br backup txn or br restore txn，error:GetMinResolvedTSByStoresIDs 404 Not Found

[fancy-lee]

tidb-version: 5.3.0
br-version: Self-compiled latest version

When executing the br backup txn or br restore txn commands, a large number of log errors are output:

[2024/05/16 08:46:31.444 +08:00] [ERROR] [client.go:226] ["[pd] request failed with a non-200 status"] [source=tikv-driver] [name=GetMinResolvedTSByStoresIDs] [url=http://idc02-jfs01-tikv-backup-003.hogpu.cc:2379/pd/api/v1/min-resolved-ts] [method=GET] [caller-id=pd-http-client] [status="404 Not Found"] [body="404 page not found\n"] [stack="github.com/tikv/pd/client/http.(*clientInner).doRequest\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:226\ngithub.com/tikv/pd/client/http.(*clientInner).requestWithRetry.func1\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:134\ngithub.com/tikv/pd/client/http.(*clientInner).requestWithRetry\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:144\ngithub.com/tikv/pd/client/http.(*client).request\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:363\ngithub.com/tikv/pd/client/http.(*client).GetMinResolvedTSByStoresIDs\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/interface.go:864\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).getMinResolvedTSByStoresIDs\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:751\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).updateGlobalTxnScopeTSFromPD\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:785\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).updateSafeTS\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:654\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).safeTSUpdater\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:647"]
[2024/05/16 08:46:31.444 +08:00] [ERROR] [client.go:226] ["[pd] request failed with a non-200 status"] [source=tikv-driver] [name=GetMinResolvedTSByStoresIDs] [url=http://idc02-jfs01-tikv-backup-003.hogpu.cc:2379/pd/api/v1/min-resolved-ts] [method=GET] [caller-id=pd-http-client] [status="404 Not Found"] [body="404 page not found\n"] [stack="github.com/tikv/pd/client/http.(*clientInner).doRequest\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:226\ngithub.com/tikv/pd/client/http.(*clientInner).requestWithRetry.func1\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:134\ngithub.com/tikv/pd/client/http.(*clientInner).requestWithRetry\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:144\ngithub.com/tikv/pd/client/http.(*client).request\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/client.go:363\ngithub.com/tikv/pd/client/http.(*client).GetMinResolvedTSByStoresIDs\n\t/home/go21path/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240322051414-fb9e2d561b6e/http/interface.go:864\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).getMinResolvedTSByStoresIDs\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:751\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).updateSafeTS\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:673\ngithub.com/tikv/client-go/v2/tikv.(*KVStore).safeTSUpdater\n\t/home/go21path/pkg/mod/github.com/tikv/client-go/v2@v2.0.8-0.20240322070737-05aaba6cc6f7/tikv/kv.go:647"]

What is the cause? Is there any impact on backup and restore?