lighting: increase pd client retry count on error during initialization (#51706)

br/pkg/lightning/backend/local/local.go

@@ -517,7 +517,6 @@ func NewBackend(
 		// If the time too short, we may scatter a region many times, because
 		// the interface `ScatterRegions` may time out.
 		pd.WithCustomTimeoutOption(60*time.Second),
-		pd.WithMaxErrorRetry(3),
 	)
 	if err != nil {
 		return nil, common.NormalizeOrWrapErr(common.ErrCreatePDClient, err)

br/pkg/pdutil/pd.go

@@ -159,7 +159,6 @@ func NewPdController(
 		// If the time too short, we may scatter a region many times, because
 		// the interface `ScatterRegions` may time out.
 		pd.WithCustomTimeoutOption(60*time.Second),
-		pd.WithMaxErrorRetry(3),
 	)
 	if err != nil {
 		log.Error("fail to create pd client", zap.Error(err))

br/pkg/restore/rawkv_client.go

@@ -28,8 +28,7 @@ func NewRawkvClient(ctx context.Context, pdAddrs []string, security config.Secur
 		ctx,
 		pdAddrs,
 		security,
-		pd.WithCustomTimeoutOption(10*time.Second),
-		pd.WithMaxErrorRetry(5))
+		pd.WithCustomTimeoutOption(10*time.Second))
 }
 
 type KVPair struct {