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branch-4.0: [fix](fe) modify tablet cooldownConfLock to reduce memory #59356 - #59499

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yiguolei merged 1 commit into
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branch-4.0: [fix](fe) modify tablet cooldownConfLock to reduce memory #59356#59499
yiguolei merged 1 commit into
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@github-actionsgithub-actionsBot commented Dec 30, 2025

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Cherry-picked from #59356

@mymeiyiYour Name
[fix](fe) modify tablet cooldownConfLock to reduce memory (#59356)
6843cce
### What problem does this PR solve?
the usage of `cooldownConfLock` is simple, does not need
ReentrantReadWriteLock because it cost too much memory, especially when
a cluster has many tablets.
before:
<img width="1280" height="575" alt="1"
src="https://github.com/user-attachments/assets/df626e1e-84ef-4078-8da7-d857ac960678"
/>
after:
<img width="1280" height="510" alt="2"
src="https://github.com/user-attachments/assets/3fee7407-0743-4d07-9462-a9f0e101765f"
/>
@hello-stephen

hello-stephen commented Dec 30, 2025

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Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

  1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
  2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
  3. What features were added. Why was this function added?
  4. Which code was refactored and why was this part of the code refactored?
  5. Which functions were optimized and what is the difference before and after the optimization?

@hello-stephen

hello-stephen commented Dec 30, 2025

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run buildall

@hello-stephen

hello-stephen commented Dec 30, 2025

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FE UT Coverage Report

Increment line coverage 100.00% (6/6) 🎉
Increment coverage report
Complete coverage report

@yiguolei
yiguolei merged commit 2078d35 into branch-4.0Dec 31, 2025
24 of 27 checks passed
@github-actions
github-actionsBot deleted the auto-pick-59356-branch-4.0 branch December 31, 2025 03:05
ybtsdst pushed a commit to ybtsdst/doris that referenced this pull request Feb 27, 2026
@github-actions@mymeiyibingtao.yin
branch-4.0: [fix](fe) modify tablet cooldownConfLock to reduce memorya…
3e063cf
…pache#59356 (apache#59499)
Cherry-picked from apache#59356
Co-authored-by: meiyi <meiyi@selectdb.com>
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@hello-stephen@yiguolei@dataroaring@mymeiyi