diff --git a/api/cube-cos-openapi b/api/cube-cos-openapi
index a34418d3..6217dc43 160000
--- a/api/cube-cos-openapi
+++ b/api/cube-cos-openapi
@@ -1 +1 @@
-Subproject commit a34418d338c775429c3405fdb80813fd5bbda2aa
+Subproject commit 6217dc43032e8bb170200d646313b4b01e144eec
diff --git a/internal/apis/v1/handlers/metrics/stmt.go b/internal/apis/v1/handlers/metrics/stmt.go
index 789ef746..3c9e003a 100644
--- a/internal/apis/v1/handlers/metrics/stmt.go
+++ b/internal/apis/v1/handlers/metrics/stmt.go
@@ -214,7 +214,7 @@ func (h *helper) genHostNetworkEgressHistoryStmt() string {
 
 func (h *helper) genVmsCpuUsageRankStmt() string {
 	query := influx.Query{}
-	return query.Bucket("monasca").
+	return query.Bucket("telegraf").
 		Range("start: -5m").
 		Filter(`fn: (r) => r._measurement == "vm.cpu.utilization_norm_perc" and r._field == "value"`).
 		Group(`columns: ["resource_id", "vm_name"]`).
@@ -228,7 +228,7 @@ func (h *helper) genVmsCpuUsageRankStmt() string {
 
 func (h *helper) genVmsMemoryRankStmt() string {
 	query := influx.Query{}
-	return query.Bucket("monasca").
+	return query.Bucket("telegraf").
 		Range("start: -5m").
 		Measurement("vm.mem.free_perc").
 		Filter(`fn: (r) => r._field == "value"`).
@@ -243,7 +243,7 @@ func (h *helper) genVmsMemoryRankStmt() string {
 
 func (h *helper) genVmsStorageIopsReadRankStmt() string {
 	query := influx.Query{}
-	return query.Bucket("monasca").
+	return query.Bucket("telegraf").
 		Range("start: -5m").
 		Measurement("vm.io.read_bytes_sec").
 		Filter(`fn: (r) => r._field == "value"`).
@@ -258,7 +258,7 @@ func (h *helper) genVmsStorageIopsReadRankStmt() string {
 
 func (h *helper) genVmsStorageIopsWriteRankStmt() string {
 	query := influx.Query{}
-	return query.Bucket("monasca").
+	return query.Bucket("telegraf").
 		Range("start: -5m").
 		Measurement("vm.io.write_bytes_sec").
 		Filter(`fn: (r) => r._field == "value"`).
@@ -273,7 +273,7 @@ func (h *helper) genVmsStorageIopsWriteRankStmt() string {
 
 func (h *helper) genVmsNetworkIngressRankStmt() string {
 	query := influx.Query{}
-	return query.Bucket("monasca").
+	return query.Bucket("telegraf").
 		Range("start: -5m").
 		Filter(`fn: (r) => r._measurement == "vm.net.in_bytes_sec" and r._field == "value"`).
 		Group(`columns: ["resource_id", "vm_name", "device"]`).
@@ -286,7 +286,7 @@ func (h *helper) genVmsNetworkIngressRankStmt() string {
 
 func (h *helper) genVmsNetworkEgressRankStmt() string {
 	query := influx.Query{}
-	return query.Bucket("monasca").
+	return query.Bucket("telegraf").
 		Range("start: -5m").
 		Filter(`fn: (r) => r._measurement == "vm.net.out_bytes_sec" and r._field == "value"`).
 		Group(`columns: ["resource_id", "vm_name", "device"]`).
diff --git a/internal/cubecos/metric.go b/internal/cubecos/metric.go
index d58874f3..e11be274 100644
--- a/internal/cubecos/metric.go
+++ b/internal/cubecos/metric.go
@@ -135,7 +135,7 @@ var (
 	`
 
 	vmCpuUsageHistoryStmt = `
-		from(bucket: "monasca")
+		from(bucket: "telegraf")
 			|> range(start: -1h)
 			|> filter(fn: (r) =>
 				r._measurement == "vm.cpu.utilization_norm_perc" and
@@ -145,7 +145,7 @@ var (
 	`
 
 	vmMemoryUsageHistoryStmt = `
-		from(bucket: "monasca")
+		from(bucket: "telegraf")
             |> range(start: -1h)
             |> filter(fn: (r) => 
                 r._measurement == "vm.mem.free_perc" and
@@ -158,7 +158,7 @@ var (
 	`
 
 	vmStorageIopsReadHistoryStmt = `
-		from(bucket: "monasca")
+		from(bucket: "telegraf")
 			|> range(start: -1h)
 			|> filter(fn: (r) =>
 				r._measurement == "vm.io.read_bytes_sec" and
@@ -169,7 +169,7 @@ var (
 	`
 
 	vmStorageIopsWriteHistoryStmt = `
-		from(bucket: "monasca")
+		from(bucket: "telegraf")
 			|> range(start: -1h)
 			|> filter(fn: (r) =>
 				r._measurement == "vm.io.write_bytes_sec" and
@@ -180,7 +180,7 @@ var (
 	`
 
 	vmNetworkIngressHistoryStmt = `
-		from(bucket: "monasca")
+		from(bucket: "telegraf")
 			|> range(start: -1h)
 			|> filter(fn: (r) =>
 				r._measurement == "vm.net.in_bytes_sec" and
@@ -192,7 +192,7 @@ var (
 	`
 
 	vmNetworkEgressHistoryStmt = `
-		from(bucket: "monasca")
+		from(bucket: "telegraf")
 			|> range(start: -1h)
 			|> filter(fn: (r) => 
 				r._measurement == "vm.net.out_bytes_sec" and
diff --git a/internal/cubecos/module.go b/internal/cubecos/module.go
index f0875f85..38025f7f 100644
--- a/internal/cubecos/module.go
+++ b/internal/cubecos/module.go
@@ -202,7 +202,6 @@ var (
 			Name:     "metrics",
 			Category: "infrascope",
 			Modules: []services.Module{
-				{Name: "monasca", IsRepairable: true},
 				{Name: "telegraf", IsRepairable: true},
 				{Name: "grafana", IsRepairable: true},
 			},
diff --git a/internal/cubecos/tuning.go b/internal/cubecos/tuning.go
index 4022068a..045b2a6b 100644
--- a/internal/cubecos/tuning.go
+++ b/internal/cubecos/tuning.go
@@ -86,7 +86,6 @@ const (
 	ManilaVolumeType            = "manila.volume.type"
 	MasakariHostEvacuateAll     = "masakari.host.evacuate_all"
 	MasakariWaitPeriod          = "masakari.wait.period"
-	MonascaDebugEnabled         = "monasca.debug.enabled"
 	MysqlBackupCuratorRp        = "mysql.backup.curator.rp"
 	NetIfMtuName                = "net.if.mtu.<name>"
 	NetIpv4TcpSyncookies        = "net.ipv4.tcp_syncookies"
@@ -189,7 +188,6 @@ func setTuningToRoles() {
 	tuningToRoles[ManilaVolumeType] = nodes.AllRoles
 	tuningToRoles[MasakariHostEvacuateAll] = nodes.AllRoles
 	tuningToRoles[MasakariWaitPeriod] = nodes.ControlRoles
-	tuningToRoles[MonascaDebugEnabled] = nodes.AllRoles
 	tuningToRoles[MysqlBackupCuratorRp] = nodes.AllRoles
 	tuningToRoles[NetIfMtuName] = nodes.AllRoles
 	tuningToRoles[NetIpv4TcpSyncookies] = nodes.AllRoles