HBASE-3839 Add monitoring of currently running tasks to the master and RS web UIs

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1099202 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -237,6 +237,8 @@ Release 0.91.0 - Unreleased
    HBASE-3836  Add facility to track currently progressing actions and
                workflows. (todd)
    HBASE-3837  Show regions in transition on the master web page (todd)
+   HBASE-3839  Add monitoring of currently running tasks to the master and
+               RS web UIs
 
 Release 0.90.3 - Unreleased
 

src/main/jamon/org/apache/hbase/tmpl/common/TaskMonitorTmpl.jamon

@@ -0,0 +1,59 @@
+<%doc>
+Copyright 2011 The Apache Software Foundation
+
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+</%doc>
+<%import>
+java.util.*;
+org.apache.hadoop.hbase.monitoring.*;
+</%import>
+<%args>
+TaskMonitor taskMonitor = TaskMonitor.get();
+</%args>
+<%java>
+long now = System.currentTimeMillis();
+List<MonitoredTask> tasks = taskMonitor.getTasks();
+Collections.reverse(tasks);
+
+</%java>
+<h2>Currently running tasks</h2>
+
+<%if tasks.isEmpty()%>
+No tasks currently running on this node.
+<%else>
+
+<table>
+<tr>
+  <th>Description</th>
+  <th>Status</th>
+  <th>Age</th>
+</tr>
+<%for MonitoredTask task : tasks %>
+<tr class="task-monitor-<% task.getState() %>">
+  <td><% task.getDescription() %></td>
+  </td>
+  <td><% task.getStatus() %></td>
+  <td><% (int)((now - task.getStartTime())/1000) %>s  
+  <%if task.getCompletionTimestamp() != -1%>
+  (Completed <% (now - task.getCompletionTimestamp())/1000 %>s ago)
+  </%if>
+  </td>
+</tr>
+</%for>
+</table>
+
+</%if>

src/main/jamon/org/apache/hbase/tmpl/master/MasterStatusTmpl.jamon

@@ -88,6 +88,9 @@ org.apache.hadoop.hbase.HTableDescriptor;
 </%if>
 <tr><td>Zookeeper Quorum</td><td><% master.getZooKeeperWatcher().getQuorum() %></td><td>Addresses of all registered ZK servers. For more, see <a href="/zk.jsp">zk dump</a>.</td></tr>
 </table>
+
+<& ../common/TaskMonitorTmpl &>
+
 <%if (rootLocation != null) %>
 <& catalogTables &>
 </%if>

src/main/jamon/org/apache/hbase/tmpl/regionserver/RSStatusTmpl.jamon

@@ -68,6 +68,8 @@ org.apache.hadoop.hbase.HRegionInfo;
 <tr><td>Zookeeper Quorum</td><td><% regionServer.getZooKeeper().getQuorum() %></td><td>Addresses of all registered ZK servers</td></tr>
 </table>
 
+<& ../common/TaskMonitorTmpl &>
+
 <h2>Online Regions</h2>
 <%if (onlineRegions != null && onlineRegions.size() > 0) %>
 <table>

src/main/resources/hbase-webapps/static/hbase.css

@@ -17,3 +17,11 @@ div.warning {
 td.undeployed-region {
   background-color: #faa;
 }
+
+tr.task-monitor-COMPLETE td {
+  background-color: #afa;
+}
+
+tr.task-monitor-ABORTED td {
+  background-color: #ffa;
+}