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| rm_work | Can senlin autoscale using monasca? | 19:14 |
|---|---|---|
| rm_work | We currently use aodh/ceilometer but that solution is broken after Queens when support for basically all useful metrics was dropped for some freaking reason | 19:15 |
| rm_work | but also, do the cpu metrics (rate/util/etc) still work in ceilometer/aodh to your knowledge? they were "deprecated" at some point, but ... still SEEM to be there? | 19:37 |
| rm_work | what do you folks use for that? | 19:37 |
| dtruong | we don't use the cpu metrics | 19:38 |
| dtruong | we use custom metrics exposed by a VM | 19:39 |
| rm_work | ah, k | 19:39 |
| rm_work | yeah i remember your talk from a past summit about that | 19:39 |
| dtruong | And have another service collect the metrics and tell senlin to scale out | 19:39 |
| rm_work | yeah, using some custom hooks | 19:39 |
| rm_work | right? | 19:39 |
| dtruong | but you can essentially achieve the same thing using prometheus and alert manager | 19:39 |
| rm_work | hmm | 19:39 |
| dtruong | yea, but it's basically a URL endpoint in the VM that we query for the metric | 19:40 |
| dtruong | which is what prometheus can also do | 19:40 |
| dtruong | I wrote up how to do senlin + prometheus here: https://medium.com/@dkt26111/auto-scaling-openstack-instances-with-senlin-and-prometheus-46100a9a14e1 | 19:42 |
| dtruong | as far as monasca is concerned, I've never tried it | 19:42 |
| dtruong | it should be possible. the auto-scaling SIG wanted to try it but there was no one to take the lead. | 19:43 |
| rm_work | hmm k | 19:44 |
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