Kubernetes: Issue: Errors: Request failed with 500 , {"error":"Unknown suffix: u"}

[hsparmar1]

Expected Behavior

The user should be able to click on the the Kubernetes tab in the Component Page and have the Your Cluster display the Kubernetes information about the Component: Deployment, Ingress, and Service, without seeing the following error:

"There was a problem retrieving some Kubernetes resources for the entity: some-service-in-k8s. This could mean that the Error Reporting card is not completely accurate." Errors: Request failed with 500 , {"error":"Unknown suffix: u"}

Actual Behavior

The Kubernetes tab in the Component Page intermittently displays the following error:

"There was a problem retrieving some Kubernetes resources for the entity: some-service-in-k8s. This could mean that the Error Reporting card is not completely accurate." Errors: Request failed with 500 , {"error":"Unknown suffix: u"}

This error sometimes occurs right after entering the Kubernetes Tab, in which case, nothing else displays on the page except this error. After 30 seconds or so the error disappears, and the Kubernetes Tab will display the correct Your Cluster display with data from Kubernetes about the Component.

Other times, the error will not display for 30 seconds or so. After which time, the error will display and remain on the Kubernetes tab along with all the Kubernetes data: Deployment, Ingress, and Service, about the Component.

Steps to Reproduce

1. Sign into Backstage Home
2. Select Component that has a Kubernetes Deployment object, and the Backstage Annotation to Kubernetes Label mapping.
3. Navigate to Kubernetes Tab. The error may appear right away; or, it may appear after 30 seconds or so.

Context

This error is mostly a nuisance, but the team here would like to have it investigated just in case it is responsible for more serious issues.

Your Environment

• Browser Information: Chrome Version 98.0.4758.102 (Official Build) (x86_64)

• Output of yarn backstage-cli info:

yarn run v1.22.1
$ /Users/Harjeet.S.Parmar/Development/qsid-dev/backstage/backstage-plugins-devel/node_modules/.bin/backstage-cli info
OS:   Darwin 21.2.0 - darwin/x64
node: v14.19.0
yarn: 1.22.1
cli:  0.13.2 (local)

Dependencies:
  @backstage/core-plugin-api 0.4.1
✨  Done in 2.93s.

• Backstage: Deployed on EKS single Pod

[freben]

@mclarke47 Is this something that rings a bell?

[Rugvip]

Hi! I wanna check if this is something that is still happening if you upgrade to the most recent release?

[mclarke47]

If this is still happening it might be fixed by upgrading the JS K8S lib kubernetes-client/javascript#757

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[benjdlambert]

Closing as should be fixed in the merged PR, let's test and feel free to re-open if still an issue after release.