pingcap / pingcap/tiup

Warning messages not cleared after tiflash instance scale-in in tiup-cluster display's output

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type/bug
Dominant language
Go
Stars
466
Forks
338
Avg merge
3d 7h
Merged PRs (30d)
8

Description

Bug Report

Please answer these questions before submitting your issue. Thanks!

  1. What did you do?

After scale-in the TiFlash instance, which warning message not cleared.

Before scale-in tiflash
image

After scale-in TiFlash

image

  1. What did you expect to see?

The warning message should be cleared.

And one more thing, the output of TiKV's warning message is confusing, I only have one TiKV instance in 172.19.0.102, but the warning message appears thrice.
image

  1. What did you see instead?

The warning message still appears.

  1. What version of TiUP are you using (tiup --version)?

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 reproducing the TiFlash scale-in scenario and inspect the tiup-cluster display output that reports warnings. Check how warning messages are collected and refreshed; done means the removed TiFlash warning is cleared and a single TiKV instance does not produce the same warning three times.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
cli
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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