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br, cdc: remove cdclog sink and PiTR #6190

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br, cdc: remove cdclog sink and PiTR #6190

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4 changes: 4 additions & 0 deletions br/use-br-command-line-tool.md
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Expand Up @@ -246,6 +246,10 @@ In the above example, for the incremental backup data, BR records the data chang

### Point-in-time recovery (experimental feature)

> **Warning:**
>
> This feature is experimental and not thoroughly tested. It is highly not recommended to use this feature in the production environment.

Point-in-time recovery (PITR) allows you to restore data to a point in time of your choice.

An example scenario would be to take a full backup every day and take incremental backups every 6 hours and then use TiCDC for PITR. Assume that on one day, the full backup was performed at 00:00 and the first incremental backup was performed at 06:00. If you want to restore the database to the state of 07:16, you can first restore the full backup (taken at 00:00) and the incremental backup (taken at 06:00), and then restore TiCDC logs that fill in the gap between 06:00 and 07:16.
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4 changes: 4 additions & 0 deletions ticdc/manage-ticdc.md
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Expand Up @@ -274,6 +274,10 @@ For more parameters of Pulsar, see [pulsar-client-go ClientOptions](https://godo

#### Configure sink URI with cdclog

> **Warning:**
>
> This feature is experimental and not thoroughly tested. It is highly not recommended to use this feature in the production environment.

The `cdclog` files (files written by TiCDC on the local filesystem or on the Amazon S3-compatible storage) can be used together with Backup & Restore (BR) to provide point-in-time (PITR) recovery. See [Point in Time recovery (experimental feature)](/br/use-br-command-line-tool.md#point-in-time-recovery-experimental-feature) for details.

The following command creates a changefeed that will write cdclog files locally to the `/data/cdc/log` directory.
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