diff --git a/rollup/go.mod b/rollup/go.mod
index 718838b536..0ce2331104 100644
--- a/rollup/go.mod
+++ b/rollup/go.mod
@@ -6,7 +6,6 @@ require (
 	github.com/agiledragon/gomonkey/v2 v2.9.0
 	github.com/gin-gonic/gin v1.9.1
 	github.com/go-resty/resty/v2 v2.7.0
-	github.com/orcaman/concurrent-map/v2 v2.0.1
 	github.com/prometheus/client_golang v1.14.0
 	github.com/scroll-tech/go-ethereum v1.10.14-0.20231130005111-38a3a9c9198c
 	github.com/smartystreets/goconvey v1.8.0
diff --git a/rollup/go.sum b/rollup/go.sum
index 0b20a856f5..a7fbc9a13e 100644
--- a/rollup/go.sum
+++ b/rollup/go.sum
@@ -136,8 +136,6 @@ github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-github.com/orcaman/concurrent-map/v2 v2.0.1 h1:jOJ5Pg2w1oeB6PeDurIYf6k9PQ+aTITr/6lP/L/zp6c=
-github.com/orcaman/concurrent-map/v2 v2.0.1/go.mod h1:9Eq3TG2oBe5FirmYWQfYO5iH1q0Jv47PLaNK++uCdOM=
 github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4=
 github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
diff --git a/rollup/internal/controller/relayer/l1_relayer_test.go b/rollup/internal/controller/relayer/l1_relayer_test.go
index 998639f459..6a0a3447c9 100644
--- a/rollup/internal/controller/relayer/l1_relayer_test.go
+++ b/rollup/internal/controller/relayer/l1_relayer_test.go
@@ -63,10 +63,12 @@ func testL1RelayerGasOracleConfirm(t *testing.T) {
 	l1Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
 		ContextID:    "gas-oracle-1",
 		IsSuccessful: true,
+		SenderType:   types.SenderTypeL1GasOracle,
 	})
 	l1Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
 		ContextID:    "gas-oracle-2",
 		IsSuccessful: false,
+		SenderType:   types.SenderTypeL1GasOracle,
 	})
 
 	// Check the database for the updated status using TryTimes.
diff --git a/rollup/internal/controller/relayer/l2_relayer_test.go b/rollup/internal/controller/relayer/l2_relayer_test.go
index fe7ceeb6cc..de9f282450 100644
--- a/rollup/internal/controller/relayer/l2_relayer_test.go
+++ b/rollup/internal/controller/relayer/l2_relayer_test.go
@@ -164,11 +164,9 @@ func testL2RelayerCommitConfirm(t *testing.T) {
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
-	processingKeys := []string{"committed-1", "committed-2"}
 	isSuccessful := []bool{true, false}
-
 	batchOrm := orm.NewBatch(db)
-	batchHashes := make([]string, len(processingKeys))
+	batchHashes := make([]string, len(isSuccessful))
 	for i := range batchHashes {
 		batchMeta := &types.BatchMeta{
 			StartChunkIndex: 0,
@@ -181,11 +179,12 @@ func testL2RelayerCommitConfirm(t *testing.T) {
 		batchHashes[i] = batch.Hash
 	}
 
-	for i, key := range processingKeys {
+	for i, batchHash := range batchHashes {
 		l2Relayer.commitSender.SendConfirmation(&sender.Confirmation{
-			ContextID:    key,
+			ContextID:    batchHash,
 			IsSuccessful: isSuccessful[i],
 			TxHash:       common.HexToHash("0x123456789abcdef"),
+			SenderType:   types.SenderTypeCommitBatch,
 		})
 	}
 
@@ -219,11 +218,9 @@ func testL2RelayerFinalizeConfirm(t *testing.T) {
 	assert.NoError(t, err)
 
 	// Simulate message confirmations.
-	processingKeys := []string{"finalized-1", "finalized-2"}
 	isSuccessful := []bool{true, false}
-
 	batchOrm := orm.NewBatch(db)
-	batchHashes := make([]string, len(processingKeys))
+	batchHashes := make([]string, len(isSuccessful))
 	for i := range batchHashes {
 		batchMeta := &types.BatchMeta{
 			StartChunkIndex: 0,
@@ -236,11 +233,12 @@ func testL2RelayerFinalizeConfirm(t *testing.T) {
 		batchHashes[i] = batch.Hash
 	}
 
-	for i, key := range processingKeys {
+	for i, batchHash := range batchHashes {
 		l2Relayer.finalizeSender.SendConfirmation(&sender.Confirmation{
-			ContextID:    key,
+			ContextID:    batchHash,
 			IsSuccessful: isSuccessful[i],
 			TxHash:       common.HexToHash("0x123456789abcdef"),
+			SenderType:   types.SenderTypeFinalizeBatch,
 		})
 	}
 
@@ -307,6 +305,7 @@ func testL2RelayerGasOracleConfirm(t *testing.T) {
 		l2Relayer.gasOracleSender.SendConfirmation(&sender.Confirmation{
 			ContextID:    confirmation.batchHash,
 			IsSuccessful: confirmation.isSuccessful,
+			SenderType:   types.SenderTypeL2GasOracle,
 		})
 	}
 	// Check the database for the updated status using TryTimes.
diff --git a/rollup/internal/controller/sender/sender.go b/rollup/internal/controller/sender/sender.go
index a32ab0f27d..be2c7bfac3 100644
--- a/rollup/internal/controller/sender/sender.go
+++ b/rollup/internal/controller/sender/sender.go
@@ -21,6 +21,7 @@ import (
 	"gorm.io/gorm"
 
 	"scroll-tech/common/types"
+
 	"scroll-tech/rollup/internal/config"
 	"scroll-tech/rollup/internal/orm"
 	"scroll-tech/rollup/internal/utils"
diff --git a/rollup/internal/controller/sender/sender_test.go b/rollup/internal/controller/sender/sender_test.go
index e3aaaf018a..fe7360f2de 100644
--- a/rollup/internal/controller/sender/sender_test.go
+++ b/rollup/internal/controller/sender/sender_test.go
@@ -21,6 +21,7 @@ import (
 	"scroll-tech/common/docker"
 	"scroll-tech/common/types"
 	"scroll-tech/database/migrate"
+
 	"scroll-tech/rollup/internal/config"
 )