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Update br/br-snapshot-manual.md
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qiancai authored and ti-chi-bot committed Dec 10, 2024
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Expand Up @@ -48,7 +48,7 @@ tiup br backup full \

> **注意:**
>
> - 从 v8.5.0 起,在进行全量备份时,BR 默认不计算表级别的 checksum (`--checksum=false`) 以提升备份性能。
> - 从 v8.5.0 起,在进行全量备份时,BR 工具默认不计算表级别的 checksum (`--checksum=false`) 以提升备份性能。
> - BR 工具已支持自适应 GC,会自动将 `backupTS`(默认是最新的 PD timestamp)注册到 PD 的 `safePoint`,保证 TiDB 的 GC Safe Point 在备份期间不会向前移动,即可避免手动设置 GC。
备份期间终端会显示进度条,效果如下。当进度条达到 100% 时,表示备份完成。
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