[openstack-dev] [ceilometer][nova] extra Ceilometer Samples of the instance gauge

Mike Spreitzer mspreitz at us.ibm.com
Wed Jul 30 18:16:31 UTC 2014


In a normal DevStack install, each Compute instance causes one Ceilometer 
Sample every 10 minutes.  Except, there is an extra one every hour.  And a 
lot of extra ones at the start.  What's going on here?

For example:

$ ceilometer sample-list -m instance -q 
resource=9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab
+--------------------------------------+----------+-------+--------+----------+----------------------------+
| Resource ID                          | Name     | Type  | Volume | Unit  
  | Timestamp                  |
+--------------------------------------+----------+-------+--------+----------+----------------------------+
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T18:09:28        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T18:00:54.009877 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:59:28        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:49:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:39:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:29:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:19:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:09:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T17:00:07.002075 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:59:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:49:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:39:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:29:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:19:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:09:26        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T16:00:20.172520 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T15:59:27        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T15:49:26        |
...
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T05:19:21        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T05:09:21        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T05:00:41.909634 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:59:21        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:49:21        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:39:21        |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:55.049799 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:54.834377 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:51.905095 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:40.962977 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:40.201907 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:40.091348 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:39.858939 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:39.693631 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:39.523561 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:39.421295 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:39.411968 |
| 9108b64e-0e30-45fa-9fdf-ccc2b9cf8dab | instance | gauge | 1.0    | 
instance | 2014-07-30T04:32:38.916604 |
+--------------------------------------+----------+-------+--------+----------+----------------------------+

Thanks,
Mike
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