001 package org.apache.hadoop.hdfs.server.namenode;
002
003 import javax.servlet.*;
004 import javax.servlet.http.*;
005 import javax.servlet.jsp.*;
006 import org.apache.hadoop.util.ServletUtil;
007 import org.apache.hadoop.ha.HAServiceProtocol.HAServiceState;
008
009 public 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(" ");
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. <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 }