Monitor resources size

fizz-common/pom.xml

@@ -17,6 +17,11 @@
     </properties>
 
     <dependencies>
+        <dependency>
+            <groupId>org.openjdk.jol</groupId>
+            <artifactId>jol-core</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-context</artifactId>

fizz-common/src/main/java/we/util/Consts.java

@@ -101,6 +101,12 @@ public final class Consts {
         public static final String PROD    = "prod";
     }
 
+    public static final class UN {
+        public static final int KB = 1024;
+        public static final int MB = 1024 * KB;
+        public static final int GB = 1024 * MB;
+    }
+
     public static final String HTTP_SERVER   = "http_server";
     public static final String HTTP_CLIENT   = "http_client";
     public static final String MYSQL         = "mysql";