OpenStack Caracal : How to use Ceilometer (Nova Compute)2024/04/11 |
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This is how to use OpenStack Telemetry Service (Ceilometer) for Nova Compute service.
This example is based on the environment like follows.
------------+--------------------------+--------------------------+------------
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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 | | Neutron L2/L3 Agent | | Libvirt |
| Memcached Nginx | | Neutron Metadata | | Nova Compute |
| Keystone httpd | | Open vSwitch | | Neutron L2 Agent |
| Glance Nova API | | iSCSI Target | | Open vSwitch |
| Neutron Server | | Cinder Volume | | Ceilometer Compute |
| Neutron Metadata | | httpd Gnocchi | | |
| Cinder API | | Ceilometer Central | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Change settings for Nova Compute service to enable Telemetry data collection like follows. |
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root@node01:~#
vi /etc/nova/nova.conf # add follows into [DEFAULT] section instance_usage_audit = True instance_usage_audit_period = hour # add to last line [notifications] notify_on_state_change = vm_and_task_state [oslo_messaging_notifications] driver = messagingv2 systemctl restart nova-compute |
| [2] | It's some example to display metrics and meters. |
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# start an instance ubuntu@dlp ~(keystone)$ openstack server list +--------------+-------------+---------+--------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------+-------------+---------+--------------+------------+----------+ | e7feb65c- | Ubuntu-2204 | SHUTOFF | private=10.0 | Ubuntu2204 | m1.small | | 1482-48a9- | | | .0.250, 192. | | | | 9d45- | | | 168.100.188 | | | | e74196a5ea92 | | | | | | +--------------+-------------+---------+--------------+------------+----------+ubuntu@dlp ~(keystone)$ openstack server start Ubuntu-2204 # display resources # after doing some operations on instance, metrics data are gotten ubuntu@dlp ~(keystone)$ openstack metric resource list +----------+----------+------------+----------+----------------------+------------+----------+----------------+--------------+---------------+ | id | type | project_id | user_id | original_resource_id | started_at | ended_at | revision_start | revision_end | creator | +----------+----------+------------+----------+----------------------+------------+----------+----------------+--------------+---------------+ | 1a96a3e7 | instance | 2bcdd2fecf | e6828434 | instance-00000001- | 2024-04- | None | 2024-04- | None | 470c2a45c1fc4 | | -c719- | _network | 1d4a8c8faf | 92a44937 | e7feb65c-1482-48a9- | 11T04:22:0 | | 11T04:22:06.61 | | fcf9f921d2a20 | | 549e- | _interfa | 87f1232cf3 | b745ef94 | 9d45-e74196a5ea92- | 6.611445+0 | | 1451+00:00 | | fd7982:c9a28e | | b2bb- | ce | 65 | 5bfacf70 | tapc1f40f45-6f | 0:00 | | | | 6f0f794ccf889 | | 68aa936a | | | | | | | | | c115bb9c2872c | | 369f | | | | | | | | | | | 9702027c | instance | 2bcdd2fecf | e6828434 | e7feb65c-1482-48a9- | 2024-04- | None | 2024-04- | None | 470c2a45c1fc4 | | -b96a- | _disk | 1d4a8c8faf | 92a44937 | 9d45-e74196a5ea92- | 11T04:22:0 | | 11T04:22:06.68 | | fcf9f921d2a20 | | 552a- | | 87f1232cf3 | b745ef94 | vda | 6.686566+0 | | 6572+00:00 | | fd7982:c9a28e | | a3ec- | | 65 | 5bfacf70 | | 0:00 | | | | 6f0f794ccf889 | | 774ca64f | | | | | | | | | c115bb9c2872c | | 422c | | | | | | | | | | | e7feb65c | instance | 2bcdd2fecf | e6828434 | e7feb65c-1482-48a9- | 2024-04- | None | 2024-04- | None | 470c2a45c1fc4 | | -1482- | | 1d4a8c8faf | 92a44937 | 9d45-e74196a5ea92 | 11T04:22:0 | | 11T04:22:06.78 | | fcf9f921d2a20 | | 48a9- | | 87f1232cf3 | b745ef94 | | 6.785588+0 | | 5593+00:00 | | fd7982:c9a28e | | 9d45- | | 65 | 5bfacf70 | | 0:00 | | | | 6f0f794ccf889 | | e74196a5 | | | | | | | | | c115bb9c2872c | | ea92 | | | | | | | | | | +----------+----------+------------+----------+----------------------+------------+----------+----------------+--------------+---------------+ # details of the [instance] resource ubuntu@dlp ~(keystone)$ openstack metric resource show e7feb65c-1482-48a9-9d45-e74196a5ea92 +-----------------------+------------------------------------------------------+ | Field | Value | +-----------------------+------------------------------------------------------+ | created_by_project_id | c9a28e6f0f794ccf889c115bb9c2872c | | created_by_user_id | 470c2a45c1fc4fcf9f921d2a20fd7982 | | creator | 470c2a45c1fc4fcf9f921d2a20fd7982:c9a28e6f0f794ccf889 | | | c115bb9c2872c | | ended_at | None | | id | e7feb65c-1482-48a9-9d45-e74196a5ea92 | | metrics | cpu: 564da281-dd87-4adf-a0a7-fa2d3ef709d1 | | | memory.usage: 22e52f1b-a5f7-4a98-8dd7-d095dd568745 | | original_resource_id | e7feb65c-1482-48a9-9d45-e74196a5ea92 | | project_id | 2bcdd2fecf1d4a8c8faf87f1232cf365 | | revision_end | None | | revision_start | 2024-04-11T04:22:06.785593+00:00 | | started_at | 2024-04-11T04:22:06.785588+00:00 | | type | instance | | user_id | e682843492a44937b745ef945bfacf70 | +-----------------------+------------------------------------------------------+ # CPU ubuntu@dlp ~(keystone)$ openstack metric measures show 564da281-dd87-4adf-a0a7-fa2d3ef709d1 +---------------------------+-------------+----------------+ | timestamp | granularity | value | +---------------------------+-------------+----------------+ | 2024-04-11T13:20:00+09:00 | 300.0 | 214700000000.0 | +---------------------------+-------------+----------------+ # memory usage ubuntu@dlp ~(keystone)$ openstack metric measures show 22e52f1b-a5f7-4a98-8dd7-d095dd568745 +---------------------------+-------------+--------------+ | timestamp | granularity | value | +---------------------------+-------------+--------------+ | 2024-04-11T13:20:00+09:00 | 300.0 | 432.01171875 | +---------------------------+-------------+--------------+ # details of [instance_network_interface] ubuntu@dlp ~(keystone)$ openstack metric resource show 1a96a3e7-c719-549e-b2bb-68aa936a369f +-----------------------+------------------------------------------------------+ | Field | Value | +-----------------------+------------------------------------------------------+ | created_by_project_id | c9a28e6f0f794ccf889c115bb9c2872c | | created_by_user_id | 470c2a45c1fc4fcf9f921d2a20fd7982 | | creator | 470c2a45c1fc4fcf9f921d2a20fd7982:c9a28e6f0f794ccf889 | | | c115bb9c2872c | | ended_at | None | | id | 1a96a3e7-c719-549e-b2bb-68aa936a369f | | metrics | network.incoming.bytes: | | | 4a3a6109-01fa-47fa-9e28-e4fe1ec9a373 | | | network.incoming.packets: | | | 21ff53c9-d04d-4f52-b06c-272d19bc05ac | | | network.outgoing.bytes: | | | 2fcda438-1a3e-41db-8010-cb8e743c1533 | | | network.outgoing.packets: | | | 3028e113-7ec2-4011-8e3b-218b6ec5110e | | original_resource_id | instance-00000001-e7feb65c-1482-48a9-9d45- | | | e74196a5ea92-tapc1f40f45-6f | | project_id | 2bcdd2fecf1d4a8c8faf87f1232cf365 | | revision_end | None | | revision_start | 2024-04-11T04:22:06.611451+00:00 | | started_at | 2024-04-11T04:22:06.611445+00:00 | | type | instance_network_interface | | user_id | e682843492a44937b745ef945bfacf70 | +-----------------------+------------------------------------------------------+ # display network incoming bytes ubuntu@dlp ~(keystone)$ openstack metric measures show 4a3a6109-01fa-47fa-9e28-e4fe1ec9a373 +---------------------------+-------------+-----------+ | timestamp | granularity | value | +---------------------------+-------------+-----------+ | 2024-04-11T13:20:00+09:00 | 300.0 | 1876840.0 | +---------------------------+-------------+-----------+ # display network outgoing bytes ubuntu@dlp ~(keystone)$ openstack metric measures show 2fcda438-1a3e-41db-8010-cb8e743c1533 +---------------------------+-------------+------------+ | timestamp | granularity | value | +---------------------------+-------------+------------+ | 2024-04-11T13:20:00+09:00 | 300.0 | 33855168.0 | +---------------------------+-------------+------------+ |
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