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Cluster Autoscaler is not initializing

User_WCF8FMar 17 2023 — edited Mar 17 2023

I deployed cluster autoscaler, and it's running, but the logs are showing something failing, do we have any idea why it's happening and how to fix it.

Here I refer this document from oracle:- https://docs.oracle.com/en-us/iaas/Content/ContEng/Tasks/contengusingclusterautoscaler.htm

As shown in document, I created a dynamic group and attached the necessary policies to it.
dynamic group name:-
oke-autoscaler-dyn-grp

Below are the policies I attached

Allow dynamic-group oke-autoscaler-dyn-grp to manage cluster-node-pools in compartment Devtest
Allow dynamic-group oke-autoscaler-dyn-grp to manage instance-family in compartment Devtest
Allow dynamic-group oke-autoscaler-dyn-grp to use subnets in compartment Devtest
Allow dynamic-group oke-autoscaler-dyn-grp to read virtual-network-family in compartment Devtest
Allow dynamic-group oke-autoscaler-dyn-grp to use vnics in compartment Devtest
Allow dynamic-group oke-autoscaler-dyn-grp to inspect compartments in compartment Devtest

Note:- Cluster, network everything are in same compartment.

Here are the status and the logs of Cluster Autocaler

$ kubectl -n kube-system get pod | grep cluster
cluster-autoscaler-f54bc7b7-4vqtf 1/1 Running 0 11m
cluster-autoscaler-f54bc7b7-ctsf2 1/1 Running 0 11m
cluster-autoscaler-f54bc7b7-wdqzg 1/1 Running 0 11m

$ k logs cluster-autoscaler-f54bc7b7-4vqtf -n kube-system | less
I0317 11:22:45.970299 1 main.go:413] Cluster Autoscaler 1.24.0
I0317 11:22:45.998590 1 leaderelection.go:248] attempting to acquire leader lease kube-system/cluster-autoscaler...
I0317 11:22:46.012973 1 leaderelection.go:352] lock is held by cluster-autoscaler-7f5b59b6bd-mjbkt and has not yet expired
I0317 11:22:46.012991 1 leaderelection.go:253] failed to acquire lease kube-system/cluster-autoscaler

Comments

InoL Apr 29 2024

How doc gen treats nulls values?

You have to be more specific. Are your referring to the pre-built Document Generator function?

If so:

When my query return null in some columns

What is the JSON that is generated?

You should always include the element in the JSON, with an empty value. Don't leave it out.

Francois Robert-Oracle Jan 8 2025 — edited on Jan 8 2025

Since September 2024, when a tag has no corresponding value in the JSON data or the value is null, the tag is replaced by an empty string.

See the September Release Notes

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Post Details

Added on Mar 17 2023
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