diff --git a/pkg/cmd/server/server_test.go b/pkg/cmd/server/server_test.go
index f00af0e5bdc..3d1383b040c 100644
--- a/pkg/cmd/server/server_test.go
+++ b/pkg/cmd/server/server_test.go
@@ -168,7 +168,7 @@ func TestParseCfg(t *testing.T) {
 			KeyPath:       "cc",
 			CertAllowedCN: []string{"dd", "ee"},
 		},
-		PerTableMemoryQuota: 10 * 1024 * 1024, // 10M
+		PerTableMemoryQuota: config.DefaultTableMemoryQuota,
 		KVClient: &config.KVClientConfig{
 			WorkerConcurrent:    8,
 			WorkerPoolSize:      0,
@@ -314,7 +314,7 @@ server-worker-pool-size = 16
 			SortDir:                config.DefaultSortDir,
 		},
 		Security:            &config.SecurityConfig{},
-		PerTableMemoryQuota: 10 * 1024 * 1024, // 10M
+		PerTableMemoryQuota: config.DefaultTableMemoryQuota,
 		KVClient: &config.KVClientConfig{
 			WorkerConcurrent:    8,
 			WorkerPoolSize:      0,
@@ -455,7 +455,7 @@ cert-allowed-cn = ["dd","ee"]
 			KeyPath:       "cc",
 			CertAllowedCN: []string{"dd", "ee"},
 		},
-		PerTableMemoryQuota: 10 * 1024 * 1024, // 10M
+		PerTableMemoryQuota: config.DefaultTableMemoryQuota,
 		KVClient: &config.KVClientConfig{
 			WorkerConcurrent:    8,
 			WorkerPoolSize:      0,
diff --git a/pkg/config/server_config.go b/pkg/config/server_config.go
index 7897a1fba8f..ea9cfef5299 100644
--- a/pkg/config/server_config.go
+++ b/pkg/config/server_config.go
@@ -37,6 +37,9 @@ const (
 
 	// DebugConfigurationItem is the name of debug configurations
 	DebugConfigurationItem = "debug"
+
+	// DefaultTableMemoryQuota is the default memory quota for each table.
+	DefaultTableMemoryQuota = 10 * 1024 * 1024 // 10 MB
 )
 
 func init() {
@@ -91,7 +94,7 @@ var defaultServerConfig = &ServerConfig{
 		SortDir:                DefaultSortDir,
 	},
 	Security:            &SecurityConfig{},
-	PerTableMemoryQuota: 10 * 1024 * 1024, // 10MB
+	PerTableMemoryQuota: DefaultTableMemoryQuota,
 	KVClient: &KVClientConfig{
 		WorkerConcurrent: 8,
 		WorkerPoolSize:   0, // 0 will use NumCPU() * 2
diff --git a/tests/integration_tests/big_txn/conf/diff_config.toml b/tests/integration_tests/big_txn/conf/diff_config.toml
new file mode 100644
index 00000000000..367c21817c8
--- /dev/null
+++ b/tests/integration_tests/big_txn/conf/diff_config.toml
@@ -0,0 +1,29 @@
+# diff Configuration.
+
+check-thread-count = 4
+
+export-fix-sql = true
+
+check-struct-only = false
+
+[task]
+    output-dir = "/tmp/tidb_cdc_test/big_txn/sync_diff/output"
+
+    source-instances = ["tidb"]
+
+    target-instance = "mysql"
+
+    target-check-tables = ["big_txn.*"]
+
+[data-sources]
+[data-sources.tidb]
+    host = "127.0.0.1"
+    port = 4000
+    user = "root"
+    password = ""
+
+[data-sources.mysql]
+    host = "127.0.0.1"
+    port = 3306
+    user = "root"
+    password = ""
diff --git a/tests/integration_tests/big_txn/conf/workload b/tests/integration_tests/big_txn/conf/workload
new file mode 100644
index 00000000000..23c9f38ed3f
--- /dev/null
+++ b/tests/integration_tests/big_txn/conf/workload
@@ -0,0 +1,14 @@
+threadcount=1
+recordcount=10000
+operationcount=0
+workload=core
+fieldcount=100
+
+readallfields=true
+
+readproportion=0
+updateproportion=0
+scanproportion=0
+insertproportion=0
+
+requestdistribution=uniform
diff --git a/tests/integration_tests/big_txn/run.sh b/tests/integration_tests/big_txn/run.sh
new file mode 100755
index 00000000000..9683f9f7c01
--- /dev/null
+++ b/tests/integration_tests/big_txn/run.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+set -eu
+
+CUR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+source $CUR/../_utils/test_prepare
+WORK_DIR=$OUT_DIR/$TEST_NAME
+CDC_BINARY=cdc.test
+SINK_TYPE=$1
+
+CDC_COUNT=3
+DB_COUNT=4
+
+function run() {
+	rm -rf $WORK_DIR && mkdir -p $WORK_DIR
+
+	start_tidb_cluster --workdir $WORK_DIR
+
+	cd $WORK_DIR
+
+	start_ts=$(run_cdc_cli_tso_query ${UP_PD_HOST_1} ${UP_PD_PORT_1})
+	TOPIC_NAME="ticdc-big-txn-test-$RANDOM"
+	case $SINK_TYPE in
+	kafka) SINK_URI="kafka://127.0.0.1:9092/$TOPIC_NAME?protocol=open-protocol&partition-num=4&kafka-version=${KAFKA_VERSION}&max-message-bytes=10485760" ;;
+	*) SINK_URI="mysql://normal:123456@127.0.0.1:3306/" ;;
+	esac
+	run_cdc_cli changefeed create --start-ts=$start_ts --sink-uri="$SINK_URI"
+
+	run_sql "CREATE DATABASE big_txn;"
+	go-ycsb load mysql -P $CUR/conf/workload -p mysql.host=${UP_TIDB_HOST} -p mysql.port=${UP_TIDB_PORT} -p mysql.user=root -p mysql.db=big_txn
+	run_cdc_server --workdir $WORK_DIR --binary $CDC_BINARY
+
+	if [ "$SINK_TYPE" == "kafka" ]; then
+		run_kafka_consumer $WORK_DIR "kafka://127.0.0.1:9092/$TOPIC_NAME?protocol=open-protocol&partition-num=4&version=${KAFKA_VERSION}&max-message-bytes=10485760"
+	fi
+
+	check_table_exists "big_txn.USERTABLE" ${DOWN_TIDB_HOST} ${DOWN_TIDB_PORT}
+	run_sql "CREATE TABLE big_txn.USERTABLE1 LIKE big_txn.USERTABLE" ${UP_TIDB_HOST} ${UP_TIDB_PORT}
+	run_sql "INSERT INTO big_txn.USERTABLE1 SELECT * FROM big_txn.USERTABLE" ${UP_TIDB_HOST} ${UP_TIDB_PORT}
+	sleep 60
+	check_table_exists "big_txn.USERTABLE1" ${DOWN_TIDB_HOST} ${DOWN_TIDB_PORT}
+
+	run_sql "CREATE TABLE big_txn.finish_mark_1 (a int primary key);"
+	sleep 120
+	check_table_exists "big_txn.finish_mark_1" ${DOWN_TIDB_HOST} ${DOWN_TIDB_PORT} 60
+
+	check_sync_diff $WORK_DIR $CUR/conf/diff_config.toml
+
+	cleanup_process $CDC_BINARY
+}
+
+trap stop_tidb_cluster EXIT
+run $*
+check_logs $WORK_DIR
+echo "[$(date)] <<<<<< run test case $TEST_NAME success! >>>>>>"