diff --git a/source/tools/monitor/mservice/master/modules/mod_cgroup.c b/source/tools/monitor/mservice/master/modules/mod_cgroup.c
index 0f6057dffa1b2d963dbc89d118d7f1f9e27b79fa..1ad6c6e69620bba7f508adf5f597b7b8469575f6 100644
--- a/source/tools/monitor/mservice/master/modules/mod_cgroup.c
+++ b/source/tools/monitor/mservice/master/modules/mod_cgroup.c
@@ -210,6 +210,15 @@ static void init_cgroups(void)
 
 	memset(cgroups, 0, sizeof(cgroups));
 	n_cgs = 0;
+
+	/*check docker exit*/
+	if (access("/bin/docker", F_OK) != F_OK &&
+		access("/usr/bin/docker", F_OK) != F_OK &&
+		access("/bin/docker", F_OK) != F_OK &&
+		access("/usr/bin/docker", F_OK) != F_OK) {
+		return;
+	}
+
 	result = popen("docker ps -q", "r");
 	for (i = 0; i < MAX_CGROUPS && !feof(result); i++) {
 		if (feof(result) || !fgets(buffer, sizeof(buffer), result))
diff --git a/source/tools/monitor/mservice/master/src/output_print.c b/source/tools/monitor/mservice/master/src/output_print.c
index 08e38145d7143a674bceb8c0e5f1a3469b8c7270..262af1f333a14d8f35fcf4f72043b1b0aae5edaf 100644
--- a/source/tools/monitor/mservice/master/src/output_print.c
+++ b/source/tools/monitor/mservice/master/src/output_print.c
@@ -145,6 +145,8 @@ printf_result(double result)
         printf("%5.1f%s", result / 1024 / 1024 / 1024, "G");
     } else if ((1000 - result / 1024 / 1024 / 1024 / 1024) > 0.1) {
         printf("%5.1f%s", result / 1024 / 1024 / 1024 / 1024, "T");
+    } else {
+        printf("------");
     }
     printf("%s", PRINT_DATA_SPLIT);
 }