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How to configure Devstack with Ceilometer, Gnocchi and Aodh components?

asked 2018-11-04 11:06:25 -0500

sharleen_go gravatar image

Hi, I've installed ceilometer, gnocchi and aodh components through devstack by adding the following lines in the local.conf described devstack installation guide.

enable_plugin ceilometer https://git.openstack.org/openstack/ceilometer stable/rocky
enable_plugin gnocchi https://github.com/gnocchixyz/gnocchi stable/4.2
enable_plugin aodh https://git.openstack.org/openstack/aodh

The installation finished without any errors; however, the output of gnocchi meter list is nothing. So, I think I'm missing something in the installation. In case this helps, the output of ps -ef | grep 'gnocchi' is as follows:

stack      927     1  0 Nov04 ?        00:00:04 /usr/bin/python /usr/local/bin/gnocchi-statsd -d --config-file /etc/gnocchi/gnocchi.conf
stack      946     1  0 Nov04 ?        00:00:00 gnocchi-metricd: master process [/usr/local/bin/gnocchi-metricd -d --config-file /etc/gnocchi/gnocchi.conf]
stack     2415  2410  0 Nov04 ?        00:00:06 (wsgi:gnocchi)    -k start
stack     2416  2410  0 Nov04 ?        00:00:05 (wsgi:gnocchi)    -k start
stack     2697   946  0 Nov04 ?        00:00:13 gnocchi-metricd: processing worker(0)
stack     2700   946  0 Nov04 ?        00:00:14 gnocchi-metricd: processing worker(1)
stack     2703   946  0 Nov04 ?        00:00:13 gnocchi-metricd: processing worker(2)
stack     2705   946  0 Nov04 ?        00:00:14 gnocchi-metricd: processing worker(3)
stack     2707   946  0 Nov04 ?        00:00:01 gnocchi-metricd: reporting worker(0)
stack     2709   946  0 Nov04 ?        00:00:02 gnocchi-metricd: janitor worker(0)

How do I even verify if gnocchi and ceilometer are configured correctly. Also, what is the proper way of easily installing these 3 components? Any help would be much appreciated. Thanks!

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answered 2018-11-04 17:55:33 -0500

Bernd Bausch gravatar image

updated 2018-11-04 18:25:14 -0500

The command is metric list, not meter list. Your config looks good, except that you may want to add CEILOMETER_BACKEND=gnocchi, but perhaps that is the default anyway.

It looks like, by default, you need to be admin to show metrics. Don't ask my why.

Two days ago, I deployed a stable/rocky Devstack. My local.conf (password setting omitted):

$ cat devstack/local.conf
[[local|localrc]]

enable_service c-bak
enable_service swift

enable_plugin heat https://git.openstack.org/openstack/heat stable/rocky
enable_service h-eng h-api h-api-cfn h-api-cw

CEILOMETER_BACKEND=gnocchi
enable_plugin ceilometer https://git.openstack.org/openstack/ceilometer stable/rocky
enable_plugin aodh https://git.openstack.org/openstack/aodh stable/rocky

As demo, I can't list the metrics. As admin, I can:

stack@rocky:~$ . devstack/openrc demo demo
WARNING: setting legacy OS_TENANT_NAME to support cli tools.
stack@rocky:~$ gnocchi metric list

stack@rocky:~$ . devstack/openrc admin admin
WARNING: setting legacy OS_TENANT_NAME to support cli tools.
stack@rocky:~$ gnocchi metric list
+--------------------------------------+---------------------+--------------------------------------------+-----------+--------------------------------------+
| id                                   | archive_policy/name | name                                       | unit      | resource_id                          |
+--------------------------------------+---------------------+--------------------------------------------+-----------+--------------------------------------+
| 01090368-a664-4677-958f-3599879fba81 | low                 | storage.objects                            | object    | d6fe17c5-c064-425f-b788-d161ece31fad |
| 0b26c78b-fe3f-45a5-aba6-88fd0184c27e | low                 | volume.provider.capacity.total             | GB        | d152bac4-7a69-507a-9934-8a9468522ff6 |
(....)

Note that in order to limit the load, metric list only shows 50 metrics at a time. Use pagination to step through the entire list; the command line arguments are --marker and --limit.

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Thank you so much for your local.conf file. In my initial configuration, I have not enabled swift so I think that's what caused my problem. The metric list is no longer empty. Again, thanks a bunch!

sharleen_go gravatar imagesharleen_go ( 2018-11-04 21:42:40 -0500 )edit
1

Glad I could help, but I wonder why? From my gnocchi.conf:

[storage]
coordination_url = redis://localhost:6379
redis_url = redis://localhost:6379
driver = redis

No trace of Swift.

Bernd Bausch gravatar imageBernd Bausch ( 2018-11-04 22:59:51 -0500 )edit

I'm not sure but I think it's ceilometer which requires swift, rather than gnocchi. In /etc/swift/proxy-server.conf ceilometer was referenced a couple of times. I'm not sure though..

sharleen_go gravatar imagesharleen_go ( 2018-11-05 02:56:16 -0500 )edit

HI, I too was wondering why gnocchi is using redis instead of swift The only reason I could think of is redis is a in-memory database storage system, which implies that it will be lot quicker.

Do anyone have any idea where does the metric files get stored in the local system ?

pm gravatar imagepm ( 2018-12-20 01:07:03 -0500 )edit

Gnocchi uses redis if you configure redis. It’s recommended for storing incoming measures, probably for speed.

I can’t answer the 2nd question. Why not create a new question on this site?

Bernd Bausch gravatar imageBernd Bausch ( 2018-12-20 01:36:17 -0500 )edit
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answered 2018-11-04 16:39:26 -0500

novainfinite gravatar image

You should build an instance and set alarm for it. If you see insufficient data something is wrong but if you see ok or alarm everything is fine.

If you have problem what is your log in ceilometer and aodh.

I suggest you to use mongodb. Configure gnocchi is complicated.i know gnocchi is better and operational But mongodb is so simple.

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Asked: 2018-11-04 10:25:53 -0500

Seen: 585 times

Last updated: Nov 04 '18

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