How to set up only partial collection of metrics

[garysdevil]

Our prometheus pull metrics from k8s, but it can't finish request during 30s.
I think there are too much data and can not return result quickly.
So I want to only collect partial metrics.
Can I set up the configuration?

[iwankgb]

https://github.com/google/cadvisor/blob/master/docs/runtime_options.md#metrics

[garysdevil]

https://github.com/google/cadvisor/blob/master/docs/runtime_options.md#metrics

1. version: v0.39.0
2. images: gcr.io/cadvisor/cadvisor@sha256:45a2a291b772c5a307260afc03d9be551e362b460ebde1a06a290f0736919baa

[pradykaushik]

isn't it supposed to be -disable_metrics? You might have to change the runtime flags set in the cadvisor deployment config.

[garysdevil]

isn't it supposed to be -disable_metrics? You might have to change the runtime flags set in the cadvisor deployment config.

It shows the parameter ”disable_specific_metrics“ in https://github.com/google/cadvisor/blob/release-v0.39/docs/runtime_options.md#metrics, but run failed

[pradykaushik]

Interesting. I just took a look at the latest commit on version 0.39.0 and it in fact removes this flag. This commit was made 4 days ago.

I then look at the documentation for runtime options on version 0.39.0 and -disable_specific_metrics is indeed there. In fact, it seems that it was added to the docs 5 days ago. So, was the flag removed from the codebase a day after it was added to the documentation? I'm not too familiar with the codebase but this feels like a discrepancy. Seems like there's been an attempt to stabilize cAdvisor API in Kubernetes. Probably better to wait for one of the maintainers to reply here.

That said, 0.39.0 is still a pre-release so might be better to switch to a more stable release.

cc @dashpole @iwankgb

[pradykaushik]

@garysdevil maybe these threads will help you get some context on what's happening here.
#2774
#2827

[garysdevil]

@garysdevil maybe these threads will help you get some context on what's happening here.
#2774
#2827

Thanks very much for your help. I am still waiting the progress of maintainers.