When the function is published, there will be a brief service unavailability

[Bryce-huang]

Description
When the function is published, there will be a brief service unavailability
Environmental
Tell us what your cluster environment is like, e.g.

• Operating System Information linux amd64
• kubernetes version v1.24
• OpenFunction version v1.10
• knative 1.10.0

Expected behavior

There should be no problem with the service and 404 not found should not appear.

Actual behavior

Error getting active endpoint: revision.serving.knative.dev "serving-zhkdh-ksvc-5hmbq-20231025110554" not found

HTTP/1.1 404 Not Found
content-type: text/plain; charset=utf-8
x-content-type-options: nosniff
date: Wed, 25 Oct 2023 03:25:55 GMT
content-length: 112
x-envoy-upstream-service-time: 0
vary: Accept-Encoding
server: envoy

To Reproduce
Steps to reproduce the behavior:

1. Create functions with Knative service normally
2. Keep access the function
3. Release a new version of the function

Screenshots
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Additional context
Add any other context about the problem here.

[Bryce-huang]

This may be caused by the out-of-sync between the gateway and the function. When the function cleans up the old serving, there are still old serving requests coming in, resulting in not found.