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OpenStack Liberty : How to use Ceilometer
2015/11/19
 
How to use the OpenStack Metering Service (Ceilometer).
This example is based on the environment like follows.
                                |
+------------------+            |            +------------------------+
| [ Control Node ] |            |            |    [ Network Node ]    |
|     Keystone     |10.0.0.30   |   10.0.0.50|    DHCP,L3,L2 Agent    |
|      Glance      |------------+------------|     Metadata Agent     |
|     Nova API     |eth0        |        eth0|   Ceilometer Services  |
|  Neutron Server  |            |            |                        |
+------------------+            |            +------------------------+
                            eth0|10.0.0.51
                      +--------------------+
                      |  [ Compute Node ]  |
                      |    Nova Compute    |
                      |      L2 Agent      |
                      | Ceilometer-Compute |
                      +--------------------+

[1] If you configured Ceilometer#1 section, Ceilometer#2 section, Ceilometer#3 section the command below shows some results without errors like follows.
[root@dlp ~(keystone)]#
ceilometer meter-list

+-------------------+------------+----------+------------------------+---------------------+-------------------+
| Name              | Type       | Unit     | Resource ID            | User ID             | Project ID        |
+-------------------+------------+----------+------------------------+---------------------+-------------------+
| cpu               | cumulative | ns       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| image             | gauge      | image    | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| image.size        | gauge      | B        | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| instance          | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| instance:m1.small | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
+-------------------+------------+----------+------------------------+---------------------+-------------------+
[2] It's possible to monitor Compute Service (Nova) now. Try to create and start an instance, and next, input the command meter-list again, then meters are loged like follows.
[root@dlp ~(keystone)]#
neutron net-list

+--------------------------------------+------------+--------------------------------------------------+
| id                                   | name       | subnets                                          |
+--------------------------------------+------------+--------------------------------------------------+
| 1ccd61ea-f82b-42a8-bc2e-03b9c38c62c7 | sharednet1 | 641dcbd3-1eb2-45ab-b8af-4fccf009c226 10.0.0.0/24 |
+--------------------------------------+------------+--------------------------------------------------+

[root@dlp ~(keystone)]#
Int_Net_ID=`neutron net-list | grep sharednet1 | awk '{ print $2 }'`

[root@dlp ~(keystone)]#
nova boot --flavor 2 --image CentOS7 --security_group default --nic net-id=$Int_Net_ID CentOS_7

[root@dlp ~(keystone)]#
ceilometer meter-list

+---------------------+------------+----------+------------------------+---------------------+-------------------+
| Name                | Type       | Unit     | Resource ID            | User ID             | Project ID        |
+---------------------+------------+----------+------------------------+---------------------+-------------------+
| cpu                 | cumulative | ns       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| disk.ephemeral.size | gauge      | GB       | 0fbc0272-285a-4d97-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| disk.ephemeral.size | gauge      | GB       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| disk.root.size      | gauge      | GB       | 0fbc0272-285a-4d97-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| disk.root.size      | gauge      | GB       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| image               | gauge      | image    | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| image.size          | gauge      | B        | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| instance            | gauge      | instance | 0fbc0272-285a-4d97-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| instance            | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| instance:m1.small   | gauge      | instance | 0fbc0272-285a-4d97-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| instance:m1.small   | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| memory              | gauge      | MB       | 0fbc0272-285a-4d97-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| memory              | gauge      | MB       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| port                | gauge      | port     | 188e5409-c6f4-4a7a-... | f13070920e5c477e... | 4e84300cbeeb4a... |
| port.create         | delta      | port     | 188e5409-c6f4-4a7a-... | f13070920e5c477e... | 4e84300cbeeb4a... |
| vcpus               | gauge      | vcpu     | 0fbc0272-285a-4d97-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| vcpus               | gauge      | vcpu     | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
+---------------------+------------+----------+------------------------+---------------------+-------------------+
[3] Configure to enable monitoring Image Service (Glance).
[root@dlp ~(keystone)]#
vi /etc/glance/glance-api.conf
# line 491: uncomment and change

notification_driver =
messagingv2
# line 507: uncomment

rpc_backend = rabbit
# line 1384, 1389: uncomment and specify RabbitMQ server

rabbit_host =
10.0.0.30

rabbit_port = 5672
# line 1401, 1405: RabbitMQ auth info

rabbit_userid =
guest

rabbit_password =
password
[root@dlp ~(keystone)]#
vi /etc/glance/glance-registry.conf
# line 316: uncomment and change

notification_driver =
messagingv2
# line 332: uncomment

rpc_backend = rabbit
# line 1155, 1160: uncomment and specify RabbitMQ server

rabbit_host =
10.0.0.30

rabbit_port = 5672
# line 1172, 1176: RabbitMQ auth info

rabbit_userid =
guest

rabbit_password =
password
[root@dlp ~(keystone)]#
systemctl restart openstack-glance-api openstack-glance-registry

# verify the configuration

[root@dlp ~(keystone)]#
ceilometer meter-list

+-------------------+------------+----------+------------------------+---------------------+-------------------+
| Name              | Type       | Unit     | Resource ID            | User ID             | Project ID        |
+-------------------+------------+----------+------------------------+---------------------+-------------------+
| cpu               | cumulative | ns       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| cpu_util          | gauge      | %        | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| image             | gauge      | image    | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| image.size        | gauge      | B        | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| instance          | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| instance:m1.small | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
+-------------------+------------+----------+------------------------+---------------------+-------------------+

# try to add a new image

[root@dlp ~(keystone)]#
glance image-create --name "CentOS71" --file /var/kvm/images/centos7.img --disk-format qcow2 --container-format bare --visibility public

[root@dlp ~(keystone)]#
ceilometer meter-list

+-------------------+------------+----------+------------------------+---------------------+-------------------+
| Name              | Type       | Unit     | Resource ID            | User ID             | Project ID        |
+-------------------+------------+----------+------------------------+---------------------+-------------------+
| cpu               | cumulative | ns       | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| cpu_util          | gauge      | %        | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| image             | gauge      | image    | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| image             | gauge      | image    | 95b05349-e9cb-4e88-... | None            ... | 98ea1b896d3a48... |
| image.size        | gauge      | B        | 2aab2d1a-e1e8-45c9-... | None            ... | 98ea1b896d3a48... |
| image.size        | gauge      | B        | 95b05349-e9cb-4e88-... | None            ... | 98ea1b896d3a48... |
| image.update      | delta      | image    | 95b05349-e9cb-4e88-... | None            ... | 98ea1b896d3a48... |
| image.upload      | delta      | image    | 95b05349-e9cb-4e88-... | None            ... | 98ea1b896d3a48... |
| instance          | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
| instance:m1.small | gauge      | instance | 2c7a1025-30d6-446a-... | 704a7f5cf84a4797... | 98ea1b896d3a48... |
+-------------------+------------+----------+------------------------+---------------------+-------------------+
# meters are loged for Image Service

[4] Configure to enable monitoring Block Storage (Cinder).
# change settings on both Control Node and Storage Node

[root@dlp ~(keystone)]#
vi /etc/cinder/cinder.conf
# add in the [DEFAULT] section

control_exchange = cinder
notification_driver = messagingv2
# Control Node

[root@dlp ~(keystone)]#
systemctl restart openstack-cinder-api openstack-cinder-scheduler

# Network Node

[root@network ~]#
systemctl restart openstack-cinder-volume

# verify the configuration

[root@dlp ~(keystone)]#
ceilometer meter-list

+------------+-------+-------+------------------------+---------+----------------------+
| Name       | Type  | Unit  | Resource ID            | User ID | Project ID           |
+------------+-------+-------+------------------------+---------+----------------------+
| image      | gauge | image | 2aab2d1a-e1e8-45c9-... | None    | 98ea1b896d3a48438... |
| image.size | gauge | B     | 2aab2d1a-e1e8-45c9-... | None    | 98ea1b896d3a48438... |
+------------+-------+-------+------------------------+---------+----------------------+
[root@dlp ~(keystone)]#
cinder create --display_name disk01 10

[root@dlp ~(keystone)]#
ceilometer meter-list

+---------------------+-------+--------+------------------------+---------------------+--------------------+
| Name                | Type  | Unit   | Resource ID            | User ID             | Project ID         |
+---------------------+-------+--------+------------------------+---------------------+--------------------+
| image               | gauge | image  | 2aab2d1a-e1e8-45c9-... | None                | 98ea1b896d3a484... |
| image.size          | gauge | B      | 2aab2d1a-e1e8-45c9-... | None                | 98ea1b896d3a484... |
| volume              | gauge | volume | 1dadb51f-9acb-4845-... | 704a7f5cf84a4797... | 98ea1b896d3a484... |
| volume.create.end   | delta | volume | 1dadb51f-9acb-4845-... | 704a7f5cf84a4797... | 98ea1b896d3a484... |
| volume.create.start | delta | volume | 1dadb51f-9acb-4845-... | 704a7f5cf84a4797... | 98ea1b896d3a484... |
| volume.size         | gauge | GB     | 1dadb51f-9acb-4845-... | 704a7f5cf84a4797... | 98ea1b896d3a484... |
+---------------------+-------+--------+------------------------+---------------------+--------------------+
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