HBASE-24653 Show snapshot owner on Master WebUI (#2016)

Signed-off-by: Guanghao Zhang <zghao@apache.org>

hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon

@@ -60,6 +60,7 @@ org.apache.hadoop.hbase.tool.CanaryTool;
 org.apache.hadoop.hbase.util.Bytes;
 org.apache.hadoop.hbase.util.CommonFSUtils;
 org.apache.hadoop.hbase.util.JvmVersion;
+org.apache.hadoop.hbase.util.PrettyPrinter;
 org.apache.hadoop.util.StringUtils;
 </%import>
 
@@ -663,6 +664,8 @@ AssignmentManager assignmentManager = master.getAssignmentManager();
         <th>Snapshot Name</th>
         <th>Table</th>
         <th>Creation Time</th>
+        <th>Owner</th>
+        <th>TTL</th>
     </tr>
     <%for SnapshotDescription snapshotDesc : snapshots%>
     <%java>
@@ -673,6 +676,11 @@ AssignmentManager assignmentManager = master.getAssignmentManager();
         <td><a href="table.jsp?name=<% snapshotTable.getNameAsString() %>"><% snapshotTable.getNameAsString() %></a>
         </td>
         <td><% new Date(snapshotDesc.getCreationTime()) %></td>
+        <td><% snapshotDesc.getOwner() %></td>
+
+        <td>
+          <% snapshotDesc.getTtl() == 0 ? "FOREVER": PrettyPrinter.format(String.valueOf(snapshotDesc.getTtl()), PrettyPrinter.Unit.TIME_INTERVAL) %>
+        </td>
     </tr>
     </%for>
     <p><% snapshots.size() %> snapshot(s) in set. [<a href="/snapshotsStats.jsp">Snapshot Storefile stats</a>]</p>

hbase-server/src/main/resources/hbase-webapps/master/snapshotsStats.jsp

@@ -30,6 +30,7 @@
   import="org.apache.hadoop.util.StringUtils"
   import="org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription"
 %>
+<%@ page import="org.apache.hadoop.hbase.util.PrettyPrinter" %>
 <%
   HMaster master = (HMaster)getServletContext().getAttribute(HMaster.MASTER);
   Configuration conf = master.getConfiguration();
@@ -65,7 +66,8 @@
         <th>Snapshot Name</th>
         <th>Table</th>
         <th>Creation Time</th>
-        <th>TTL(Sec)</th>
+        <th>Owner</th>
+        <th>TTL</th>
         <th>Shared Storefile Size</th>
         <th>Mob Storefile Size</th>
         <th>Archived Storefile Size</th>
@@ -83,11 +85,13 @@
       <td><a href="/table.jsp?name=<%= snapshotTable.getNameAsString() %>">
         <%= snapshotTable.getNameAsString() %></a></td>
       <td><%= new Date(snapshotDesc.getCreationTime()) %></td>
+      <td><%= snapshotDesc.getOwner() %></td>
       <td>
         <% if (snapshotDesc.getTtl() == 0) { %>
         FOREVER
         <% } else { %>
-          <%= snapshotDesc.getTtl() %>
+        <%=PrettyPrinter
+          .format(String.valueOf(snapshotDesc.getTtl()), PrettyPrinter.Unit.TIME_INTERVAL)%>
         <% } %>
       </td>
       <td><%= StringUtils.humanReadableInt(stats.getSharedStoreFilesSize()) %></td>