OpenStack Caracal : How to use Ceilometer (Nova Compute)2024/05/23 |
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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.
------------+--------------------------+--------------------------+------------
| | |
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 | +--------------+-------------+---------+--------------+------------+----------+ | 7fbc24c1- | Ubuntu-2404 | SHUTOFF | private=10.0 | Ubuntu2404 | m1.small | | c0d1-43d6- | | | .0.208, 192. | | | | 87aa- | | | 168.100.130 | | | | 68df83597b57 | | | | | | +--------------+-------------+---------+--------------+------------+----------+ubuntu@dlp ~(keystone)$ openstack server start Ubuntu-2404 # 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 | +----------+----------+------------+----------+----------------------+------------+----------+----------------+--------------+---------------+ | f69d1834 | instance | 18ede7365b | b9371d01 | 7fbc24c1-c0d1-43d6- | 2024-05- | None | 2024-05- | None | 65be1bdf8db24 | | -9dc1- | _disk | dc430093e8 | 5e0d43dc | 87aa-68df83597b57- | 23T01:17:1 | | 23T01:17:17.29 | | 41e8670bf362e | | 544c- | | fd4a90f773 | a74f2916 | vda | 7.291969+0 | | 1974+00:00 | | 844176:ab9749 | | 82df- | | 69 | 1448ffd2 | | 0:00 | | | | e59bdb48e4807 | | 82a2b49c | | | | | | | | | a18abb83c9f99 | | ad84 | | | | | | | | | | | a9867d26 | instance | 18ede7365b | b9371d01 | instance-00000002- | 2024-05- | None | 2024-05- | None | 65be1bdf8db24 | | -81a4- | _network | dc430093e8 | 5e0d43dc | 7fbc24c1-c0d1-43d6- | 23T01:17:1 | | 23T01:17:17.41 | | 41e8670bf362e | | 5eca- | _interfa | fd4a90f773 | a74f2916 | 87aa-68df83597b57- | 7.413053+0 | | 3059+00:00 | | 844176:ab9749 | | b871- | ce | 69 | 1448ffd2 | tape810be8a-45 | 0:00 | | | | e59bdb48e4807 | | f50efe37 | | | | | | | | | a18abb83c9f99 | | 4561 | | | | | | | | | | | 7fbc24c1 | instance | 18ede7365b | b9371d01 | 7fbc24c1-c0d1-43d6- | 2024-05- | None | 2024-05- | None | 65be1bdf8db24 | | -c0d1- | | dc430093e8 | 5e0d43dc | 87aa-68df83597b57 | 23T01:17:1 | | 23T01:17:17.42 | | 41e8670bf362e | | 43d6- | | fd4a90f773 | a74f2916 | | 7.423541+0 | | 3545+00:00 | | 844176:ab9749 | | 87aa- | | 69 | 1448ffd2 | | 0:00 | | | | e59bdb48e4807 | | 68df8359 | | | | | | | | | a18abb83c9f99 | | 7b57 | | | | | | | | | | +----------+----------+------------+----------+----------------------+------------+----------+----------------+--------------+---------------+ # details of the [instance] resource ubuntu@dlp ~(keystone)$ openstack metric resource show 7fbc24c1-c0d1-43d6-87aa-68df83597b57 +-----------------------+------------------------------------------------------+ | Field | Value | +-----------------------+------------------------------------------------------+ | created_by_project_id | ab9749e59bdb48e4807a18abb83c9f99 | | created_by_user_id | 65be1bdf8db2441e8670bf362e844176 | | creator | 65be1bdf8db2441e8670bf362e844176:ab9749e59bdb48e4807 | | | a18abb83c9f99 | | ended_at | None | | id | 7fbc24c1-c0d1-43d6-87aa-68df83597b57 | | metrics | cpu: 45b3c552-6fe4-4caa-9ae6-1c049aee6d50 | | | memory.usage: f7731e61-40da-4db7-b625-f35e0482ac6f | | original_resource_id | 7fbc24c1-c0d1-43d6-87aa-68df83597b57 | | project_id | 18ede7365bdc430093e8fd4a90f77369 | | revision_end | None | | revision_start | 2024-05-23T01:17:17.423545+00:00 | | started_at | 2024-05-23T01:17:17.423541+00:00 | | type | instance | | user_id | b9371d015e0d43dca74f29161448ffd2 | +-----------------------+------------------------------------------------------+ # CPU ubuntu@dlp ~(keystone)$ openstack metric measures show 45b3c552-6fe4-4caa-9ae6-1c049aee6d50 +---------------------------+-------------+----------------+ | timestamp | granularity | value | +---------------------------+-------------+----------------+ | 2024-05-23T01:15:00+00:00 | 300.0 | 137680000000.0 | +---------------------------+-------------+----------------+ # memory usage ubuntu@dlp ~(keystone)$ openstack metric measures show f7731e61-40da-4db7-b625-f35e0482ac6f +---------------------------+-------------+-----------+ | timestamp | granularity | value | +---------------------------+-------------+-----------+ | 2024-05-23T01:15:00+00:00 | 300.0 | 421.53125 | +---------------------------+-------------+-----------+ # details of [instance_network_interface] ubuntu@dlp ~(keystone)$ openstack metric resource show a9867d26-81a4-5eca-b871-f50efe374561 +-----------------------+------------------------------------------------------+ | Field | Value | +-----------------------+------------------------------------------------------+ | created_by_project_id | ab9749e59bdb48e4807a18abb83c9f99 | | created_by_user_id | 65be1bdf8db2441e8670bf362e844176 | | creator | 65be1bdf8db2441e8670bf362e844176:ab9749e59bdb48e4807 | | | a18abb83c9f99 | | ended_at | None | | id | a9867d26-81a4-5eca-b871-f50efe374561 | | metrics | network.incoming.bytes: | | | 2e4c3906-a0af-4306-b987-89649b97dd19 | | | network.incoming.packets: | | | ed807b11-8a7d-47c8-bf93-f9a13f230b97 | | | network.outgoing.bytes: | | | 4c9d2c1c-129d-49aa-8efb-918ce2008ca8 | | | network.outgoing.packets: | | | 32fcee47-4988-438e-8e10-fcc770abe1e3 | | original_resource_id | instance-00000002-7fbc24c1-c0d1-43d6-87aa- | | | 68df83597b57-tape810be8a-45 | | project_id | 18ede7365bdc430093e8fd4a90f77369 | | revision_end | None | | revision_start | 2024-05-23T01:17:17.413059+00:00 | | started_at | 2024-05-23T01:17:17.413053+00:00 | | type | instance_network_interface | | user_id | b9371d015e0d43dca74f29161448ffd2 | +-----------------------+------------------------------------------------------+ # display network incoming bytes ubuntu@dlp ~(keystone)$ openstack metric measures show 2e4c3906-a0af-4306-b987-89649b97dd19 +---------------------------+-------------+------------+ | timestamp | granularity | value | +---------------------------+-------------+------------+ | 2024-05-23T01:15:00+00:00 | 300.0 | 32412049.0 | +---------------------------+-------------+------------+ # display network outgoing bytes ubuntu@dlp ~(keystone)$ openstack metric measures show 4c9d2c1c-129d-49aa-8efb-918ce2008ca8 +---------------------------+-------------+----------+ | timestamp | granularity | value | +---------------------------+-------------+----------+ | 2024-05-23T01:15:00+00:00 | 300.0 | 590113.0 | +---------------------------+-------------+----------+ |
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