Ceilometer missing samples

Solution Verified - Updated -

Issue

  • Ceilometer is configured for polling interval of 60 seconds but some samples are missing:

    [root@os-ceilometer-01 ~(keystone_admin)]# ceilometer sample-list -m cpu -q "resource_id=6808a749-c6dc-462e-8678-a7d409552cfe" -l
    +--------------------------------------+------+------------+---------------+------+---------------------+
    | Resource ID                          | Name | Type       | Volume        | Unit | Timestamp           |
    +--------------------------------------+------+------------+---------------+------+---------------------+
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 42250000000.0 | ns   | 2015-05-13T09:04:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 42160000000.0 | ns   | 2015-05-13T09:02:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 42040000000.0 | ns   | 2015-05-13T09:00:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 42000000000.0 | ns   | 2015-05-13T08:59:15 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41910000000.0 | ns   | 2015-05-13T08:57:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41860000000.0 | ns   | 2015-05-13T08:56:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41770000000.0 | ns   | 2015-05-13T08:54:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41730000000.0 | ns   | 2015-05-13T08:53:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41690000000.0 | ns   | 2015-05-13T08:52:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41600000000.0 | ns   | 2015-05-13T08:50:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41550000000.0 | ns   | 2015-05-13T08:49:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41510000000.0 | ns   | 2015-05-13T08:48:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41460000000.0 | ns   | 2015-05-13T08:47:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41420000000.0 | ns   | 2015-05-13T08:46:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41380000000.0 | ns   | 2015-05-13T08:45:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41290000000.0 | ns   | 2015-05-13T08:43:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41250000000.0 | ns   | 2015-05-13T08:42:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41200000000.0 | ns   | 2015-05-13T08:41:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41160000000.0 | ns   | 2015-05-13T08:40:14 |
    | 6808a749-c6dc-462e-8678-a7d409552cfe | cpu  | cumulative | 41110000000.0 | ns   | 2015-05-13T08:39:14 |
    +--------------------------------------+------+------------+---------------+------+---------------------+
    
    • Note the samples missing according to the column Timestamp

Environment

  • Red Hat Enterprise Linux Openstack Platform 6 (Juno)

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