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OpenStack Epoxy : Ceilometer 利用方法 (Cinder)2025/05/29

 

OpenStack Telemetry Service (Ceilometer) の利用方法です。

当例では以下のような環境を例に Ceilometer サービスをインストールしています。

------------+--------------------------+--------------------------+------------
            |                          |                          |
        eth0|10.0.0.30             eth0|10.0.0.50             eth0|10.0.0.51
+-----------+-----------+  +-----------+-----------+  +-----------+-----------+
|   [ dlp.srv.world ]   |  | [ network.srv.world ] |  |  [ node01.srv.world ] |
|     (Control Node)    |  |     (Network Node)    |  |     (Compute Node)    |
|                       |  |                       |  |                       |
|  MariaDB    RabbitMQ  |  |      Open vSwitch     |  |        Libvirt        |
|  Memcached  Nginx     |  |     Neutron Server    |  |      Nova Compute     |
|  Keystone   httpd     |  |      OVN-Northd       |  |      Open vSwitch     |
|  Glance     Nova API  |  |  Nginx  iSCSI Target  |  |   OVN Metadata Agent  |
|  Cinder API           |  |     Cinder Volume     |  |     OVN-Controller    |
|                       |  |     Gnocchi httpd     |  |   Ceilometer Compute  |
|                       |  |   Ceilometer Central  |  |                       |
+-----------------------+  +-----------------------+  +-----------------------+

[1] Block Storage サービスの各種データ収集を有効にするには、Cinder を以下のように設定します。
Cinder 関連サービスが稼働する全ノードで設定変更します。
[root@dlp ~(keystone)]#
vi /etc/cinder/cinder.conf
# 最終行へ追記

[oslo_messaging_notifications]
driver = messagingv2
transport_url = rabbit://openstack:password@dlp.srv.world
[root@dlp ~(keystone)]#
systemctl restart openstack-cinder-api openstack-cinder-scheduler

[2] 任意のユーザーでボリュームを作成した場合に収集されるデータの表示例です。
# リソース一覧

[cent@dlp ~(keystone)]$
openstack metric resource list

+--------------------------------------+----------------------------+----------------------------------
| id                                   | type                       | project_id                       
+--------------------------------------+----------------------------+----------------------------------
| ba6f1ab3-86c9-4966-b1e6-ceabe5353c07 | instance                   | 6cd379304e2447da8514a66bb6cdfda5 
| 8201f251-439c-5a73-b209-e1f6ff43934e | instance_disk              | 6cd379304e2447da8514a66bb6cdfda5 
| 321e0245-bda7-59e5-b7e0-92330c05f2dc | instance_network_interface | 6cd379304e2447da8514a66bb6cdfda5 
+--------------------------------------+----------------------------+----------------------------------

# テストとしてボリューム作成

[cent@dlp ~(keystone)]$
openstack volume create --size 10 disk01

# リソース一覧

[cent@dlp ~(keystone)]$
openstack metric resource list

+--------------------------------------+----------------------------+----------------------------------
| id                                   | type                       | project_id                       
+--------------------------------------+----------------------------+----------------------------------
| ba6f1ab3-86c9-4966-b1e6-ceabe5353c07 | instance                   | 6cd379304e2447da8514a66bb6cdfda5 
| 8201f251-439c-5a73-b209-e1f6ff43934e | instance_disk              | 6cd379304e2447da8514a66bb6cdfda5 
| 321e0245-bda7-59e5-b7e0-92330c05f2dc | instance_network_interface | 6cd379304e2447da8514a66bb6cdfda5 
| 04a254e1-b90f-4d2d-8371-226feb934991 | volume                     | 6cd379304e2447da8514a66bb6cdfda5 
+--------------------------------------+----------------------------+----------------------------------

# [volume] リソース詳細

[cent@dlp ~(keystone)]$
openstack metric resource show 04a254e1-b90f-4d2d-8371-226feb934991

+-----------------------+-------------------------------------------------------------------+
| Field                 | Value                                                             |
+-----------------------+-------------------------------------------------------------------+
| id                    | 04a254e1-b90f-4d2d-8371-226feb934991                              |
| creator               | 2d44dedde9e14263bcb7b18d25570be9:03262019a5e54890be53c2fc96ed98d0 |
| started_at            | 2025-05-29T01:05:51.906196+00:00                                  |
| revision_start        | 2025-05-29T01:06:03.477464+00:00                                  |
| ended_at              | None                                                              |
| user_id               | b6e98dc2822541dd8c4571ac4ed54778                                  |
| project_id            | 6cd379304e2447da8514a66bb6cdfda5                                  |
| original_resource_id  | 04a254e1-b90f-4d2d-8371-226feb934991                              |
| type                  | volume                                                            |
| revision_end          | None                                                              |
| metrics               | volume.size: a9f215bc-f390-47d8-b711-6610e448f760                 |
| created_by_user_id    | 2d44dedde9e14263bcb7b18d25570be9                                  |
| created_by_project_id | 03262019a5e54890be53c2fc96ed98d0                                  |
+-----------------------+-------------------------------------------------------------------+

# ボリューム サイズ データ

[cent@dlp ~(keystone)]$
openstack metric measures show a9f215bc-f390-47d8-b711-6610e448f760

+---------------------------+-------------+-------+
| timestamp                 | granularity | value |
+---------------------------+-------------+-------+
| 2025-05-29T10:05:00+09:00 |       300.0 |  10.0 |
+---------------------------+-------------+-------+
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