diff --git a/client/client-1.0/grpc_client/grpc_client.go b/client/client-1.0/grpc_client/grpc_client.go
index 6867294d..df6670a9 100644
--- a/client/client-1.0/grpc_client/grpc_client.go
+++ b/client/client-1.0/grpc_client/grpc_client.go
@@ -43,7 +43,8 @@ func initCommandList() {
 
 	commandList[0] = `{"action":"get","path":"Vehicle/Speed","requestId":"232"}`
 	commandList[1] = `{"action":"set", "path":"Vehicle/Body/Lights/IsLeftIndicatorOn", "value":"true", "requestId":"245"}`
-	commandList[2] = `{"action":"subscribe","path":"Vehicle","filter":[{"type":"paths","parameter":["Speed", "Chassis.Accelerator.PedalPosition"]},{"type":"timebased","parameter":	{"period":"5000"}}],"requestId":"246"}`
+	commandList[2] = `{"action":"subscribe","path":"Vehicle.Speed","filter":{"type":"curvelog","parameter":{"maxerr":"2","bufsize":"15"}},"requestId":"285"}`
+/*	commandList[2] = `{"action":"subscribe","path":"Vehicle","filter":[{"type":"paths","parameter":["Speed", "Chassis.Accelerator.PedalPosition"]},{"type":"timebased","parameter":	{"period":"5000"}}],"requestId":"246"}`*/
 	commandList[3] = `{"action":"unsubscribe","subscriptionId":"X","requestId":"240"}` // X is replaced according to input
 
 	/* different variants
diff --git a/feeder/feeder-template/feederv1/feederv1.go b/feeder/feeder-template/feederv1/feederv1.go
index c8ee5245..3aac446e 100644
--- a/feeder/feeder-template/feederv1/feederv1.go
+++ b/feeder/feeder-template/feederv1/feederv1.go
@@ -85,7 +85,7 @@ func statestorageSet(path string, val string, ts string) int {
 		}
 		return 0
 	case "redis":
-		dp := `{"val":"` + val + `", "ts":"` + ts + `"}`
+		dp := `{"value":"` + val + `", "ts":"` + ts + `"}`
 		err := redisClient.Set(path, dp, time.Duration(0)).Err()
 		if err != nil {
 			utils.Error.Printf("Job failed. Err=%s", err)
diff --git a/feeder/feeder-template/feederv2/feederv2.go b/feeder/feeder-template/feederv2/feederv2.go
index 57e19fe9..9f70c322 100644
--- a/feeder/feeder-template/feederv2/feederv2.go
+++ b/feeder/feeder-template/feederv2/feederv2.go
@@ -189,7 +189,7 @@ func statestorageSet(path string, val string, ts string) int {
 		}
 		return 0
 	case "redis":
-		dp := `{"val":"` + val + `", "ts":"` + ts + `"}`
+		dp := `{"value":"` + val + `", "ts":"` + ts + `"}`
 		err := redisClient.Set(path, dp, time.Duration(0)).Err()
 		if err != nil {
 			utils.Error.Printf("Job failed. Err=%s", err)
@@ -197,7 +197,7 @@ func statestorageSet(path string, val string, ts string) int {
 		}
 		return 0
 	case "memcache":
-		dp := `{"val":"` + val + `", "ts":"` + ts + `"}`
+		dp := `{"value":"` + val + `", "ts":"` + ts + `"}`
 		err := memcacheClient.Set(&memcache.Item{Key: path, Value: []byte(dp)})
 		if err != nil {
 			utils.Error.Printf("Job failed. Err=%s", err)
diff --git a/server/vissv2server/serviceMgr/curvelog.go b/server/vissv2server/serviceMgr/curvelog.go
index 19b4114a..f5a3c220 100644
--- a/server/vissv2server/serviceMgr/curvelog.go
+++ b/server/vissv2server/serviceMgr/curvelog.go
@@ -427,6 +427,7 @@ func clCapture1dim(clChan chan CLPack, subscriptionId int, path string, bufSize
 		}
 		mcloseClSubId.Unlock()
 		dp := getVehicleData(path)
+utils.Info.Printf("dp=%s", dp)
 		utils.MapRequest(dp, &dpMap)
 		_, ts := readRing(&aRingBuffer, 0) // read latest written
 		if ts != dpMap["ts"].(string) {
@@ -442,11 +443,11 @@ func clCapture1dim(clChan chan CLPack, subscriptionId int, path string, bufSize
 			var clPack CLPack
 			clPack.SubscriptionId = subscriptionId
 			if len(extraData) > 0 {
-				clPack.DataPack = `{"path":"` + path + `","data":` + extraData + "}"
+				clPack.DataPack = `{"path":"` + path + `","dp":` + extraData + "}"
 				clChan <- clPack
 			}
 			if lastSelected > 0 {
-				clPack.DataPack = `{"path":"` + path + `","data":` + data + "}"
+				clPack.DataPack = `{"path":"` + path + `","dp":` + data + "}"
 				clChan <- clPack
 			}
 			setRingTail(&aRingBuffer, lastSelected) // update tail pointer
@@ -628,7 +629,7 @@ func transformDataPoint(aRingBuffer *RingBuffer, index int, tsBase time.Time) (C
 func returnSingleDp(clChan chan CLPack, subscriptionId int, path string) {
 	dp := getVehicleData(path)
 	var clPack CLPack
-	clPack.DataPack = `{"path":"` + path + `","data":` + dp + "}"
+	clPack.DataPack = `{"path":"` + path + `","dp":` + dp + "}"
 	clPack.SubscriptionId = subscriptionId
 	clChan <- clPack
 }
@@ -637,7 +638,7 @@ func returnSingleDp2(clChan chan CLPack, subscriptionId int, paths Dim2Elem) {
 	dp1 := getVehicleData(paths.Path1)
 	dp2 := getVehicleData(paths.Path2)
 	var clPack CLPack
-	clPack.DataPack = `[{"path":"` + paths.Path1 + `","data":` + dp1 + "}," + `{"path":"` + paths.Path2 + `","data":` + dp2 + "}]"
+	clPack.DataPack = `[{"path":"` + paths.Path1 + `","dp":` + dp1 + "}," + `{"path":"` + paths.Path2 + `","dp":` + dp2 + "}]"
 	clPack.SubscriptionId = subscriptionId
 	clChan <- clPack
 }
@@ -647,7 +648,7 @@ func returnSingleDp3(clChan chan CLPack, subscriptionId int, paths Dim3Elem) {
 	dp2 := getVehicleData(paths.Path2)
 	dp3 := getVehicleData(paths.Path3)
 	var clPack CLPack
-	clPack.DataPack = `[{"path":"` + paths.Path1 + `","data":` + dp1 + `},{"path":"` + paths.Path2 + `","data":` + dp2 + `},{"path":"` + paths.Path3 + `","data":` + dp3 + "}]"
+	clPack.DataPack = `[{"path":"` + paths.Path1 + `","dp":` + dp1 + `},{"path":"` + paths.Path2 + `","dp":` + dp2 + `},{"path":"` + paths.Path3 + `","dp":` + dp3 + "}]"
 	clPack.SubscriptionId = subscriptionId
 	clChan <- clPack
 }
@@ -687,7 +688,7 @@ func clCapture2dim(clChan chan CLPack, subscriptionId int, paths Dim2Elem, bufSi
 		if (currentBufSize == bufSize) || (closeClSession == true) {
 			data1, data2, updatedTail := clAnalyze2dim(&aRingBuffer1, &aRingBuffer2, currentBufSize, maxError)
 			var clPack CLPack
-			clPack.DataPack = `[{"path":"` + paths.Path1 + `","data":` + data1 + "}," + `{"path":"` + paths.Path2 + `","data":` + data2 + "}]"
+			clPack.DataPack = `[{"path":"` + paths.Path1 + `","dp":` + data1 + "}," + `{"path":"` + paths.Path2 + `","dp":` + data2 + "}]"
 			clPack.SubscriptionId = subscriptionId
 			clChan <- clPack
 			setRingTail(&aRingBuffer1, updatedTail)
@@ -812,7 +813,7 @@ func clCapture3dim(clChan chan CLPack, subscriptionId int, paths Dim3Elem, bufSi
 		if (currentBufSize == bufSize) || (closeClSession == true) {
 			data1, data2, data3, updatedTail := clAnalyze3dim(&aRingBuffer1, &aRingBuffer2, &aRingBuffer3, currentBufSize, maxError)
 			var clPack CLPack
-			clPack.DataPack = `[{"path":"` + paths.Path1 + `","data":` + data1 + `},{"path":"` + paths.Path2 + `","data":` + data2 + `},{"path":"` + paths.Path3 + `","data":` + data3 + "}]"
+			clPack.DataPack = `[{"path":"` + paths.Path1 + `","dp":` + data1 + `},{"path":"` + paths.Path2 + `","dp":` + data2 + `},{"path":"` + paths.Path3 + `","dp":` + data3 + "}]"
 			clPack.SubscriptionId = subscriptionId
 			clChan <- clPack
 			setRingTail(&aRingBuffer1, updatedTail)
diff --git a/utils/grcputils.go b/utils/grcputils.go
index fc98788b..93bb3391 100644
--- a/utils/grcputils.go
+++ b/utils/grcputils.go
@@ -824,7 +824,7 @@ func createJSON(value string, key string) string {
 
 func createJsonData(dataPack []*pb.DataPackages_DataPackage) string {
 	data := ""
-
+Info.Printf("createJsonData:len(dataPack)=%d", len(dataPack))
 	if len(dataPack) > 1 {
 		data += "["
 	}
@@ -835,6 +835,7 @@ func createJsonData(dataPack []*pb.DataPackages_DataPackage) string {
 		} else {
 			path = DecompressPath(dataPack[i].GetPathC())
 		}
+Info.Printf("createJsonData:path=%s", path)
 		dp := getJsonDp(dataPack[i])
 		data += `{"path":"` + path + `","dp":` + dp + `},`
 	}