001package org.apache.hadoop.hdfs.server.namenode;
002
003import javax.servlet.*;
004import javax.servlet.http.*;
005import javax.servlet.jsp.*;
006import org.apache.hadoop.util.ServletUtil;
007import org.apache.hadoop.ha.HAServiceProtocol.HAServiceState;
008
009public final class dfshealth_jsp extends org.apache.jasper.runtime.HttpJspBase
010    implements org.apache.jasper.runtime.JspSourceDependent {
011
012
013  //for java.io.Serializable
014  private static final long serialVersionUID = 1L;
015
016  private static java.util.List _jspx_dependants;
017
018  public Object getDependants() {
019    return _jspx_dependants;
020  }
021
022  public void _jspService(HttpServletRequest request, HttpServletResponse response)
023        throws java.io.IOException, ServletException {
024
025    JspFactory _jspxFactory = null;
026    PageContext pageContext = null;
027    HttpSession session = null;
028    ServletContext application = null;
029    ServletConfig config = null;
030    JspWriter out = null;
031    Object page = this;
032    JspWriter _jspx_out = null;
033    PageContext _jspx_page_context = null;
034
035
036    try {
037      _jspxFactory = JspFactory.getDefaultFactory();
038      response.setContentType("text/html; charset=UTF-8");
039      pageContext = _jspxFactory.getPageContext(this, request, response,
040                        null, true, 8192, true);
041      _jspx_page_context = pageContext;
042      application = pageContext.getServletContext();
043      config = pageContext.getServletConfig();
044      session = pageContext.getSession();
045      out = pageContext.getOut();
046      _jspx_out = out;
047
048
049/*
050 * Licensed to the Apache Software Foundation (ASF) under one
051 * or more contributor license agreements.  See the NOTICE file 
052 * distributed with this work for additional information
053 * regarding copyright ownership.  The ASF licenses this file
054 * to you under the Apache License, Version 2.0 (the
055 * "License"); you may not use this file except in compliance
056 * with the License.  You may obtain a copy of the License at
057 *
058 *     http://www.apache.org/licenses/LICENSE-2.0
059 *
060 * Unless required by applicable law or agreed to in writing, software
061 * distributed under the License is distributed on an "AS IS" BASIS,
062 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
063 * See the License for the specific language governing permissions and
064 * limitations under the License.
065 */
066
067
068  final NamenodeJspHelper.HealthJsp healthjsp  = new NamenodeJspHelper.HealthJsp();
069  NameNode nn = NameNodeHttpServer.getNameNodeFromContext(application);
070  FSNamesystem fsn = nn.getNamesystem();
071  HAServiceState nnHAState = nn.getServiceState();
072  boolean isActive = (nnHAState == HAServiceState.ACTIVE);
073  String namenodeRole = nn.getRole().toString();
074  String namenodeState = nnHAState.toString();
075  String namenodeLabel = NamenodeJspHelper.getNameNodeLabel(nn);
076
077      out.write("<!DOCTYPE html>\n<html>\n<head>\n<link rel=\"stylesheet\" type=\"text/css\" href=\"/static/hadoop.css\">\n<title>Hadoop ");
078      out.print(namenodeRole);
079      out.write("&nbsp;");
080      out.print(namenodeLabel);
081      out.write("</title>\n</head>    \n<body>\n<h1>");
082      out.print(namenodeRole);
083      out.write(' ');
084      out.write('\'');
085      out.print(namenodeLabel);
086      out.write('\'');
087      out.write(' ');
088      out.write('(');
089      out.print(namenodeState);
090      out.write(")</h1>\n");
091      out.print( NamenodeJspHelper.getVersionTable(fsn) );
092      out.write("<br />\n");
093 if (isActive && fsn != null) { 
094      out.write("<b><a href=\"/nn_browsedfscontent.jsp\">Browse the filesystem</a></b><br>\n");
095 } 
096      out.write("<b><a href=\"/logs/\">");
097      out.print(namenodeRole);
098      out.write(" Logs</a></b>\n\n<hr>\n<h3>Cluster Summary</h3>\n<b> ");
099      out.print( NamenodeJspHelper.getSecurityModeText());
100      out.write("</b>\n<b> ");
101      out.print( NamenodeJspHelper.getSafeModeText(fsn));
102      out.write("</b>\n<b> ");
103      out.print( NamenodeJspHelper.getRollingUpgradeText(fsn));
104      out.write("</b>\n<b> ");
105      out.print( NamenodeJspHelper.getInodeLimitText(fsn));
106      out.write("</b>\n");
107      out.print( NamenodeJspHelper.getCorruptFilesWarning(fsn));
108 healthjsp.generateHealthReport(out, nn, request); 
109 healthjsp.generateJournalReport(out, nn, request); 
110      out.write("<hr/>\n");
111 healthjsp.generateConfReport(out, nn, request); 
112      out.write("<hr/>\n<h3>Snapshot Summary</h3>\n");
113 NamenodeJspHelper.generateSnapshotReport(out, fsn); 
114      out.write("<hr/>\n<h3>Startup Progress</h3>\n");
115 healthjsp.generateStartupProgress(out, nn.getStartupProgress()); 
116      out.write("<hr/><p><a href=\"http://hadoop.apache.org/core\">Hadoop</a>, 2013.&nbsp;<a href=\"dfshealth.html\">New UI</a></p>\n</body>\n</html>\n");
117    } catch (Throwable t) {
118      if (!(t instanceof SkipPageException)){
119        out = _jspx_out;
120        if (out != null && out.getBufferSize() != 0)
121          out.clearBuffer();
122        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
123      }
124    } finally {
125      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
126    }
127  }
128}