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| zigo | mrunge: Hi there! I am surprise to not see cpu.delta from the doc here: https://docs.openstack.org/ceilometer/latest/admin/telemetry-measurements.html | 09:02 |
|---|---|---|
| zigo | when that measure used to be there (at least, it is in older docs). | 09:02 |
| zigo | Was this removed ? If yes, what shall we use for auto-scalling instead of that measure ? | 09:02 |
| mrunge | hi zigo, iirc it was removed during pike | 09:06 |
| mrunge | (transformers were removed during that) | 09:06 |
| mrunge | zigo, what do you use for autoscaling? | 09:06 |
| mrunge | senlin? | 09:07 |
| mrunge | sorry, I am more absent than here today, may take some time to respond | 09:08 |
| zigo | mrunge: We will probably just use heat + aodh, we don't have senlin installed. | 09:15 |
| zigo | mrunge: I'm really not sure what measure to use, which is why I'm asking. | 09:16 |
| zigo | Any advice would be helpful ... | 09:16 |
| mrunge | zigo, ack. got you. | 09:16 |
| mrunge | the recommendation was to use gnocchi and to use aggregation in gnocchi to replace transformers in ceilometer | 09:16 |
| mrunge | I need to dive through our documentation again to get you a working example | 09:17 |
| zigo | mrunge: How does this work? How do I get a delta ? | 09:17 |
| zigo | Oh, ok. | 09:17 |
| mrunge | I saw that most published examples still use what has been around in pike or earlier | 09:17 |
| mrunge | (almost all docs is outdated) | 09:17 |
| zigo | Yeah, and many docs are referencing ceilometer-api, that's very annoying. | 09:17 |
| zigo | It's also very hard to figure out how to add resource-types. | 09:18 |
| mrunge | the effort to pull in ceilometer-api is not helping with the confusion either | 09:18 |
| mrunge | zigo, there is this very recent patch to aodh https://review.opendev.org/c/openstack/aodh/+/786880 | 09:18 |
| zigo | Should one just edit /etc/ceilometer/gnocchi_resources.yaml and run ceilometer-upgrade ? | 09:18 |
| mrunge | yes | 09:19 |
| mrunge | and if you use gnocchi as backend, ceilo-upgrade would then run gnocchi-upgrade in the back | 09:19 |
| mrunge | zigo, there is this updated doc https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html/auto_scaling_for_instances/configuring_auto_scaling_for_compute_instances | 09:21 |
| mrunge | I have to check if we have something comparable upstream. If not, that is certainly a bug we need to fix asap. | 09:22 |
| mrunge | fixes should appear upstream first. (period) | 09:22 |
| zigo | Thanks a lot. | 09:22 |
| mrunge | good luck zigo | 09:23 |
| mrunge | I know I have tried that some time ago and it worked, but not very recently | 09:23 |
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| mrunge | oh, that is documenting train (just in case you wondered), but changes to wallaby should be nearly non-existent | 09:24 |
| zigo | mrunge: We don't have cpu_util in our deployment. Is this something that's missing in the doc, or in the code ? | 09:25 |
| mrunge | cpu_util was removed in pike | 09:25 |
| mrunge | but you'll see cpu_util on all examples on the net. | 09:26 |
| mrunge | the doc was updated to reflect that | 09:26 |
| zigo | mrunge: I'm a bit loss then. What should we use then? Just "cpu" plus your aodh patch ? | 09:26 |
| mrunge | yes, cpu plus aodh | 09:27 |
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| mrunge | okay, found it. https://github.com/openstack/heat-templates/blob/master/hot/autoscaling.yaml is outdated and still links to cpu_util, which was removed years ago | 09:29 |
| zigo | mrunge: In /etc/ceilometer/gnocchi_resources.yaml we have defined this: http://paste.openstack.org/show/804714/ | 09:32 |
| zigo | however, a ceilometer-upgrade does not add the resource type in gnocchi... :/ | 09:32 |
| mrunge | run gnocchi-upgrade as well? | 09:34 |
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| openstackgerrit | Nebi Unlenen proposed openstack/aodh master: Allows calculation of cpu metric values as percentages. https://review.opendev.org/c/openstack/aodh/+/786880 | 11:13 |
| openstackgerrit | Nebi Unlenen proposed openstack/aodh master: Allows calculation of cpu metric values as percentages. https://review.opendev.org/c/openstack/aodh/+/786880 | 11:15 |
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