here is the command i use to create alarm and alarm is not triggered nor the state is changed can any one help whats i am doing wrong

ceilometer alarm-threshold-create --name lowcpu --description "trigger if cpu util is < 10 for 2 min" --project-id 1eca34963a8e4063900378595f6119ff --user-id dfbd9f354f5b480683b3cc4c4b9eca6f --alarm-action 'log:///alarm.txt' --ok-action 'log:///alarm.txt' --insufficient-data-action 'log:///alarm.txt' --meter-name cpu-util --period 120 --evaluation-periods 1 --statistic avg --comparison-operator lt --threshold 10.0 --repeat-actions True

and

+---------------------------+---------------------------------------+
| Property                  | Value                                       |
+---------------------------+---------------------------------------+
| alarm_actions          | [u'log:///alarm.txt']                 |
| alarm_id                  | 88b8cb22-4d10-41f6-8329-2b5e0aedceff  |
| comparison_operator| lt                                    |
| description               | trigger if cpu util is < 10 for 2 min |
| enabled                   | True                                  |
| evaluation_periods   | 1                                     |
| exclude_outliers          | False                                 |
| insufficient_data_actions | [u'log:///alarm.txt']                 |
| meter_name                | cpu-util                              |
| name                      | lowcpu                                |
| ok_actions              | [u'log:///alarm.txt']                 |
| period                    | 2                                     |
| project_id              |                                       |
| query                     |                                       |
| repeat_actions       | True                                  |
| state                     | insufficient data                     |
| statistic                 | avg                                   |
| threshold               | 10.0                                  |
| type                      | threshold                             |
| user_id                  | dfbd9f354f5b480683b3cc4c4b9eca6f      |
+---------------------------+---------------------------------------+