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Wed, Feb 26, 23:16

dfshealth.jsp
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<%
/*
* 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.
*/
%>
<%@ page
contentType="text/html; charset=UTF-8"
import="org.apache.hadoop.util.ServletUtil"
import="org.apache.hadoop.ha.HAServiceProtocol.HAServiceState"
%>
<%!
//for java.io.Serializable
private static final long serialVersionUID = 1L;
%>
<%
final NamenodeJspHelper.HealthJsp healthjsp = new NamenodeJspHelper.HealthJsp();
NameNode nn = NameNodeHttpServer.getNameNodeFromContext(application);
FSNamesystem fsn = nn.getNamesystem();
HAServiceState nnHAState = nn.getServiceState();
boolean isActive = (nnHAState == HAServiceState.ACTIVE);
String namenodeRole = nn.getRole().toString();
String namenodeState = nnHAState.toString();
String namenodeLabel = NamenodeJspHelper.getNameNodeLabel(nn);
%>
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="/static/hadoop.css">
<title>Hadoop <%=namenodeRole%>&nbsp;<%=namenodeLabel%></title>
</head>
<body>
<h1><%=namenodeRole%> '<%=namenodeLabel%>' (<%=namenodeState%>)</h1>
<%= NamenodeJspHelper.getVersionTable(fsn) %>
<br />
<% if (isActive && fsn != null) { %>
<b><a href="/nn_browsedfscontent.jsp">Browse the filesystem</a></b><br>
<% } %>
<b><a href="/logs/"><%=namenodeRole%> Logs</a></b>
<hr>
<h3>Cluster Summary</h3>
<b> <%= NamenodeJspHelper.getSecurityModeText()%> </b>
<b> <%= NamenodeJspHelper.getSafeModeText(fsn)%> </b>
<b> <%= NamenodeJspHelper.getRollingUpgradeText(fsn)%> </b>
<b> <%= NamenodeJspHelper.getInodeLimitText(fsn)%> </b>
<%= NamenodeJspHelper.getCorruptFilesWarning(fsn)%>
<% healthjsp.generateHealthReport(out, nn, request); %>
<% healthjsp.generateJournalReport(out, nn, request); %>
<hr/>
<% healthjsp.generateConfReport(out, nn, request); %>
<hr/>
<h3>Snapshot Summary</h3>
<% NamenodeJspHelper.generateSnapshotReport(out, fsn); %>
<hr/>
<h3>Startup Progress</h3>
<% healthjsp.generateStartupProgress(out, nn.getStartupProgress()); %>
<hr/><p><a href="http://hadoop.apache.org/core">Hadoop</a>, 2013.&nbsp;<a href="dfshealth.html">New UI</a></p>
</body>
</html>

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