diff --git a/scripts/runSpider.sh b/scripts/runSpider.sh
index b18c3cca9..177b0c7c5 100755
--- a/scripts/runSpider.sh
+++ b/scripts/runSpider.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 CONTAINER_NAME_READ="CB-Spider"
-CONTAINER_VERSION="0.8.4"
+CONTAINER_VERSION="0.8.7"
 CONTAINER_PORT="-p 1024:1024 -p 2048:2048"
 CONTAINER_DATA_PATH="/root/go/src/github.com/cloud-barista/cb-spider/meta_db"
 
diff --git a/src/api/rest/docs/docs.go b/src/api/rest/docs/docs.go
index faf54e723..d2f27a39c 100644
--- a/src/api/rest/docs/docs.go
+++ b/src/api/rest/docs/docs.go
@@ -1826,6 +1826,12 @@ const docTemplate = `{
                         "description": "vmId to apply the command only for a VM in MCIS",
                         "name": "vmId",
                         "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "Custom request ID",
+                        "name": "x-request-id",
+                        "in": "header"
                     }
                 ],
                 "responses": {
diff --git a/src/api/rest/docs/swagger.json b/src/api/rest/docs/swagger.json
index 988244171..76f483be1 100644
--- a/src/api/rest/docs/swagger.json
+++ b/src/api/rest/docs/swagger.json
@@ -1819,6 +1819,12 @@
                         "description": "vmId to apply the command only for a VM in MCIS",
                         "name": "vmId",
                         "in": "query"
+                    },
+                    {
+                        "type": "string",
+                        "description": "Custom request ID",
+                        "name": "x-request-id",
+                        "in": "header"
                     }
                 ],
                 "responses": {
diff --git a/src/api/rest/docs/swagger.yaml b/src/api/rest/docs/swagger.yaml
index 3488e7028..70b74cf65 100644
--- a/src/api/rest/docs/swagger.yaml
+++ b/src/api/rest/docs/swagger.yaml
@@ -4029,6 +4029,10 @@ paths:
         in: query
         name: vmId
         type: string
+      - description: Custom request ID
+        in: header
+        name: x-request-id
+        type: string
       produces:
       - application/json
       responses:
diff --git a/src/api/rest/server/common/config.go b/src/api/rest/server/common/config.go
index efb911ae8..ee00a884c 100644
--- a/src/api/rest/server/common/config.go
+++ b/src/api/rest/server/common/config.go
@@ -41,7 +41,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /config/{configId} [delete]
 func RestInitConfig(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	if err := Validate(c, []string{"configId"}); err != nil {
 		common.CBLog.Error(err)
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -70,7 +73,10 @@ func RestInitConfig(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /config/{configId} [get]
 func RestGetConfig(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	if err := Validate(c, []string{"configId"}); err != nil {
 		common.CBLog.Error(err)
 		return SendMessage(c, http.StatusBadRequest, err.Error())
@@ -102,7 +108,10 @@ type RestGetAllConfigResponse struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /config [get]
 func RestGetAllConfig(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	var content RestGetAllConfigResponse
 
 	configList, err := common.ListConfig()
@@ -122,7 +131,10 @@ func RestGetAllConfig(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /config [post]
 func RestPostConfig(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &common.ConfigReq{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -144,7 +156,10 @@ func RestPostConfig(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /config [delete]
 func RestInitAllConfig(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	err := common.InitAllConfig()
 	content := map[string]string{
 		"message": "All configs has been initialized"}
diff --git a/src/api/rest/server/common/namespace.go b/src/api/rest/server/common/namespace.go
index c71522119..c1f5cf7da 100644
--- a/src/api/rest/server/common/namespace.go
+++ b/src/api/rest/server/common/namespace.go
@@ -15,13 +15,18 @@ limitations under the License.
 package common
 
 import (
+	"net/http"
+
 	"github.com/labstack/echo/v4"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 )
 
 func RestCheckNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	if err := Validate(c, []string{"nsId"}); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
 	}
@@ -45,7 +50,10 @@ func RestCheckNs(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns [delete]
 func RestDelAllNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	err := common.DelAllNs()
 	content := map[string]string{"message": "All namespaces has been deleted"}
 	return common.EndRequestWithLog(c, reqID, err, content)
@@ -62,7 +70,10 @@ func RestDelAllNs(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId} [delete]
 func RestDelNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	if err := Validate(c, []string{"nsId"}); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
 	}
@@ -97,7 +108,10 @@ type RestGetAllNsResponse struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns [get]
 func RestGetAllNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	optionFlag := c.QueryParam("option")
 
 	var content RestGetAllNsResponse
@@ -125,7 +139,11 @@ func RestGetAllNs(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId} [get]
 func RestGetNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
+
 	if err := Validate(c, []string{"nsId"}); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
 	}
@@ -146,7 +164,10 @@ func RestGetNs(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns [post]
 func RestPostNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &common.NsReq{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -170,7 +191,10 @@ func RestPostNs(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId} [put]
 func RestPutNs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &common.NsReq{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
diff --git a/src/api/rest/server/common/utility.go b/src/api/rest/server/common/utility.go
index 36cb40b3b..bc2fce18c 100644
--- a/src/api/rest/server/common/utility.go
+++ b/src/api/rest/server/common/utility.go
@@ -152,7 +152,10 @@ func RestGetSwagger(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /connConfig/{connConfigName} [get]
 func RestGetConnConfig(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	connConfigName := c.Param("connConfigName")
 
 	content, err := common.GetConnConfig(connConfigName)
@@ -172,7 +175,10 @@ func RestGetConnConfig(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /connConfig [get]
 func RestGetConnConfigList(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	content, err := common.GetConnConfigList()
 	return common.EndRequestWithLog(c, reqID, err, content)
 }
@@ -190,7 +196,10 @@ func RestGetConnConfigList(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /region/{regionName} [get]
 func RestGetRegion(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	regionName := c.Param("regionName")
 
 	content, err := common.GetRegion(regionName)
@@ -210,7 +219,10 @@ func RestGetRegion(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /region [get]
 func RestGetRegionList(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	content, err := common.GetRegionList()
 	return common.EndRequestWithLog(c, reqID, err, content)
 
@@ -345,7 +357,10 @@ type RestInspectResourcesRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /inspectResources [post]
 func RestInspectResources(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestInspectResourcesRequest{}
 	if err := c.Bind(u); err != nil {
 		return err
@@ -375,7 +390,10 @@ func RestInspectResources(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /inspectResourcesOverview [get]
 func RestInspectResourcesOverview(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	content, err := mcis.InspectResourcesOverview()
 	return common.EndRequestWithLog(c, reqID, err, content)
 }
@@ -401,7 +419,10 @@ type RestRegisterCspNativeResourcesRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /registerCspResources [post]
 func RestRegisterCspNativeResources(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestRegisterCspNativeResourcesRequest{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -434,7 +455,10 @@ type RestRegisterCspNativeResourcesRequestAll struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /registerCspResourcesAll [post]
 func RestRegisterCspNativeResourcesAll(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestRegisterCspNativeResourcesRequest{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -457,7 +481,10 @@ func RestRegisterCspNativeResourcesAll(c echo.Context) error {
 // @Success 200 {object} map[string]interface{}
 // @Router /forward/{path} [post]
 func RestForwardAnyReqToAny(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	reqPath := c.Param("*")
 	reqPath, err := url.PathUnescape(reqPath)
 	if err != nil {
diff --git a/src/api/rest/server/mcir/common.go b/src/api/rest/server/mcir/common.go
index 878028b0a..5612d4019 100644
--- a/src/api/rest/server/mcir/common.go
+++ b/src/api/rest/server/mcir/common.go
@@ -16,6 +16,7 @@ package mcir
 
 import (
 	"fmt"
+	"net/http"
 	"strings"
 
 	"github.com/labstack/echo/v4"
@@ -34,7 +35,10 @@ type JSONResult struct {
 // RestDelAllResources is a common function to handle 'DelAllResources' REST API requests.
 // Dummy functions for Swagger exist in [mcir/*.go]
 func RestDelAllResources(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	resourceType := strings.Split(c.Path(), "/")[5]
 	// c.Path(): /tumblebug/ns/:nsId/resources/spec/:specId
@@ -49,7 +53,10 @@ func RestDelAllResources(c echo.Context) error {
 // RestDelResource is a common function to handle 'DelResource' REST API requests.
 // Dummy functions for Swagger exist in [mcir/*.go]
 func RestDelResource(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	resourceType := strings.Split(c.Path(), "/")[5]
@@ -67,7 +74,10 @@ func RestDelResource(c echo.Context) error {
 // RestDelChildResource is a common function to handle 'DelChildResource' REST API requests.
 // Dummy functions for Swagger exist in [mcir/*.go]
 func RestDelChildResource(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	childResourceType := strings.Split(c.Path(), "/")[7]
@@ -86,7 +96,10 @@ func RestDelChildResource(c echo.Context) error {
 // RestGetAllResources is a common function to handle 'GetAllResources' REST API requests.
 // Dummy functions for Swagger exist in [mcir/*.go]
 func RestGetAllResources(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	optionFlag := c.QueryParam("option")
@@ -170,7 +183,10 @@ func RestGetAllResources(c echo.Context) error {
 // RestGetResource is a common function to handle 'GetResource' REST API requests.
 // Dummy functions for Swagger exist in [mcir/*.go]
 func RestGetResource(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	resourceType := strings.Split(c.Path(), "/")[5]
@@ -199,7 +215,10 @@ func RestGetResource(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /{nsId}/checkResource/{resourceType}/{resourceId} [get]
 func RestCheckResource(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	resourceType := c.Param("resourceType")
 	resourceId := c.Param("resourceId")
@@ -218,7 +237,10 @@ func RestCheckResource(c echo.Context) error {
 // RestTestAddObjectAssociation is a REST API call handling function
 // to test "mcir.UpdateAssociatedObjectList" function with "add" argument.
 func RestTestAddObjectAssociation(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	//resourceType := strings.Split(c.Path(), "/")[5]
 	// c.Path(): /tumblebug/ns/:nsId/testAddObjectAssociation/:resourceType/:resourceId
@@ -233,7 +255,10 @@ func RestTestAddObjectAssociation(c echo.Context) error {
 // RestTestDeleteObjectAssociation is a REST API call handling function
 // to test "mcir.UpdateAssociatedObjectList" function with "delete" argument.
 func RestTestDeleteObjectAssociation(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	//resourceType := strings.Split(c.Path(), "/")[5]
 	// c.Path(): /tumblebug/ns/:nsId/testDeleteObjectAssociation/:resourceType/:resourceId
@@ -247,7 +272,10 @@ func RestTestDeleteObjectAssociation(c echo.Context) error {
 // RestTestGetAssociatedObjectCount is a REST API call handling function
 // to test "mcir.GetAssociatedObjectCount" function.
 func RestTestGetAssociatedObjectCount(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	//resourceType := strings.Split(c.Path(), "/")[5]
 	// c.Path(): /tumblebug/ns/:nsId/testGetAssociatedObjectCount/:resourceType/:resourceId
@@ -270,7 +298,10 @@ func RestTestGetAssociatedObjectCount(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /loadCommonResource [get]
 func RestLoadCommonResource(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	content, err := mcir.LoadCommonResource()
 	return common.EndRequestWithLog(c, reqID, err, content)
 }
@@ -288,7 +319,10 @@ func RestLoadCommonResource(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/loadDefaultResource [get]
 func RestLoadDefaultResource(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	resType := c.QueryParam("option")
 
@@ -311,7 +345,10 @@ func RestLoadDefaultResource(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/defaultResources [delete]
 func RestDelAllDefaultResources(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	content, err := mcir.DelAllDefaultResources(nsId)
diff --git a/src/api/rest/server/mcir/customimage.go b/src/api/rest/server/mcir/customimage.go
index 2cd7814c7..8d5638b03 100644
--- a/src/api/rest/server/mcir/customimage.go
+++ b/src/api/rest/server/mcir/customimage.go
@@ -16,6 +16,7 @@ package mcir
 
 import (
 	"fmt"
+	"net/http"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
@@ -36,7 +37,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/customImage [post]
 func RestPostCustomImage(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	optionFlag := c.QueryParam("option")
diff --git a/src/api/rest/server/mcir/dataDisk.go b/src/api/rest/server/mcir/dataDisk.go
index 39a91527c..0fa69c12d 100644
--- a/src/api/rest/server/mcir/dataDisk.go
+++ b/src/api/rest/server/mcir/dataDisk.go
@@ -16,6 +16,7 @@ package mcir
 
 import (
 	"fmt"
+	"net/http"
 	"strconv"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
@@ -38,7 +39,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/dataDisk [post]
 func RestPostDataDisk(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 
@@ -67,7 +71,10 @@ func RestPostDataDisk(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/dataDisk/{dataDiskId} [put]
 func RestPutDataDisk(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 	dataDiskId := c.Param("resourceId")
@@ -171,7 +178,10 @@ func RestDelAllDataDisk(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{vmId}/dataDisk [put]
 func RestPutVmDataDisk(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
@@ -219,7 +229,10 @@ func RestPutVmDataDisk(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{vmId}/dataDisk [post]
 func RestPostVmDataDisk(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
@@ -251,7 +264,10 @@ func RestPostVmDataDisk(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{vmId}/dataDisk [get]
 func RestGetVmDataDisk(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
diff --git a/src/api/rest/server/mcir/firewallrule.go b/src/api/rest/server/mcir/firewallrule.go
index fd8825581..414014a6f 100644
--- a/src/api/rest/server/mcir/firewallrule.go
+++ b/src/api/rest/server/mcir/firewallrule.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcir
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
 	"github.com/labstack/echo/v4"
@@ -37,7 +39,10 @@ type TbFirewallRulesWrapper struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/securityGroup/{securityGroupId}/rules [post]
 func RestPostFirewallRules(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	securityGroupId := c.Param("securityGroupId")
 
@@ -106,7 +111,10 @@ type RestGetAllFirewallRulesResponse struct {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/securityGroup/{securityGroupId}/rules [delete]
 func RestDelFirewallRules(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	securityGroupId := c.Param("securityGroupId")
 
diff --git a/src/api/rest/server/mcir/image.go b/src/api/rest/server/mcir/image.go
index e8866e870..4e973d575 100644
--- a/src/api/rest/server/mcir/image.go
+++ b/src/api/rest/server/mcir/image.go
@@ -16,6 +16,7 @@ package mcir
 
 import (
 	"fmt"
+	"net/http"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
@@ -37,7 +38,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/image [post]
 func RestPostImage(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	action := c.QueryParam("action")
@@ -86,7 +90,10 @@ func RestPostImage(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/image/{imageId} [put]
 func RestPutImage(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	imageId := c.Param("resourceId")
 
@@ -117,7 +124,10 @@ type RestLookupImageRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /lookupImage [post]
 func RestLookupImage(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestLookupImageRequest{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -141,7 +151,10 @@ func RestLookupImage(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /lookupImages [post]
 func RestLookupImageList(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestLookupImageRequest{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -165,7 +178,10 @@ func RestLookupImageList(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/fetchImages [post]
 func RestFetchImages(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	u := &RestLookupImageRequest{}
@@ -285,7 +301,10 @@ type RestSearchImageRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/searchImage [post]
 func RestSearchImage(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	u := &RestSearchImageRequest{}
diff --git a/src/api/rest/server/mcir/securitygroup.go b/src/api/rest/server/mcir/securitygroup.go
index a3a9a0dd9..c7130d497 100644
--- a/src/api/rest/server/mcir/securitygroup.go
+++ b/src/api/rest/server/mcir/securitygroup.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcir
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
 	"github.com/labstack/echo/v4"
@@ -34,7 +36,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/securityGroup [post]
 func RestPostSecurityGroup(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	optionFlag := c.QueryParam("option")
diff --git a/src/api/rest/server/mcir/spec.go b/src/api/rest/server/mcir/spec.go
index cd6ae147c..1887b7ee2 100644
--- a/src/api/rest/server/mcir/spec.go
+++ b/src/api/rest/server/mcir/spec.go
@@ -16,6 +16,7 @@ package mcir
 
 import (
 	"fmt"
+	"net/http"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
@@ -37,7 +38,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/spec [post]
 func RestPostSpec(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	action := c.QueryParam("action")
@@ -82,7 +86,10 @@ func RestPostSpec(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/spec/{specId} [put]
 func RestPutSpec(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	specId := c.Param("resourceId")
 
@@ -113,7 +120,10 @@ type RestLookupSpecRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /lookupSpec [post]
 func RestLookupSpec(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestLookupSpecRequest{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -137,7 +147,10 @@ func RestLookupSpec(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /lookupSpecs [post]
 func RestLookupSpecList(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	u := &RestLookupSpecRequest{}
 	if err := c.Bind(u); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -161,7 +174,10 @@ func RestLookupSpecList(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/fetchSpecs [post]
 func RestFetchSpecs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	u := &RestLookupSpecRequest{}
@@ -208,7 +224,10 @@ type RestFilterSpecsResponse struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/filterSpecs [post]
 func RestFilterSpecs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	u := &mcir.TbSpecInfo{}
@@ -236,7 +255,10 @@ func RestFilterSpecs(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/filterSpecsByRange [post]
 func RestFilterSpecsByRange(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	u := &mcir.FilterSpecsByRangeRequest{}
@@ -252,7 +274,10 @@ func RestFilterSpecsByRange(c echo.Context) error {
 }
 
 func RestTestSortSpecs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	u := &mcir.TbSpecInfo{}
diff --git a/src/api/rest/server/mcir/sshkey.go b/src/api/rest/server/mcir/sshkey.go
index e5b0bd276..ffd862ff3 100644
--- a/src/api/rest/server/mcir/sshkey.go
+++ b/src/api/rest/server/mcir/sshkey.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcir
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
 	"github.com/labstack/echo/v4"
@@ -34,7 +36,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/sshKey [post]
 func RestPostSshKey(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 
@@ -63,7 +68,10 @@ func RestPostSshKey(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/sshKey/{sshKeyId} [put]
 func RestPutSshKey(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	sshKeyId := c.Param("resourceId")
 
diff --git a/src/api/rest/server/mcir/subnet.go b/src/api/rest/server/mcir/subnet.go
index 7782129f5..38073946b 100644
--- a/src/api/rest/server/mcir/subnet.go
+++ b/src/api/rest/server/mcir/subnet.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcir
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
 	"github.com/labstack/echo/v4"
@@ -34,7 +36,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/vNet/{vNetId}/subnet [post]
 func RestPostSubnet(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	vNetId := c.Param("vNetId")
 
diff --git a/src/api/rest/server/mcir/vnet.go b/src/api/rest/server/mcir/vnet.go
index e1d0983aa..ab7ea84de 100644
--- a/src/api/rest/server/mcir/vnet.go
+++ b/src/api/rest/server/mcir/vnet.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcir
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcir"
 	"github.com/labstack/echo/v4"
@@ -34,7 +36,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/resources/vNet [post]
 func RestPostVNet(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	optionFlag := c.QueryParam("option")
 	u := &mcir.TbVNetReq{}
diff --git a/src/api/rest/server/mcis/benchmark.go b/src/api/rest/server/mcis/benchmark.go
index e3bf17dae..d04bc7f00 100644
--- a/src/api/rest/server/mcis/benchmark.go
+++ b/src/api/rest/server/mcis/benchmark.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -35,7 +37,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/installBenchmarkAgent/mcis/{mcisId} [post]
 func RestPostInstallBenchmarkAgentToMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
@@ -79,7 +84,10 @@ type RestGetAllBenchmarkRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/benchmarkAll/mcis/{mcisId} [post]
 func RestGetAllBenchmark(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
@@ -106,7 +114,10 @@ func RestGetAllBenchmark(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/benchmarkLatency/mcis/{mcisId} [get]
 func RestGetBenchmarkLatency(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -133,7 +144,10 @@ type RestGetBenchmarkRequest struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/benchmark/mcis/{mcisId} [post]
 func RestGetBenchmark(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	action := c.QueryParam("action")
diff --git a/src/api/rest/server/mcis/control.go b/src/api/rest/server/mcis/control.go
index 808882ec8..bddb1e395 100644
--- a/src/api/rest/server/mcis/control.go
+++ b/src/api/rest/server/mcis/control.go
@@ -16,6 +16,7 @@ package mcis
 
 import (
 	"fmt"
+	"net/http"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
@@ -37,7 +38,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/control/mcis/{mcisId} [get]
 func RestGetControlMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -75,7 +79,10 @@ func RestGetControlMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/control/mcis/{mcisId}/vm/{vmId} [get]
 func RestGetControlMcisVm(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
@@ -113,7 +120,10 @@ func RestGetControlMcisVm(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{vmId}/snapshot [post]
 func RestPostMcisVmSnapshot(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
diff --git a/src/api/rest/server/mcis/manageInfo.go b/src/api/rest/server/mcis/manageInfo.go
index 44615e405..8d1776b46 100644
--- a/src/api/rest/server/mcis/manageInfo.go
+++ b/src/api/rest/server/mcis/manageInfo.go
@@ -16,6 +16,7 @@ package mcis
 
 import (
 	"fmt"
+	"net/http"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
@@ -49,7 +50,10 @@ type JSONResult struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId} [get]
 func RestGetMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
@@ -114,7 +118,10 @@ type RestGetAllMcisStatusResponse struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis [get]
 func RestGetAllMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	option := c.QueryParam("option")
 
@@ -186,7 +193,10 @@ func RestPutMcis(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId} [delete]
 func RestDelMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	option := c.QueryParam("option")
@@ -207,7 +217,10 @@ func RestDelMcis(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis [delete]
 func RestDelAllMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	option := c.QueryParam("option")
 
@@ -233,7 +246,10 @@ func RestDelAllMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{vmId} [get]
 func RestGetMcisVm(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
@@ -289,7 +305,10 @@ func RestPutMcisVm(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{vmId} [delete]
 func RestDelMcisVm(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
@@ -321,7 +340,10 @@ func RestDelMcisVm(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/subgroup/{subgroupId} [get]
 func RestGetMcisGroupVms(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	subgroupId := c.Param("subgroupId")
@@ -346,7 +368,10 @@ func RestGetMcisGroupVms(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/subgroup [get]
 func RestGetMcisGroupIds(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	//option := c.QueryParam("option")
diff --git a/src/api/rest/server/mcis/monitoring.go b/src/api/rest/server/mcis/monitoring.go
index 2f279f373..ae854a024 100644
--- a/src/api/rest/server/mcis/monitoring.go
+++ b/src/api/rest/server/mcis/monitoring.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -34,7 +36,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/monitoring/install/mcis/{mcisId} [post]
 func RestPostInstallMonitorAgentToMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -61,7 +66,10 @@ func RestPostInstallMonitorAgentToMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/monitoring/status/mcis/{mcisId}/vm/{vmId} [put]
 func RestPutMonitorAgentStatusInstalled(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
@@ -90,7 +98,10 @@ func RestPutMonitorAgentStatusInstalled(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/monitoring/mcis/{mcisId}/metric/{metric} [get]
 func RestGetMonitorData(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	metric := c.Param("metric")
diff --git a/src/api/rest/server/mcis/network.go b/src/api/rest/server/mcis/network.go
index f0730ee18..3d7c7611b 100644
--- a/src/api/rest/server/mcis/network.go
+++ b/src/api/rest/server/mcis/network.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -34,7 +36,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/network/mcis/{mcisId} [post]
 func RestPostConfigureCloudAdaptiveNetworkToMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -61,7 +66,10 @@ func RestPostConfigureCloudAdaptiveNetworkToMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/network/mcis/{mcisId} [put]
 func RestPutInjectCloudInformationForCloudAdaptiveNetwork(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
diff --git a/src/api/rest/server/mcis/nlb.go b/src/api/rest/server/mcis/nlb.go
index 6f7431133..aeee19c7c 100644
--- a/src/api/rest/server/mcis/nlb.go
+++ b/src/api/rest/server/mcis/nlb.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -35,7 +37,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb [post]
 func RestPostNLB(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -64,7 +69,10 @@ func RestPostNLB(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/mcSwNlb [post]
 func RestPostMcNLB(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -116,7 +124,10 @@ func RestPutNLB(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb/{nlbId} [get]
 func RestGetNLB(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	resourceId := c.Param("resourceId")
@@ -146,7 +157,10 @@ type RestGetAllNLBResponse struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb [get]
 func RestGetAllNLB(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -188,7 +202,10 @@ func RestGetAllNLB(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb/{nlbId} [delete]
 func RestDelNLB(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	resourceId := c.Param("resourceId")
@@ -213,7 +230,10 @@ func RestDelNLB(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb [delete]
 func RestDelAllNLB(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -238,7 +258,10 @@ func RestDelAllNLB(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb/{nlbId}/healthz [get]
 func RestGetNLBHealth(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	resourceId := c.Param("resourceId")
@@ -264,7 +287,10 @@ func RestGetNLBHealth(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb/{nlbId}/vm [post]
 func RestAddNLBVMs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	resourceId := c.Param("resourceId")
@@ -291,7 +317,10 @@ func RestAddNLBVMs(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/nlb/{nlbId}/vm [delete]
 func RestRemoveNLBVMs(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	resourceId := c.Param("resourceId")
diff --git a/src/api/rest/server/mcis/orchestration.go b/src/api/rest/server/mcis/orchestration.go
index 69a1ddd86..634996407 100644
--- a/src/api/rest/server/mcis/orchestration.go
+++ b/src/api/rest/server/mcis/orchestration.go
@@ -16,6 +16,7 @@ package mcis
 
 import (
 	"fmt"
+	"net/http"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
@@ -36,7 +37,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/policy/mcis/{mcisId} [post]
 func RestPostMcisPolicy(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -62,7 +66,10 @@ func RestPostMcisPolicy(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/policy/mcis/{mcisId} [get]
 func RestGetMcisPolicy(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
@@ -97,7 +104,10 @@ type RestGetAllMcisPolicyResponse struct {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/policy/mcis [get]
 func RestGetAllMcisPolicy(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	fmt.Println("[Get MCIS Policy List]")
 
@@ -142,7 +152,10 @@ func RestPutMcisPolicy(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/policy/mcis/{mcisId} [delete]
 func RestDelMcisPolicy(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -162,7 +175,10 @@ func RestDelMcisPolicy(c echo.Context) error {
 // @Failure 404 {object} common.SimpleMsg
 // @Router /ns/{nsId}/policy/mcis [delete]
 func RestDelAllMcisPolicy(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	result, err := mcis.DelAllMcisPolicy(nsId)
 	return common.EndRequestWithLog(c, reqID, err, result)
diff --git a/src/api/rest/server/mcis/provisioning.go b/src/api/rest/server/mcis/provisioning.go
index 6307a720a..880f78605 100644
--- a/src/api/rest/server/mcis/provisioning.go
+++ b/src/api/rest/server/mcis/provisioning.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -33,7 +35,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis [post]
 func RestPostMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	req := &mcis.TbMcisReq{}
@@ -59,7 +64,10 @@ func RestPostMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/registerCspVm [post]
 func RestPostRegisterCSPNativeVM(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	req := &mcis.TbMcisReq{}
@@ -84,7 +92,10 @@ func RestPostRegisterCSPNativeVM(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /systemMcis [post]
 func RestPostSystemMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	option := c.QueryParam("option")
 
 	req := &mcis.TbMcisDynamicReq{}
@@ -109,7 +120,10 @@ func RestPostSystemMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcisDynamic [post]
 func RestPostMcisDynamic(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 
 	req := &mcis.TbMcisDynamicReq{}
@@ -135,7 +149,10 @@ func RestPostMcisDynamic(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vmDynamic [post]
 func RestPostMcisVmDynamic(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -160,7 +177,10 @@ func RestPostMcisVmDynamic(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /mcisDynamicCheckRequest [post]
 func RestPostMcisDynamicCheckRequest(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	req := &mcis.McisConnectionConfigCandidatesReq{}
 	if err := c.Bind(req); err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
@@ -184,7 +204,10 @@ func RestPostMcisDynamicCheckRequest(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm [post]
 func RestPostMcisVm(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -211,7 +234,10 @@ func RestPostMcisVm(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/subgroup/{subgroupId} [post]
 func RestPostMcisSubGroupScaleOut(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	subgroupId := c.Param("subgroupId")
diff --git a/src/api/rest/server/mcis/recommendation.go b/src/api/rest/server/mcis/recommendation.go
index 6095ee8d5..7a1d43107 100644
--- a/src/api/rest/server/mcis/recommendation.go
+++ b/src/api/rest/server/mcis/recommendation.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -32,7 +34,10 @@ import (
 // @Failure 500 {object} common.SimpleMsg
 // @Router /mcisRecommendVm [post]
 func RestRecommendVm(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := common.SystemCommonNs
 
 	u := &mcis.DeploymentPlan{}
diff --git a/src/api/rest/server/mcis/remoteCommand.go b/src/api/rest/server/mcis/remoteCommand.go
index 8715ed643..caa921453 100644
--- a/src/api/rest/server/mcis/remoteCommand.go
+++ b/src/api/rest/server/mcis/remoteCommand.go
@@ -15,6 +15,8 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
@@ -31,12 +33,16 @@ import (
 // @Param mcisCmdReq body mcis.McisCmdReq true "MCIS Command Request"
 // @Param subGroupId query string false "subGroupId to apply the command only for VMs in subGroup of MCIS" default(g1)
 // @Param vmId query string false "vmId to apply the command only for a VM in MCIS" default(g1-1)
+// @Param x-request-id header string false "Custom request ID"
 // @Success 200 {object} mcis.McisSshCmdResult
 // @Failure 404 {object} common.SimpleMsg
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/cmd/mcis/{mcisId} [post]
 func RestPostCmdMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
@@ -45,23 +51,23 @@ func RestPostCmdMcis(c echo.Context) error {
 
 	req := &mcis.McisCmdReq{}
 	if err := c.Bind(req); err != nil {
-		return err
+		return common.EndRequestWithLog(c, reqID, err, nil)
 	}
 
-	resultArray, err := mcis.RemoteCommandToMcis(nsId, mcisId, subGroupId, vmId, req)
+	output, err := mcis.RemoteCommandToMcis(nsId, mcisId, subGroupId, vmId, req)
 	if err != nil {
 		return common.EndRequestWithLog(c, reqID, err, nil)
 	}
 
-	content := mcis.McisSshCmdResult{}
+	result := mcis.McisSshCmdResult{}
 
-	for _, v := range resultArray {
-		content.Results = append(content.Results, v)
+	for _, v := range output {
+		result.Results = append(result.Results, v)
 	}
 
-	common.PrintJsonPretty(content)
+	common.PrintJsonPretty(result)
 
-	return common.EndRequestWithLog(c, reqID, nil, content)
+	return common.EndRequestWithLog(c, reqID, err, result)
 
 }
 
@@ -80,7 +86,10 @@ func RestPostCmdMcis(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{targetVmId}/bastion/{bastionVmId} [put]
 func RestSetBastionNodes(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	targetVmId := c.Param("targetVmId")
@@ -104,7 +113,10 @@ func RestSetBastionNodes(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/vm/{targetVmId}/bastion [get]
 func RestGetBastionNodes(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	targetVmId := c.Param("targetVmId")
@@ -127,7 +139,10 @@ func RestGetBastionNodes(c echo.Context) error {
 // @Failure 500 {object} common.SimpleMsg
 // @Router /ns/{nsId}/mcis/{mcisId}/bastion/{bastionVmId} [delete]
 func RestRemoveBastionNodes(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	bastionVmId := c.Param("bastionVmId")
diff --git a/src/api/rest/server/mcis/utility.go b/src/api/rest/server/mcis/utility.go
index 701717ab3..fdf206dbb 100644
--- a/src/api/rest/server/mcis/utility.go
+++ b/src/api/rest/server/mcis/utility.go
@@ -15,13 +15,18 @@ limitations under the License.
 package mcis
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/mcis"
 	"github.com/labstack/echo/v4"
 )
 
 func RestCheckMcis(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 
@@ -36,7 +41,10 @@ func RestCheckMcis(c echo.Context) error {
 }
 
 func RestCheckVm(c echo.Context) error {
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 	nsId := c.Param("nsId")
 	mcisId := c.Param("mcisId")
 	vmId := c.Param("vmId")
diff --git a/src/api/rest/server/util/netuil.go b/src/api/rest/server/util/netuil.go
index bd8d8ba78..b52becbcf 100644
--- a/src/api/rest/server/util/netuil.go
+++ b/src/api/rest/server/util/netuil.go
@@ -1,6 +1,8 @@
 package netutil
 
 import (
+	"net/http"
+
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	"github.com/cloud-barista/cb-tumblebug/src/core/common/netutil"
 	"github.com/labstack/echo/v4"
@@ -28,7 +30,10 @@ type RestPostUtilToDesignNetworkReponse struct {
 func RestPostUtilToDesignNetwork(c echo.Context) error {
 
 	// ID for API request tracing
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	// Bind the request body to SubnettingRequest struct
 	subnettingReq := new(netutil.SubnettingRequest)
@@ -63,7 +68,10 @@ type RestPostUtilToValidateNetworkRequest struct {
 func RestPostUtilToValidateNetwork(c echo.Context) error {
 
 	// ID for API request tracing
-	reqID := common.StartRequestWithLog(c)
+	reqID, idErr := common.StartRequestWithLog(c)
+	if idErr != nil {
+		return c.JSON(http.StatusBadRequest, map[string]string{"message": idErr.Error()})
+	}
 
 	// Bind the request body to SubnettingRequest struct
 	req := new(netutil.NetworkConfig)
diff --git a/src/core/common/client.go b/src/core/common/client.go
index f8be2932c..081ec2699 100644
--- a/src/core/common/client.go
+++ b/src/core/common/client.go
@@ -209,15 +209,22 @@ func ExtractRequestInfo(r *http.Request) RequestInfo {
 }
 
 // StartRequestWithLog initializes request tracking details
-func StartRequestWithLog(c echo.Context) string {
-	reqID := fmt.Sprintf("%d", time.Now().UnixNano())
+func StartRequestWithLog(c echo.Context) (string, error) {
+	reqID := c.Request().Header.Get("x-request-id")
+	if reqID == "" {
+		reqID = fmt.Sprintf("%d", time.Now().UnixNano())
+	}
+	if _, ok := RequestMap.Load(reqID); ok {
+		return reqID, fmt.Errorf("The x-request-id is already in use")
+	}
+
 	details := RequestDetails{
 		StartTime:   time.Now(),
 		Status:      "Handling",
 		RequestInfo: ExtractRequestInfo(c.Request()),
 	}
 	RequestMap.Store(reqID, details)
-	return reqID
+	return reqID, nil
 }
 
 // EndRequestWithLog updates the request details and sends the final response.
diff --git a/src/core/mcir/spec.go b/src/core/mcir/spec.go
index fc42899bc..4e19dece4 100644
--- a/src/core/mcir/spec.go
+++ b/src/core/mcir/spec.go
@@ -21,7 +21,8 @@ import (
 	"strconv"
 	"time"
 
-	//"strings"
+	"strings"
+	"unicode"
 
 	"github.com/cloud-barista/cb-tumblebug/src/core/common"
 	validator "github.com/go-playground/validator/v10"
@@ -706,9 +707,13 @@ func FilterSpecsByRange(nsId string, filter FilterSpecsByRangeRequest) ([]TbSpec
 		sqlQuery = sqlQuery.And("ProviderName LIKE ?", "%"+filter.ProviderName+"%")
 	}
 	if filter.CspSpecName != "" {
-		//sqlQuery += " AND `cspSpecName` LIKE '%" + filter.CspSpecName + "%'"
-		filter.CspSpecName = ToNamingRuleCompatible(filter.CspSpecName)
-		sqlQuery = sqlQuery.And("CspSpecName LIKE ?", "%"+filter.CspSpecName+"%")
+		keywords := strings.FieldsFunc(filter.CspSpecName, func(r rune) bool {
+			return !unicode.IsLetter(r) && !unicode.IsNumber(r)
+		})
+
+		for _, keyword := range keywords {
+			sqlQuery = sqlQuery.And("CspSpecName LIKE ?", "%"+keyword+"%")
+		}
 	}
 	if filter.OsType != "" {
 		//sqlQuery += " AND `osType` LIKE '%" + filter.OsType + "%'"