Kubernetes memory leak on Master node.

Yakov Sobolev

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Sep 14, 2018, 1:42:22 PM9/14/18

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We are running Kubernetes 1.10.2 and we noticed memory leak on the master node. It is known issue? What is the remedy?

We are running several clusters on VMs and confirmed memory leak on all of them. Only out-of-the box components are running on master nodes.

Yakov Sobolev

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Sep 14, 2018, 1:56:45 PM9/14/18

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Our master nodes only run following pods:

calico-node

kube-apiserver

kube-controller-manager

kube-dns

kube-proxy

kube-scheduler

Tim Hockin

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Sep 14, 2018, 5:37:50 PM9/14/18

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Which component?

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Rodrigo Campos

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Sep 14, 2018, 5:43:47 PM9/14/18

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It seems newer versions fixed a leak. Don't know which component is that is leaking for you, though.

But, for example, this is one that have been fixed in a newer version:
https://github.com/kubernetes/kubernetes/pull/65339

See the changelog here for all 1.10.x minors: https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.10.md

If anything seems like your case, I'd try upgrading. But please let us know if it's fixed in released versions or not yet :-)

On Friday, September 14, 2018, Yakov Sobolev <ysob...@ashland.edu> wrote:

We are running Kubernetes 1.10.2 and we noticed memory leak on the master node. It is known issue? What is the remedy?
We are running several clusters on VMs and confirmed memory leak on all of them. Only out-of-the box components are running on master nodes.

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