br: support pitr filter and concurrent restore #20772
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here.
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BornChanger
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Aug 13, 2025
| 3. 表 C (table id = 3) 在 `restored-ts` 前的某个时刻的表名匹配 `--filter` 正则表达式，但在 `restored-ts` 时刻的表名不匹配，则 PITR 不会恢复这张表。 | ||
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| 你可以通过使用库表过滤功能来在线恢复部分数据。在线恢复过程中，注意不要创建与恢复表库表名相同的表，避免因冲突而失败。在该恢复过程中由 PITR 创建的表的状态都会被设置成 `import` 模式，避免在恢复过程中对该表产生读写操作。在恢复结束时，这些表会在 TiDB Domain 内存缓存中更新，并且它们的状态会被设置成 `normal` 模式，从而可以对该表产生读写操作。 |
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不要在这里提模式，因为这个还没有 ga。直接说恢复结束前，对表的读写是不允许的。
BornChanger
reviewed
Aug 13, 2025
| ### 并发恢复 | ||
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| 从 v9.0.0 开始，你可以在同一集群上同时进行多个恢复任务。 |
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增加一个警告，多个恢复任务会大量占用资源，在系统 cpu，io 资源充分的时候，可以考虑跑并行恢复任务。
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