diff --git a/internal/database/dialer/postgres/client_partitioned.go b/internal/database/dialer/postgres/client_partitioned.go
index 22e9b749..880add11 100644
--- a/internal/database/dialer/postgres/client_partitioned.go
+++ b/internal/database/dialer/postgres/client_partitioned.go
@@ -556,6 +556,8 @@ func (c *client) deleteExpiredActivitiesPartitioned(ctx context.Context, network
 			continue
 		}
 
+		zap.L().Info("deleting expired activities", zap.String("table", activityTable), zap.String("indexTable", indexTable))
+
 		for {
 			done, err := c.batchDeleteExpiredActivities(ctx, network, timestamp, batchSize, &indexTable, lo.Ternary(activityTableExists, &activityTable, nil))
 			if err != nil {
@@ -572,7 +574,7 @@ func (c *client) deleteExpiredActivitiesPartitioned(ctx context.Context, network
 }
 
 func (c *client) batchDeleteExpiredActivities(ctx context.Context, network network.Network, timestamp time.Time, batchSize int, indexTable *string, activityTable *string) (bool, error) {
-	databaseTransaction := c.database.WithContext(ctx).Debug().Begin()
+	databaseTransaction := c.database.WithContext(ctx).Begin()
 	defer func() {
 		_ = databaseTransaction.Rollback().Error
 	}()
diff --git a/internal/node/monitor/cronjob.go b/internal/node/monitor/cronjob.go
index e5af38a3..9e7b8b35 100644
--- a/internal/node/monitor/cronjob.go
+++ b/internal/node/monitor/cronjob.go
@@ -74,11 +74,20 @@ func (c *CronJob) Renewal(ctx context.Context) {
 }
 
 func (c *CronJob) Start() {
+	zap.L().Info("start cron job", zap.String("key", c.mutex.Name()))
+
 	c.crontab.Start()
 }
 
 func (c *CronJob) Stop() {
+	zap.L().Info("stop cron job", zap.String("key", c.mutex.Name()))
+
 	c.crontab.Stop()
+	c.ReleaseLock()
+}
+
+func (c *CronJob) ReleaseLock() {
+	_, _ = c.mutex.Unlock()
 }
 
 func NewCronJob(client rueidis.Client, name string, timeout time.Duration) (*CronJob, error) {
diff --git a/internal/node/monitor/server.go b/internal/node/monitor/server.go
index f965814e..5bbfefc4 100644
--- a/internal/node/monitor/server.go
+++ b/internal/node/monitor/server.go
@@ -17,6 +17,11 @@ import (
 	"go.uber.org/zap"
 )
 
+const (
+	MonitorWorkerStatusJob = "worker_status"
+	DatabaseMaintenanceJob = "database_maintenance"
+)
+
 type Monitor struct {
 	config              *config.File
 	databaseClient      database.Client
@@ -29,33 +34,31 @@ type Monitor struct {
 func (m *Monitor) Run(ctx context.Context) error {
 	if m.databaseClient != nil && m.redisClient != nil {
 		// Start the monitor cron job.
-		monitorWorkerStatus, err := NewCronJob(m.redisClient, "worker_status", 10*time.Minute)
+		monitorWorkerStatus, err := NewCronJob(m.redisClient, MonitorWorkerStatusJob, 10*time.Minute)
 		if err != nil {
 			return fmt.Errorf("new cron job: %w", err)
 		}
 
-		if err := monitorWorkerStatus.AddFunc(ctx, "@every 5m", func() {
-			if err := parameter.CheckParamsTask(ctx, m.redisClient, m.networkParamsCaller); err != nil {
+		if err = monitorWorkerStatus.AddFunc(ctx, "@every 5m", func() {
+			if err = parameter.CheckParamsTask(ctx, m.redisClient, m.networkParamsCaller); err != nil {
 				return
 			}
 
-			if err := m.MonitorWorkerStatus(ctx); err != nil {
+			if err = m.MonitorWorkerStatus(ctx); err != nil {
 				return
 			}
 		}); err != nil {
 			return fmt.Errorf("add heartbeat cron job: %w", err)
 		}
 
-		monitorWorkerStatus.Start()
-
 		// Start the database maintenance cron job.
-		databaseMaintenance, err := NewCronJob(m.redisClient, "database_maintenance", 5*24*time.Hour)
+		databaseMaintenance, err := NewCronJob(m.redisClient, DatabaseMaintenanceJob, 5*24*time.Hour)
 		if err != nil {
 			return fmt.Errorf("new cron job: %w", err)
 		}
 
-		if err := databaseMaintenance.AddFunc(ctx, "0 0 0 * * *", func() {
-			if err := m.MaintainCoveragePeriod(ctx); err != nil {
+		if err = databaseMaintenance.AddFunc(ctx, "0 0 0 * * *", func() {
+			if err = m.MaintainCoveragePeriod(ctx); err != nil {
 				zap.L().Error("maintain coverage period", zap.Error(err))
 
 				return
@@ -64,6 +67,12 @@ func (m *Monitor) Run(ctx context.Context) error {
 			return fmt.Errorf("add database maintenance cron job: %w", err)
 		}
 
+		defer func() {
+			monitorWorkerStatus.Stop()
+			databaseMaintenance.Stop()
+		}()
+
+		monitorWorkerStatus.Start()
 		databaseMaintenance.Start()
 	}