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use gcs:// instead of s3:// when the external storage is Google Cloud Storage #16893

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4 changes: 4 additions & 0 deletions external-storage-uri.md
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,10 @@ The following is an example of an Amazon S3 URI for [`IMPORT INTO`](/sql-stateme
s3://external/test.csv?access-key=${access-key}&secret-access-key=${secret-access-key}
```

> **Note:**
>
> Please note that the XML API of GCS is not fully compatible with the `s3://` protocol. If you are using GCS, please use the `gcs://` protocol instead.
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## GCS URI format

- `scheme`: `gcs` or `gs`
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4 changes: 4 additions & 0 deletions ticdc/troubleshoot-ticdc.md
Original file line number Diff line number Diff line change
Expand Up @@ -145,3 +145,7 @@ This error is typically caused by the connection failure between TiCDC and the K
```shell
cdc cli changefeed create --server=http://127.0.0.1:8300 --sink-uri "kafka://127.0.0.1:9092/test?topic=test&protocol=open-protocol&kafka-version=2.4.0"
```

## The `[CDC:ErrS3StorageAPI]external storage api: NotImplemented` error is reported when I use TiCDC and enable Redo. What should I do?

This error might be caused by the external storage not fully supporting the `s3://` protocol. You can replace it with another protocol, such as `gs://`, if you are using GCS.
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