grafana/mimir

Bug: some kafkatool commands require `kafka-address` unnecessarily

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#15,917 opened on Jul 1, 2026

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buggood first issue

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Description

What is the bug?

Some kafkatool commands require the user to pass the --kafka-address, but do not contact a remote server at all. This is inconvenient and confusing.

I don't have an exhaustive list of commands. I believe the flag is required for all commands, so we should just look for all commands that don't use it. Here are some:

dump analyse
dump print
dump find-duplicates

How to reproduce it?

$ ./kafkatool dump --file ./dump.json analyse
kafkatool: error: required flag(s) '--kafka-address' not provided, try --help

What did you think would happen?

We should not require the --kafka-address flag when it's not required.

What was your environment?

n/a

Any additional context to share?

No response

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