[branch-2.0](schema change) use data copy to support cooldown data linked schema change #42864
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Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
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clang-tidy review says "All clean, LGTM! 👍" |
DarvenDuan
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clang-tidy review says "All clean, LGTM! 👍" |
DarvenDuan
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run buildall |
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clang-tidy review says "All clean, LGTM! 👍" |
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TeamCity be ut coverage result: |
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run p0 |
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Proposed changes
Issue Number: close #xxx
Currently, link schema change is not supported for cooldown data, it will rollback to directly schema change. So Doris will read from base tablets and write to new tablets. It's time-consuming for reading and writing remote storage data, but Doris didn't make any changes to the data, so use data copy to optimize remote data linked schema change.