ceilometer common files
ii  python-ceilometer                    2015.1.1-0ubuntu2~cloud2         all          ceilometer python libraries
ii  python-ceilometerclient              1.0.13-0ubuntu1~cloud0           all          Client library for Openstack ceilometer server.

using the patch : https://bugs.launchpad.net/ceilometer/+bug/1489132

1 - Lauching an instance at 14:00 on Flavor_1
2 - Resizing the instance to Flavor_2  at 14:05
3 – Statistics output at 14:34
3a – Output for Flavor_1

ceilometer statistics -m instance -q 'metadata.instance_type=Flavor_1;project_id=my_tenant_id;resource_id=my_resource_id'
+--------+---------------------+---------------------+-----+-----+-----+-----+-------+----------+---------------------+---------------------+
| Period | Period Start        | Period End          | Max | Min | Avg | Sum | Count | Duration | Duration Start      | Duration End        |
+--------+---------------------+---------------------+-----+-----+-----+-----+-------+----------+---------------------+---------------------+
| 0      | 2015-09-04T14:00:17 | 2015-09-04T14:05:18 | 1.0 | 1.0 | 1.0 | 6.0 | 6     | 301.0    | 2015-09-04T14:00:17 | 2015-09-04T14:05:18 |
+--------+---------------------+---------------------+-----+-----+-----+-----+-------+----------+---------------------+---------------------+

301 mean that the instance ran 5min on Flavor_1 before the resize (beetween 14:00 and 14:05, good)

3b – Output for Flavor_2

ceilometer statistics -m instance -q 'metadata.instance_type=Flavor_2; project_id=my_tenant_id; resource_id=my_resource_id'
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+
| Period | Period Start        | Period End          | Max | Min | Avg | Sum  | Count | Duration | Duration Start      | Duration End        |
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+
| 0      | 2015-09-04T14:06:14 | 2015-09-04T14:34:14 | 1.0 | 1.0 | 1.0 | 29.0 | 29    | 1680.0   | 2015-09-04T14:06:14 | 2015-09-04T14:34:14 |
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+

1680.0 mean that the instance ran 28min on Flavor_2 after the resize (beetween 14:05 and 14:34, good)

4 – Resizing back the instance to Flavor_1 at 14:35
5 – Statistics output at 14:37

5a – Output for Flavor_1 (14:37)

ceilometer statistics -m instance -q 'metadata.instance_type=Flavor_1;project_id=my_tenant_id;resource_id=my_resource_id'
+--------+---------------------+---------------------+-----+-----+-----+-----+-------+----------+---------------------+---------------------+
| Period | Period Start        | Period End          | Max | Min | Avg | Sum | Count | Duration | Duration Start      | Duration End        |
+--------+---------------------+---------------------+-----+-----+-----+-----+-------+----------+---------------------+---------------------+
| 0      | 2015-09-04T14:00:17 | 2015-09-04T14:36:18 | 1.0 | 1.0 | 1.0 | 7.0 | 7     | 2161.0   | 2015-09-04T14:00:17 | 2015-09-04T14:36:18 |
+--------+---------------------+---------------------+-----+-----+-----+-----+-------+----------+---------------------+---------------------+

2161.0 mean that the instance ran 36min on Flavor_1, the problem is that the instance  has only run :
From 14:00 to 14:05  = 5min
From 14:35 to 14:37 = 2min

Expected duration result around 420 sec (7min):
Actual duration result 2161sec (37min)

Note that 37min is the total uptime of my Instance since creation, without regarding any flavor

5b – Output for Flavor_2 (14:37)

ceilometer statistics -m instance -q 'metadata.instance_type=Flavor_2; project_id=my_tenant_id; resource_id=my_resource_id'
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+
| Period | Period Start        | Period End          | Max | Min | Avg | Sum  | Count | Duration | Duration Start      | Duration End        |
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+
| 0      | 2015-09-04T14:06:14 | 2015-09-04T14:35:14 | 1.0 | 1.0 | 1.0 | 30.0 | 30    | 1740.0   | 2015-09-04T14:06:14 | 2015-09-04T14:35:14 |
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+

1740.0 mean that the instance ran 29min on Flavor_2 (from 14:05 to 14:34, good)

5c – Output for Instance metric (14:37)

root@telemetry:~# ceilometer statistics -m instance -q 'project_id=my_tenant_id;resource_id=my_resource_id'
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+
| Period | Period Start        | Period End          | Max | Min | Avg | Sum  | Count | Duration | Duration Start      | Duration End        |
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+
| 0      | 2015-09-04T14:00:17 | 2015-09-04T14:37:18 | 1.0 | 1.0 | 1.0 | 38.0 | 38    | 2221.0   | 2015-09-04T14:00:17 | 2015-09-04T14:37:18 |
+--------+---------------------+---------------------+-----+-----+-----+------+-------+----------+---------------------+---------------------+

2221.0 mean that the instance ran 37min from creation (beetween 14:00 and 14:37, good)