linkerd / linkerd/linkerd2

in multi-cluster setup, probe services use the wrong port to check in version 2026.6.3

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bug
Dominant language
Go
Stars
11.5k
Forks
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Avg merge
3d 22h
Merged PRs (30d)
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Description

### What is the issue?

the same issue as https://github.com/linkerd/linkerd2/issues/14451 is happening to version 2026.6.3 as well

### How can it be reproduced?

fix it

### Logs, error output, etc

the same issue as https://github.com/linkerd/linkerd2/issues/14451 is happening to version 2026.6.3

### output of `linkerd check -o short`

the same issue as https://github.com/linkerd/linkerd2/issues/14451 is happening to version 2026.6.3

### Environment

the same issue as https://github.com/linkerd/linkerd2/issues/14451 is happening to version 2026.6.3

### Possible solution

_No response_

### Additional context

_No response_

### Would you like to work on fixing this bug?

None

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the linked issue 14451 and tracing how probe services select their ports in the multi-cluster setup. Reproduce the failure on version 2026.6.3; done when the probes check the intended port successfully in that setup.

Written by the indexing model from the issue text.

Assessment

Tech stack
go, kubernetes
Domain
infrastructure
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
25/100

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