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Re: Leader election in Kubernetes control plane



In 3.7+ "oc get cm openshift-master-controllers -n kube-system -o yaml" you can see the annotation described in that article.

Regards,
Takayoshi

On Wed, 21 Feb 2018 14:37:32 +0900,
"Srinivas Naga Kotaru (skotaru)" <skotaru cisco com> wrote:
> 
> It has just client-ca-file. We have 3 masters in each cluster. not sure how to identify which control manager is active? I usually find which one’s is writing logs by using journalctl atomic-openshift-master-controllers.service. passive one’s don’t write or generate
> any logs.
> 
> -- 
> 
> Srinivas Kotaru
> 
> From: Clayton Coleman <ccoleman redhat com>
> Date: Tuesday, February 20, 2018 at 9:29 PM
> To: Srinivas Naga Kotaru <skotaru cisco com>
> Cc: dev <dev lists openshift redhat com>
> Subject: Re: Leader election in Kubernetes control plane
> 
> We use config maps - check in kube-system for that.
> 
> On Feb 15, 2018, at 2:48 PM, Srinivas Naga Kotaru (skotaru) <skotaru cisco com> wrote:
> 
>     while I was reading below article, I tried to do the same to find out which one is active control plane in Openshift. I could see zero end points in kube-system name space. Am I missing something or not implemented in Openshift?
> 
>     https://blog.heptio.com/leader-election-in-kubernetes-control-plane-heptioprotip-1ed9fb0f3e6d
> 
>     $oc project
>    
>     Using project "kube-system" on server
>    
>     $ oc get ep
>    
>     No resources found.
>    
>     $oc get all
>    
>     No resources found.
> 
>     -- 
>    
>     Srinivas Kotaru
>    
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