Serving: How could I increase number of istio-ingressgateway pod for large traffic.

[arisu1000]

/area autoscale
/area networking

Ask your question here:

I need number of istio-ingressgateway pod more than 1 because large traffic.
But document for install istio for knative, there is following comment.
# Set gateway pods to 1 to sidestep eventual consistency / readiness problems.
https://github.com/knative/docs/blob/master/docs/install/installing-istio.md
Is this issue still valid?
How could I increase number of istio-ingressgateway pod for large traffic.

[nak3]

The comment (Set gateway pods to 1 to sidestep eventual consistency / readiness problems. ) seems not true. Actually the CI is testing with multiple pods as below.

https://github.com/knative/serving/blob/7d87f88c65981e1905429a02bb1942fe4b96d9f7/third_party/istio-1.3.0/istio.yaml#L3129-L3130

https://github.com/knative/serving/blob/7d87f88c65981e1905429a02bb1942fe4b96d9f7/third_party/istio-1.3.0/istio-lean.yaml#L961-L962

cc @ZhiminXiang @tcnghia @JRBANCEL

[ZhiminXiang]

This seems not true now.
@arisu1000 You can follow the example in the above comment to bind HPA to Istio ingress so that it could be autoscaled.

[arisu1000]

@nak3 @ZhiminXiang Thank you for reply.

[vagababov]

Also there is probably relevant documentation on the Istio site.

On Mon, Oct 7, 2019 at 9:07 PM WonChon Jung [e-mail]
wrote:

@nak3 https://github.com/nak3 @ZhiminXiang
https://github.com/ZhiminXiang Thank you for reply.

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[JRBANCEL]

I updated the docs: https://github.com/knative/docs/pull/1871
/close

[knative-prow-robot]

@JRBANCEL: Closing this issue.

In response to this:

I updated the docs: https://github.com/knative/docs/pull/1871
/close

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