[Bug] [Operator] ShuffleSever cannot be deleted even though there are no more application.

[zhengchenyu]

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• I have searched in the issues and found no similar issues.

Describe the bug

Even though there are no more application, the pod of shuffle server cant not be deleted, will throw there are some apps still running in shuffle server.
The log of webhook show: get last app number of (xx.xx.xx.xx) failed: json: cannot unmarshal string into Go struct field MetricItem.metrics.value of type float32
The problem is that since #1286 , add Summary metrics, may return "NaN", is not string but not number.

Affects Version(s)

master

Uniffle Server Log Output

No response

Uniffle Engine Log Output

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Uniffle Server Configurations

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Uniffle Engine Configurations

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Additional context

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Are you willing to submit PR?

• Yes I am willing to submit a PR!

[rickyma]

To digress a bit, are you running the operator based on the latest version of the code? Have you encountered any other issues during the process? Is Uniffle currently stable on k8s? Because we are going to deploy on K8S too.

[zhengchenyu]

To digress a bit, are you running the operator based on the latest version of the code? Have you encountered any other issues during the process? Is Uniffle currently stable on k8s? Because we are going to deploy on K8S too.

Yes, now I develop on master, almost the latest version.
I think the k8s just start shuffle server, there was no problem deploying on the k8s, the stability problem mainly comes from the shuffle server

[rickyma]

To digress a bit, are you running the operator based on the latest version of the code? Have you encountered any other issues during the process? Is Uniffle currently stable on k8s? Because we are going to deploy on K8S too.

Yes, now I develop on master, almost the latest version. I think the k8s just start shuffle server, there was no problem deploying on the k8s, the stability problem mainly comes from the shuffle server

Sounds good. We will use it soon, maybe in this month.

[jerqi]

To digress a bit, are you running the operator based on the latest version of the code? Have you encountered any other issues during the process? Is Uniffle currently stable on k8s? Because we are going to deploy on K8S too.

Yes, now I develop on master, almost the latest version. I think the k8s just start shuffle server, there was no problem deploying on the k8s, the stability problem mainly comes from the shuffle server

Sounds good. We will use it soon, maybe in this month.

The author of the operator is wangao of Tencent. You can communicate with him.