branch-4.0: [fix](fe) modify tablet cooldownConfLock to reduce memory #59356#59499
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yiguolei merged 1 commit intobranch-4.0from Dec 31, 2025
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branch-4.0: [fix](fe) modify tablet cooldownConfLock to reduce memory #59356#59499yiguolei merged 1 commit intobranch-4.0from
yiguolei merged 1 commit intobranch-4.0from
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### 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" />
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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FE UT Coverage ReportIncrement line coverage |
yiguolei
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Dec 31, 2025
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Cherry-picked from #59356