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OpenStack Juno : How to use Ceilometer
2015/02/07
 
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] After configuring Configure Ceilometer#1, Configure Ceilometer#2, Configure Ceilometer#3, if configuration of them are done normally, the command of follows answers without errors like follows.
[root@dlp ~(keystone)]#
ceilometer meter-list

+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| Name       | Type  | Unit  | Resource ID                          | User ID | Project ID                       |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| image      | gauge | image | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size | gauge | B     | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
[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)]#
Int_Net_ID=`neutron net-list | grep int_net | awk '{ print $2 }'`

[root@dlp ~(keystone)]#
nova boot --flavor 2 --image CentOS7 --security_group default --nic net-id=$Int_Net_ID CentOS_70

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

+---------------------+-------+----------+-----------------------+-----------------+-------------------+
| Name                | Type  | Unit     | Resource ID           | User ID         | Project ID        |
+---------------------+-------+----------+-----------------------+-----------------+-------------------+
| disk.ephemeral.size | gauge | GB       | f2784a7b-9480-4b6a... | a52762888677... | e8f6ac69de5f46... |
| disk.root.size      | gauge | GB       | f2784a7b-9480-4b6a... | a52762888677... | e8f6ac69de5f46... |
| image               | gauge | image    | 4a663fce-97eb-42d3... | None            | e8f6ac69de5f46... |
| image.size          | gauge | B        | 4a663fce-97eb-42d3... | None            | e8f6ac69de5f46... |
| instance            | gauge | instance | f2784a7b-9480-4b6a... | a52762888677... | e8f6ac69de5f46... |
| instance:m1.small   | gauge | instance | f2784a7b-9480-4b6a... | a52762888677... | e8f6ac69de5f46... |
| memory              | gauge | MB       | f2784a7b-9480-4b6a... | a52762888677... | e8f6ac69de5f46... |
| port                | gauge | port     | c46f43f5-705c-4c2e... | 96b4c6f2c60d... | 9e657ab1d2344d... |
| port.create         | delta | port     | c46f43f5-705c-4c2e... | 96b4c6f2c60d... | 9e657ab1d2344d... |
| vcpus               | gauge | vcpu     | f2784a7b-9480-4b6a... | a52762888677... | e8f6ac69de5f46... |
+---------------------+-------+----------+-----------------------+-----------------+-------------------+
[3] Configure to enable monitoring Image Service (Glance).
[root@dlp ~(keystone)]#
vi /etc/glance/glance-api.conf
# line 210: uncomment and change

notification_driver =
messaging
# line 216: uncomment

rpc_backend = 'rabbit'
# line 220,221: uncomment and specify RabbitMQ server

rabbit_host=
10.0.0.30

rabbit_port=5672
# line 223,224: specify RabbitMQ userID and password

rabbit_userid=
guest

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

# confirm the configuration

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

+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| Name       | Type  | Unit  | Resource ID                          | User ID | Project ID                       |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| image      | gauge | image | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size | gauge | B     | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+

# try to add a new image

[root@dlp ~(keystone)]#
glance image-create --name="CentOS70" --is-public=true --disk-format=qcow2 --container-format=bare < /var/kvm/images/centos7.img

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

+--------------+-------+-------+--------------------------------------+---------+----------------------------------+
| Name         | Type  | Unit  | Resource ID                          | User ID | Project ID                       |
+--------------+-------+-------+--------------------------------------+---------+----------------------------------+
| image        | gauge | image | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image        | gauge | image | e093db0c-2195-49a4-bfa2-dd813e6607d6 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size   | gauge | B     | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size   | gauge | B     | e093db0c-2195-49a4-bfa2-dd813e6607d6 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.update | delta | image | e093db0c-2195-49a4-bfa2-dd813e6607d6 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.upload | delta | image | e093db0c-2195-49a4-bfa2-dd813e6607d6 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
+--------------+-------+-------+--------------------------------------+---------+----------------------------------+
# meters are loged for Image Service

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

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

control_exchange=cinder
notification_driver=cinder.openstack.common.notifier.rpc_notifier
# Control Node

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

# Network Node

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

# confirm the configuration

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

+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| Name       | Type  | Unit  | Resource ID                          | User ID | Project ID                       |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| image      | gauge | image | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size | gauge | B     | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
[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  | 4a663fce-97eb-42d3... | None            | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size  | gauge | B      | 4a663fce-97eb-42d3... | None            | e8f6ac69de5f46afa189fcefd99c8a1a |
| volume      | gauge | volume | fc17f001-492b-4752... | a52762888677... | e8f6ac69de5f46afa189fcefd99c8a1a |
| volume.size | gauge | GB     | fc17f001-492b-4752... | a52762888677... | e8f6ac69de5f46afa189fcefd99c8a1a |
+-------------+-------+--------+-----------------------+-----------------+----------------------------------+
# meters are loged for Block Storage Service

[5] Configure to enable monitoring Network Service (Neutron).
# change settings on Control Node, Network Node, Compute Node

[root@dlp ~(keystone)]#
vi /etc/neutron/neutron.conf
# line 428: uncomment and add

notification_driver=
neutron.openstack.common.notifier.rpc_notifier
# Control Node

[root@dlp ~(keystone)]#
systemctl restart neutron-server

# Network Node

[root@network ~]#
systemctl restart neutron-dhcp-agent neutron-l3-agent neutron-metadata-agent neutron-openvswitch-agent

# Compute Node

[root@node01 ~]#
systemctl restart neutron-openvswitch-agent

# confirm the configuration

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

+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| Name       | Type  | Unit  | Resource ID                          | User ID | Project ID                       |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
| image      | gauge | image | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size | gauge | B     | 4a663fce-97eb-42d3-93d6-415e477bc0a4 | None    | e8f6ac69de5f46afa189fcefd99c8a1a |
+------------+-------+-------+--------------------------------------+---------+----------------------------------+
[root@dlp ~(keystone)]#
neutron net-create test_net

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

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

+----------------+-------+---------+-----------------------+------------------+----------------------------------+
| Name           | Type  | Unit    | Resource ID           | User ID          | Project ID                       |
+----------------+-------+---------+-----------------------+------------------+----------------------------------+
| image          | gauge | image   | 4a663fce-97eb-42d3... | None             | e8f6ac69de5f46afa189fcefd99c8a1a |
| image.size     | gauge | B       | 4a663fce-97eb-42d3... | None             | e8f6ac69de5f46afa189fcefd99c8a1a |
| network        | gauge | network | 438080d6-5176-4da4... | a527628886774... | e8f6ac69de5f46afa189fcefd99c8a1a |
| network.create | delta | network | 438080d6-5176-4da4... | a527628886774... | e8f6ac69de5f46afa189fcefd99c8a1a |
+----------------+-------+---------+-----------------------+------------------+----------------------------------+
# meters are loged for Network Service

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