HDFS-8388. Time and Date format need to be in sync in NameNode UI page. Contributed by Surendra Singh Lilhore.

hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md

@@ -192,6 +192,8 @@ Each metrics record contains tags such as ProcessName, SessionId, and Hostname a
 | `PutImageNumOps` | Total number of fsimage uploads to SecondaryNameNode |
 | `PutImageAvgTime` | Average fsimage upload time in milliseconds |
 | `TotalFileOps`| Total number of file operations performed |
+| `NNStarted`| NameNode start time |
+| `NNStartedTimeInMillis`| NameNode start time in milliseconds |
 
 FSNamesystem
 ------------

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -1270,6 +1270,9 @@ Release 2.8.0 - UNRELEASED
     HDFS-8950. NameNode refresh doesn't remove DataNodes that are no longer in
     the allowed list (Daniel Templeton)
 
+    HDFS-8388. Time and Date format need to be in sync in NameNode UI page.
+    (Surendra Singh Lilhore via aajisaka)
+
 Release 2.7.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

@@ -6131,6 +6131,11 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
     return getStartTime().toString();
   }
 
+  @Override // NameNodeMXBean
+  public long getNNStartedTimeInMillis() {
+    return startTime;
+  }
+
   @Override  // NameNodeMXBean
   public String getCompileInfo() {
     return VersionInfo.getDate() + " by " + VersionInfo.getUser() +

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeMXBean.java

@@ -238,6 +238,12 @@ public interface NameNodeMXBean {
    */
   public String getNNStarted();
 
+  /**
+   * Gets the NN start time in milliseconds.
+   * @return the NN start time in msec
+   */
+  long getNNStartedTimeInMillis();
+
   /**
    * Get the compilation information which contains date, user and branch
    *

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfshealth.html

@@ -130,9 +130,9 @@
   <tr><th>Namenode ID:</th><td>{NamenodeID}</td></tr>
 {/HAInfo}
 {#nn}
-  <tr><th>Started:</th><td>{NNStarted}</td></tr>
+  <tr><th>Started:</th><td>{NNStartedTimeInMillis|date_tostring}</td></tr>
   <tr><th>Version:</th><td>{Version}</td></tr>
-  <tr><th>Compiled:</th><td>{CompileInfo}</td></tr>
+  <tr><th>Compiled:</th><td>{CompileInfo|format_compile_info}</td></tr>
   <tr><th>Cluster ID:</th><td>{ClusterId}</td></tr>
   <tr><th>Block Pool ID:</th><td>{BlockPoolId}</td></tr>
 {/nn}
@@ -423,7 +423,6 @@ There are no reported volume failures.
 </script><script type="text/javascript" src="/static/bootstrap-3.0.2/js/bootstrap.min.js">
 </script><script type="text/javascript" src="/static/dataTables.bootstrap.js">
 </script><script type="text/javascript" src="/static/moment.min.js">
-</script><script type="text/javascript" src="/static/moment.min.js">
 </script><script type="text/javascript" src="/static/dust-full-2.0.0.min.js">
 </script><script type="text/javascript" src="/static/dust-helpers-1.1.1.min.js">
 </script><script type="text/javascript" src="/static/dfs-dust.js">

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/dfshealth.js

@@ -57,7 +57,7 @@
 
       'helper_date_tostring' : function (chunk, ctx, bodies, params) {
         var value = dust.helpers.tap(params.value, chunk, ctx);
-        return chunk.write('' + new Date(Number(value)).toLocaleString());
+        return chunk.write('' + moment(Number(value)).format('ddd MMM DD HH:mm:ss ZZ YYYY'));
       }
     };
 
@@ -175,7 +175,7 @@
     var HELPERS = {
       'helper_relative_time' : function (chunk, ctx, bodies, params) {
         var value = dust.helpers.tap(params.value, chunk, ctx);
-        return chunk.write(moment().subtract(Number(value), 'seconds').format('YYYY-MM-DD HH:mm:ss'));
+        return chunk.write(moment().subtract(Number(value), 'seconds').format('ddd MMM DD HH:mm:ss ZZ YYYY'));
       },
       'helper_usage_bar' : function (chunk, ctx, bodies, params) {
         var value = dust.helpers.tap(params.value, chunk, ctx);
@@ -262,7 +262,7 @@
     var HELPERS = {
       'helper_date_tostring' : function (chunk, ctx, bodies, params) {
         var value = dust.helpers.tap(params.value, chunk, ctx);
-        return chunk.write('' + new Date(Number(value)).toLocaleString());
+        return chunk.write('' + moment(Number(value)).format('ddd MMM DD HH:mm:ss ZZ YYYY'));
       }
     };
 

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/explorer.html

@@ -199,6 +199,7 @@
     </script><script type="text/javascript" src="/static/dust-helpers-1.1.1.min.js">
     </script><script type="text/javascript" src="/static/dfs-dust.js">
     </script><script type="text/javascript" src="explorer.js">
+    </script><script type="text/javascript" src="/static/moment.min.js">
     </script>
   </body>
 </html>

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/explorer.js

@@ -146,7 +146,7 @@
     var HELPERS = {
       'helper_date_tostring' : function (chunk, ctx, bodies, params) {
         var value = dust.helpers.tap(params.value, chunk, ctx);
-        return chunk.write('' + new Date(Number(value)).toLocaleString());
+        return chunk.write('' + moment(Number(value)).format('ddd MMM DD HH:mm:ss ZZ YYYY'));
       }
     };
     var url = '/webhdfs/v1' + encode_path(dir) + '?op=LISTSTATUS';

hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/static/dfs-dust.js

@@ -58,7 +58,13 @@
     },
 
     'date_tostring' : function (v) {
-      return new Date(Number(v)).toLocaleString();
+      return moment(Number(v)).format('ddd MMM DD HH:mm:ss ZZ YYYY');
+    },
+
+    'format_compile_info' : function (v) {
+      var info = v.split(" by ")
+      var date = moment(info[0]).format('ddd MMM DD HH:mm:ss ZZ YYYY');
+      return date.concat(" by ").concat(info[1]);
      },
 
     'helper_to_permission': function (v) {