diff --git a/pkg/exchange/retry/order.go b/pkg/exchange/retry/order.go
index 2575f51aaa..0191380b52 100644
--- a/pkg/exchange/retry/order.go
+++ b/pkg/exchange/retry/order.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"strconv"
+	"time"
 
 	"github.com/cenkalti/backoff/v4"
 
@@ -119,6 +120,54 @@ func QueryOpenOrdersUntilSuccessfulLite(
 	return openOrders, err
 }
 
+func QueryClosedOrdersUntilSuccessful(
+	ctx context.Context, ex types.ExchangeTradeHistoryService, symbol string, since, until time.Time, lastOrderID uint64,
+) (closedOrders []types.Order, err error) {
+	var op = func() (err2 error) {
+		closedOrders, err2 = ex.QueryClosedOrders(ctx, symbol, since, until, lastOrderID)
+		return err2
+	}
+
+	err = GeneralBackoff(ctx, op)
+	return closedOrders, err
+}
+
+func QueryClosedOrdersUntilSuccessfulLite(
+	ctx context.Context, ex types.ExchangeTradeHistoryService, symbol string, since, until time.Time, lastOrderID uint64,
+) (closedOrders []types.Order, err error) {
+	var op = func() (err2 error) {
+		closedOrders, err2 = ex.QueryClosedOrders(ctx, symbol, since, until, lastOrderID)
+		return err2
+	}
+
+	err = GeneralLiteBackoff(ctx, op)
+	return closedOrders, err
+}
+
+func QueryOrderTradesUntilSuccessful(
+	ctx context.Context, ex types.ExchangeOrderQueryService, q types.OrderQuery,
+) (trades []types.Trade, err error) {
+	var op = func() (err2 error) {
+		trades, err2 = ex.QueryOrderTrades(ctx, q)
+		return err2
+	}
+
+	err = GeneralBackoff(ctx, op)
+	return trades, err
+}
+
+func QueryOrderTradesUntilSuccessfulLite(
+	ctx context.Context, ex types.ExchangeOrderQueryService, q types.OrderQuery,
+) (trades []types.Trade, err error) {
+	var op = func() (err2 error) {
+		trades, err2 = ex.QueryOrderTrades(ctx, q)
+		return err2
+	}
+
+	err = GeneralLiteBackoff(ctx, op)
+	return trades, err
+}
+
 func QueryAccountUntilSuccessful(
 	ctx context.Context, ex types.ExchangeAccountService,
 ) (account *types.Account, err error) {
diff --git a/pkg/strategy/dca2/active_order_recover.go b/pkg/strategy/dca2/active_order_recover.go
index 08894fd232..cbde64e632 100644
--- a/pkg/strategy/dca2/active_order_recover.go
+++ b/pkg/strategy/dca2/active_order_recover.go
@@ -10,7 +10,7 @@ import (
 )
 
 func (s *Strategy) recoverPeriodically(ctx context.Context) {
-	s.logger.Info("[DCA] monitor and recover periodically")
+	s.logger.Info("monitor and recover periodically")
 	interval := util.MillisecondsJitter(10*time.Minute, 5*60*1000)
 	ticker := time.NewTicker(interval)
 	defer ticker.Stop()
diff --git a/pkg/strategy/dca2/open_position.go b/pkg/strategy/dca2/open_position.go
index db6f0b23ca..d9004e054d 100644
--- a/pkg/strategy/dca2/open_position.go
+++ b/pkg/strategy/dca2/open_position.go
@@ -15,7 +15,7 @@ type cancelOrdersByGroupIDApi interface {
 }
 
 func (s *Strategy) placeOpenPositionOrders(ctx context.Context) error {
-	s.logger.Infof("[DCA] start placing open position orders")
+	s.logger.Infof("start placing open position orders")
 	price, err := getBestPriceUntilSuccess(ctx, s.ExchangeSession.Exchange, s.Symbol)
 	if err != nil {
 		return err
diff --git a/pkg/strategy/dca2/strategy.go b/pkg/strategy/dca2/strategy.go
index 3c3462c176..c335cec2d6 100644
--- a/pkg/strategy/dca2/strategy.go
+++ b/pkg/strategy/dca2/strategy.go
@@ -203,7 +203,7 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 
 	// order executor
 	s.OrderExecutor.TradeCollector().OnPositionUpdate(func(position *types.Position) {
-		s.logger.Infof("[DCA] POSITION UPDATE: %s", s.Position.String())
+		s.logger.Infof("POSITION UPDATE: %s", s.Position.String())
 		bbgo.Sync(ctx, s)
 
 		// update take profit price here
@@ -211,7 +211,7 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 	})
 
 	s.OrderExecutor.ActiveMakerOrders().OnFilled(func(o types.Order) {
-		s.logger.Infof("[DCA] FILLED ORDER: %s", o.String())
+		s.logger.Infof("FILLED ORDER: %s", o.String())
 		openPositionSide := types.SideTypeBuy
 		takeProfitSide := types.SideTypeSell
 
@@ -221,7 +221,7 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 		case takeProfitSide:
 			s.emitNextState(WaitToOpenPosition)
 		default:
-			s.logger.Infof("[DCA] unsupported side (%s) of order: %s", o.Side, o)
+			s.logger.Infof("unsupported side (%s) of order: %s", o.Side, o)
 		}
 
 		// update metrics when filled
@@ -244,7 +244,7 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 	})
 
 	session.UserDataStream.OnAuth(func() {
-		s.logger.Info("[DCA] user data stream authenticated")
+		s.logger.Info("user data stream authenticated")
 		time.AfterFunc(3*time.Second, func() {
 			if isInitialize := s.initializeNextStateC(); !isInitialize {
 
@@ -255,16 +255,29 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 					s.updateState(WaitToOpenPosition)
 				} else {
 					// recover
-					if err := s.recover(ctx); err != nil {
-						s.logger.WithError(err).Error("[DCA] something wrong when state recovering")
-						return
+					maxTry := 3
+					for try := 1; try <= maxTry; try++ {
+						s.logger.Infof("try #%d recover", try)
+
+						err := s.recover(ctx)
+						if err == nil {
+							s.logger.Infof("recover successfully at #%d", try)
+							break
+						}
+
+						s.logger.WithError(err).Warnf("failed to recover at #%d", try)
+
+						if try == 3 {
+							s.logger.Errorf("failed to recover after %d trying, please check it", maxTry)
+							return
+						}
 					}
 				}
 
-				s.logger.Infof("[DCA] state: %d", s.state)
-				s.logger.Infof("[DCA] position %s", s.Position.String())
-				s.logger.Infof("[DCA] profit stats %s", s.ProfitStats.String())
-				s.logger.Infof("[DCA] startTimeOfNextRound %s", s.startTimeOfNextRound)
+				s.logger.Infof("state: %d", s.state)
+				s.logger.Infof("position %s", s.Position.String())
+				s.logger.Infof("profit stats %s", s.ProfitStats.String())
+				s.logger.Infof("startTimeOfNextRound %s", s.startTimeOfNextRound)
 
 				s.updateTakeProfitPrice()
 
@@ -299,17 +312,17 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 func (s *Strategy) updateTakeProfitPrice() {
 	takeProfitRatio := s.TakeProfitRatio
 	s.takeProfitPrice = s.Market.TruncatePrice(s.Position.AverageCost.Mul(fixedpoint.One.Add(takeProfitRatio)))
-	s.logger.Infof("[DCA] cost: %s, ratio: %s, price: %s", s.Position.AverageCost, takeProfitRatio, s.takeProfitPrice)
+	s.logger.Infof("cost: %s, ratio: %s, price: %s", s.Position.AverageCost, takeProfitRatio, s.takeProfitPrice)
 }
 
 func (s *Strategy) Close(ctx context.Context) error {
-	s.logger.Infof("[DCA] closing %s dca2", s.Symbol)
+	s.logger.Infof("closing %s dca2", s.Symbol)
 
 	defer s.EmitClosed()
 
 	err := s.OrderExecutor.GracefulCancel(ctx)
 	if err != nil {
-		s.logger.WithError(err).Errorf("[DCA] there are errors when cancelling orders at close")
+		s.logger.WithError(err).Errorf("there are errors when cancelling orders at close")
 	}
 
 	bbgo.Sync(ctx, s)
@@ -370,10 +383,12 @@ func (s *Strategy) CalculateAndEmitProfit(ctx context.Context) error {
 
 	// TODO: pagination for it
 	// query the orders
-	orders, err := historyService.QueryClosedOrders(ctx, s.Symbol, time.Time{}, time.Time{}, s.ProfitStats.FromOrderID)
+	s.logger.Infof("query %s closed orders from order id #%d", s.Symbol, s.ProfitStats.FromOrderID)
+	orders, err := retry.QueryClosedOrdersUntilSuccessfulLite(ctx, historyService, s.Symbol, time.Time{}, time.Time{}, s.ProfitStats.FromOrderID)
 	if err != nil {
 		return err
 	}
+	s.logger.Infof("there are %d closed orders from order id #%d", len(orders), s.ProfitStats.FromOrderID)
 
 	var rounds []Round
 	var round Round
@@ -398,18 +413,20 @@ func (s *Strategy) CalculateAndEmitProfit(ctx context.Context) error {
 		}
 	}
 
+	s.logger.Infof("there are %d rounds from order id #%d", len(rounds), s.ProfitStats.FromOrderID)
 	for _, round := range rounds {
+		debugRoundOrders(s.logger, "calculate", round)
 		var roundOrders []types.Order = round.OpenPositionOrders
 		roundOrders = append(roundOrders, round.TakeProfitOrder)
 		for _, order := range roundOrders {
-			s.logger.Infof("[DCA] calculate profit stats from order: %s", order.String())
+			s.logger.Infof("calculate profit stats from order: %s", order.String())
 
 			// skip no trade orders
 			if order.ExecutedQuantity.Sign() == 0 {
 				continue
 			}
 
-			trades, err := queryService.QueryOrderTrades(ctx, types.OrderQuery{
+			trades, err := retry.QueryOrderTradesUntilSuccessfulLite(ctx, queryService, types.OrderQuery{
 				Symbol:  order.Symbol,
 				OrderID: strconv.FormatUint(order.OrderID, 10),
 			})
@@ -419,7 +436,7 @@ func (s *Strategy) CalculateAndEmitProfit(ctx context.Context) error {
 			}
 
 			for _, trade := range trades {
-				s.logger.Infof("[DCA] calculate profit stats from trade: %s", trade.String())
+				s.logger.Infof("calculate profit stats from trade: %s", trade.String())
 				s.ProfitStats.AddTrade(trade)
 			}
 		}
@@ -430,7 +447,7 @@ func (s *Strategy) CalculateAndEmitProfit(ctx context.Context) error {
 		// store into persistence
 		bbgo.Sync(ctx, s)
 
-		s.logger.Infof("[DCA] profit stats:\n%s", s.ProfitStats.String())
+		s.logger.Infof("profit stats:\n%s", s.ProfitStats.String())
 
 		// emit profit
 		s.EmitProfit(s.ProfitStats)
diff --git a/pkg/strategy/dca2/take_profit.go b/pkg/strategy/dca2/take_profit.go
index adfa0bb579..8fed7a03ca 100644
--- a/pkg/strategy/dca2/take_profit.go
+++ b/pkg/strategy/dca2/take_profit.go
@@ -8,7 +8,7 @@ import (
 )
 
 func (s *Strategy) placeTakeProfitOrders(ctx context.Context) error {
-	s.logger.Info("[DCA] start placing take profit orders")
+	s.logger.Info("start placing take profit orders")
 	order := generateTakeProfitOrder(s.Market, s.TakeProfitRatio, s.Position, s.OrderGroupID)
 	createdOrders, err := s.OrderExecutor.SubmitOrders(ctx, order)
 	if err != nil {