Im running openstack and am trying to get my gnocchi meters to come through more frequently so that I can run a scaling demo without lots of 5 minute lags. In Gnocchi I have changed the Archive-policy to be a custom policy with granularity set to 30 seconds (I've also tried the following using the existing 'medium' policy and it has the same result)
+---------------------+--------------------------------------------------------+
| Field | Value |
+---------------------+--------------------------------------------------------+
| aggregation_methods | std, count, min, max, sum, mean |
| back_window | 0 |
| definition | - points: 120, granularity: 0:00:30, timespan: 1:00:00 |
| name | test |
+---------------------+--------------------------------------------------------+
the cpu_util meter is picking it up correclty
+------------------------------------+-------------------------------------------------------------------+
| Field | Value |
+------------------------------------+-------------------------------------------------------------------+
| archive_policy/aggregation_methods | std, count, min, max, sum, mean |
| archive_policy/back_window | 0 |
| archive_policy/definition | - points: 120, granularity: 0:00:30, timespan: 1:00:00 |
| archive_policy/name | test |
| created_by_project_id | e499d0c2e0fb4a05ac39c3f8c260052b |
| created_by_user_id | 21759a51f3834b9bbae49c3ed17a13e4 |
| creator | 21759a51f3834b9bbae49c3ed17a13e4:e499d0c2e0fb4a05ac39c3f8c260052b |
| id | e5a02f3a-9fbe-4e44-bb91-e1cfe6b86143 |
| name | cpu_util |
| resource/created_by_project_id | e499d0c2e0fb4a05ac39c3f8c260052b |
| resource/created_by_user_id | 21759a51f3834b9bbae49c3ed17a13e4 |
| resource/creator | 21759a51f3834b9bbae49c3ed17a13e4:e499d0c2e0fb4a05ac39c3f8c260052b |
| resource/ended_at | None |
| resource/id | 243b9715-95ba-4532-9728-3e61776e1c29 |
| resource/original_resource_id | 243b9715-95ba-4532-9728-3e61776e1c29 |
| resource/project_id | 43a7db62d5d54c4590e363868fff49e2 |
| resource/revision_end | None |
| resource/revision_start | 2018-08-08T14:05:09.770765+00:00 |
| resource/started_at | 2018-08-08T13:20:45.948842+00:00 |
| resource/type | instance |
| resource/user_id | 4e5015006b304e7ca57edc5419b42be3 |
| unit | % |
+------------------------------------+-------------------------------------------------------------------+
but the measurements are still only coming out every 5 min
gnocchi measures show e5a02f3a-9fbe-4e44-bb91-e1cfe6b86143
+---------------------------+-------------+--------------+
| timestamp | granularity | value |
+---------------------------+-------------+--------------+
| 2018-08-08T13:30:00+00:00 | 30.0 | 0.0400002375 |
| 2018-08-08T13:35:00+00:00 | 30.0 | 0.0366666763 |
| 2018-08-08T13:40:00+00:00 | 30.0 | 0.0366667101 |
| 2018-08-08T13:45:00+00:00 | 30.0 | 0.0399999545 |
| 2018-08-08T13:50:00+00:00 | 30.0 | 0.0366664861 |
| 2018-08-08T13:55:00+00:00 | 30.0 | 0.0400000543 |
| 2018-08-08T14:00:00+00:00 | 30.0 | 0.0366665877 |
+---------------------------+-------------+--------------+
any ideas what I am missing?
I had the same issue. In Gnocchi-backed Ceilometer there is a new configuration file:
polling.yaml. Resources polling interval is being set there.