Does openshift 3.11 support ipvs proxy mode?

Question

I am setting up a new Openshift system with origin v3.11. The only information provided in the official website is: Disabling Features Using Feature Gates. And in the Service Proxy Mode section of the document it says there are only two proxy-mode supported, so I am not sure if the ipvs mode is removed. I think kuberntes 1.11 has the IPVS as proxy mode supported and the openshift 3.11 is based on k8s 1.11:

Kubelet Version: v1.11.0+d4cacc0 Kube-Proxy Version: v1.11.0+d4cacc0

Does anyone ever tried to enable the IPVS proxy mode on openshift 3.11? I have tried to modify the master-config.yaml and node-config.yaml files. And tried to modify the config map.I added something like:

feature-gates:
    - SupportIPVSProxyMode=true

proxyArguments:
  cluster-cidr:
  - 10.128.0.0/14
  proxy-mode:
  - ipvs
  ipvs-min-sync-period:
  - 5s
  ipvs-sync-period:
  - 5s
  ipvs-scheduler:
  - rr

And then restarted the master and node service. Also I have the ipvsadm installed on all nodes.

But, it seems not to be working.

Nick Nick · Accepted Answer · 2019-03-28T18:05:55

OpenShift only supports two service proxy modes:

iptables
userspace

In general, OpenShift by design only supports a subset of upstream Kubernetes features (though in some cases, such as route objects or the web console, OpenShift has extra features).

These features are cherry picked by Red Hat engineering based on stability, supportabitily, and customer demand.

Does openshift 3.11 support ipvs proxy mode?

1 Answers