hardware pollsters should be configurable to on/off

[Liusheng]

currently, the hardware pollsters only support polling hardware hosts deployed by TripleO, the NodesDiscoveryTripleO will get resource list by Nova list-instance API. but usually, the instances queried by Nova API vms, not TripleO deployed hardware hosts, the TripleO is not a very widely used deployment tool. that will cause many useless Nova API calls and many useless polling processes.
see the following related logs:

./ceilometer-polling.log:2015-12-17 10:05:24.426 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance a87b709c-5c88-4dc5-981a-444de30f2bbc
./ceilometer-polling.log:2015-12-17 10:05:24.426 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance f55757da-a2df-4d9c-b701-e16c717af30c
./ceilometer-polling.log:2015-12-17 10:05:24.427 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance db699dce-2ae2-4891-8974-b77bd64a80b6
./ceilometer-polling.log:2015-12-17 10:05:24.427 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 4e40e4d1-0400-4e1a-935d-d2b7c551febe
./ceilometer-polling.log:2015-12-17 10:05:24.427 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance b9df157a-dfaf-4dd5-b9f5-e8e812b08abf
./ceilometer-polling.log:2015-12-17 10:05:24.428 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance bf75a1c5-156f-4c63-8871-6ff64a34a86e
./ceilometer-polling.log:2015-12-17 10:05:24.428 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 38e34649-48a4-4931-9423-e156e5d3b7ff
./ceilometer-polling.log:2015-12-17 10:05:24.428 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance f03f37c8-df01-4f78-881a-efd64fe8f76f
./ceilometer-polling.log:2015-12-17 10:05:24.429 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 68fda746-6157-4e81-bc9b-2d1dcb68814e
./ceilometer-polling.log:2015-12-17 10:05:24.429 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 1127da90-aa76-4acd-93c6-18717d6738b6
./ceilometer-polling.log:2015-12-17 10:05:24.430 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 3aa0ec80-2eea-4098-b5f3-7fda8426066a
./ceilometer-polling.log:2015-12-17 10:05:24.430 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 6c433872-a261-47d7-8a47-206c5940f974
./ceilometer-polling.log:2015-12-17 10:05:24.430 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance c9e96d6f-c9c4-4407-bc34-0b7be3ddc503
./ceilometer-polling.log:2015-12-17 10:05:24.431 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance b91479ae-20d9-4ba5-8422-f850c5e4c74f
./ceilometer-polling.log:2015-12-17 10:05:24.431 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 17593920-67c2-4d2a-a4d5-b3c3fbcd69d4
./ceilometer-polling.log:2015-12-17 10:05:24.431 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance d09ab612-7f1c-42da-9d7d-d5c4399f084e
./ceilometer-polling.log:2015-12-17 10:05:24.432 22179 ERROR ceilometer.hardware.discovery [req-c5a4ea32-f76e-4915-a847-23fc0881ce06 admin - - - -] Couldn't obtain IP address of instance 59cdfcd0-a27c-407f-b6ff-474a3bd191fd

It is better to add a config option to disable/enable hardware pollsters.

[gordon chung (chungg)]

you could just not include them in pipeline no? if the reason is it's too verbose, i'd prefer this support some sort of general group meter enable/disable functionality and not something hw specific

[Liusheng (liusheng)]

yeah, we can disable the hw polling in pipeline.yaml, but as default, we may don't exclude that in pipeline configuration and we don't deployed with TripleO. Agree with your idea :), will do some tests.

[gordon chung (chungg)]

just curiuos but do tripleo metrics have same name as metric from ipmi agent?

[Liusheng (liusheng)]

see[1][2], they are not same, but they have same prefix "hardware."

[1] https://github.com/openstack/ceilometer/blob/master/ceilometer/hardware/pollsters/data/snmp.yaml
[2] https://github.com/openstack/ceilometer/blob/master/setup.cfg#L114-L125

[Liusheng (liusheng)]

seems fnmatch cannot distinguish these :(

[gordon chung (chungg)]

what if you define list?

https://github.com/openstack/ceilometer/blob/7b3712eb50f510b96b97e440a570dbcfeb77cee5/ceilometer/cmd/polling.py#L71-L75

[gordon chung (chungg)]

closing. please re-open if you have more info