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v8.5.5 br: pitr restore mode (#21254) #22238

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v8.5.5 br: pitr restore mode (#21254) #22238

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pitr restore mode
Leavrth Jun 26, 2025
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hfxsd Jun 27, 2025
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hfxsd Nov 7, 2025
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2 changes: 2 additions & 0 deletions br/br-pitr-guide.md
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,8 @@ Restore KV Files <--------------------------------------------------------------
*** ["restore log success summary"] [total-take=xxx.xx] [restore-from={TS}] [restore-to={TS}] [total-kv-count=xxx] [total-size=xxx]
```

During data restore, the table mode of the target table is automatically set to `restore`. Tables in `restore` mode do not allow any read or write operations. After data restore is complete, the table mode automatically switches back to `normal`, and you can read and write the table normally. This mechanism ensures task stability and data consistency throughout the restore process.

## Clean up outdated data

As described in the [Usage Overview of TiDB Backup and Restore](/br/br-use-overview.md):
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2 changes: 2 additions & 0 deletions br/br-snapshot-guide.md
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Expand Up @@ -83,6 +83,8 @@ Full Restore <------------------------------------------------------------------
*** ["Full Restore success summary"] *** [total-take=4.344617542s] [total-kv=5] [total-kv-size=327B] [average-speed=75.27B/s] [restore-data-size(after-compressed)=4.813kB] [Size=4813] [BackupTS=435844901803917314]
```

During data restore, the table mode of the target table is automatically set to `restore`. Tables in `restore` mode do not allow any read or write operations. After data restore is complete, the table mode automatically switches back to `normal`, and you can read and write the table normally. This mechanism ensures task stability and data consistency throughout the restore process.

### Restore a database or a table

BR supports restoring partial data of a specified database or table from backup data. This feature allows you to filter out unwanted data and back up only a specific database or table.
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