1 | package org.apache.hadoop.hdfs.server.namenode; |
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2 | |
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3 | import javax.servlet.*; |
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4 | import javax.servlet.http.*; |
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5 | import javax.servlet.jsp.*; |
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6 | import javax.servlet.*; |
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7 | import javax.servlet.http.*; |
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8 | import java.io.*; |
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9 | import java.util.*; |
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10 | import org.apache.hadoop.fs.*; |
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11 | import org.apache.hadoop.hdfs.*; |
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12 | import org.apache.hadoop.hdfs.server.common.*; |
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13 | import org.apache.hadoop.hdfs.server.namenode.*; |
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14 | import org.apache.hadoop.hdfs.server.datanode.*; |
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15 | import org.apache.hadoop.hdfs.protocol.*; |
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16 | import org.apache.hadoop.util.*; |
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17 | import java.text.DateFormat; |
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18 | import java.lang.Math; |
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19 | import java.net.URLEncoder; |
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20 | |
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21 | public final class dfsnodelist_jsp extends org.apache.jasper.runtime.HttpJspBase |
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22 | implements org.apache.jasper.runtime.JspSourceDependent { |
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23 | |
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24 | |
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25 | JspHelper jspHelper = new JspHelper(); |
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26 | |
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27 | int rowNum = 0; |
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28 | int colNum = 0; |
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29 | |
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30 | String rowTxt() { colNum = 0; |
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31 | return "<tr class=\"" + (((rowNum++)%2 == 0)? "rowNormal" : "rowAlt") |
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32 | + "\"> "; } |
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33 | String colTxt() { return "<td id=\"col" + ++colNum + "\"> "; } |
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34 | void counterReset () { colNum = 0; rowNum = 0 ; } |
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35 | |
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36 | long diskBytes = 1024 * 1024 * 1024; |
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37 | String diskByteStr = "GB"; |
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38 | |
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39 | String sorterField = null; |
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40 | String sorterOrder = null; |
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41 | String whatNodes = "LIVE"; |
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42 | |
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43 | String NodeHeaderStr(String name) { |
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44 | String ret = "class=header"; |
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45 | String order = "ASC"; |
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46 | if ( name.equals( sorterField ) ) { |
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47 | ret += sorterOrder; |
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48 | if ( sorterOrder.equals("ASC") ) |
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49 | order = "DSC"; |
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50 | } |
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51 | ret += " onClick=\"window.document.location=" + |
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52 | "'/dfsnodelist.jsp?whatNodes="+whatNodes+"&sorter/field=" + name + "&sorter/order=" + |
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53 | order + "'\" title=\"sort on this column\""; |
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54 | |
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55 | return ret; |
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56 | } |
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57 | |
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58 | public void generateNodeData( JspWriter out, DatanodeDescriptor d, |
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59 | String suffix, boolean alive, |
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60 | int nnHttpPort ) |
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61 | throws IOException { |
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62 | |
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63 | /* Say the datanode is dn1.hadoop.apache.org with ip 192.168.0.5 |
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64 | we use: |
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65 | 1) d.getHostName():d.getPort() to display. |
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66 | Domain and port are stripped if they are common across the nodes. |
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67 | i.e. "dn1" |
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68 | 2) d.getHost():d.Port() for "title". |
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69 | i.e. "192.168.0.5:50010" |
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70 | 3) d.getHostName():d.getInfoPort() for url. |
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71 | i.e. "http://dn1.hadoop.apache.org:50075/..." |
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72 | Note that "d.getHost():d.getPort()" is what DFS clients use |
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73 | to interact with datanodes. |
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74 | */ |
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75 | // from nn_browsedfscontent.jsp: |
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76 | String url = "http://" + d.getHostName() + ":" + d.getInfoPort() + |
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77 | "/browseDirectory.jsp?namenodeInfoPort=" + |
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78 | nnHttpPort + "&dir=" + |
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79 | URLEncoder.encode("/", "UTF-8"); |
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80 | |
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81 | String name = d.getHostName() + ":" + d.getPort(); |
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82 | if ( !name.matches( "\\d+\\.\\d+.\\d+\\.\\d+.*" ) ) |
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83 | name = name.replaceAll( "\\.[^.:]*", "" ); |
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84 | int idx = (suffix != null && name.endsWith( suffix )) ? |
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85 | name.indexOf( suffix ) : -1; |
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86 | |
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87 | out.print( rowTxt() + "<td class=\"name\"><a title=\"" |
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88 | + d.getHost() + ":" + d.getPort() + |
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89 | "\" href=\"" + url + "\">" + |
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90 | (( idx > 0 ) ? name.substring(0, idx) : name) + "</a>" + |
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91 | (( alive ) ? "" : "\n") ); |
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92 | if ( !alive ) |
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93 | return; |
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94 | |
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95 | long c = d.getCapacity(); |
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96 | long u = d.getDfsUsed(); |
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97 | long nu = d.getNonDfsUsed(); |
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98 | long r = d.getRemaining(); |
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99 | String percentUsed = StringUtils.limitDecimalTo2(d.getDfsUsedPercent()); |
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100 | String percentRemaining = StringUtils.limitDecimalTo2(d.getRemainingPercent()); |
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101 | |
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102 | String adminState = (d.isDecommissioned() ? "Decommissioned" : |
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103 | (d.isDecommissionInProgress() ? "Decommission In Progress": |
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104 | "In Service")); |
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105 | |
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106 | long timestamp = d.getLastUpdate(); |
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107 | long currentTime = System.currentTimeMillis(); |
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108 | out.print("<td class=\"lastcontact\"> " + |
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109 | ((currentTime - timestamp)/1000) + |
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110 | "<td class=\"adminstate\">" + |
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111 | adminState + |
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112 | "<td align=\"right\" class=\"capacity\">" + |
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113 | StringUtils.limitDecimalTo2(c*1.0/diskBytes) + |
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114 | "<td align=\"right\" class=\"used\">" + |
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115 | StringUtils.limitDecimalTo2(u*1.0/diskBytes) + |
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116 | "<td align=\"right\" class=\"nondfsused\">" + |
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117 | StringUtils.limitDecimalTo2(nu*1.0/diskBytes) + |
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118 | "<td align=\"right\" class=\"remaining\">" + |
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119 | StringUtils.limitDecimalTo2(r*1.0/diskBytes) + |
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120 | "<td align=\"right\" class=\"pcused\">" + percentUsed + |
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121 | "<td class=\"pcused\">" + |
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122 | ServletUtil.percentageGraph( (int)Double.parseDouble(percentUsed) , 100) + |
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123 | "<td align=\"right\" class=\"pcremaining`\">" + percentRemaining + |
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124 | "<td title=" + "\"blocks scheduled : " + d.getBlocksScheduled() + |
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125 | "\" class=\"blocks\">" + d.numBlocks() + "\n"); |
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126 | } |
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127 | |
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128 | |
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129 | |
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130 | public void generateDFSNodesList(JspWriter out, |
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131 | NameNode nn, |
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132 | HttpServletRequest request) |
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133 | throws IOException { |
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134 | ArrayList<DatanodeDescriptor> live = new ArrayList<DatanodeDescriptor>(); |
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135 | ArrayList<DatanodeDescriptor> dead = new ArrayList<DatanodeDescriptor>(); |
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136 | jspHelper.DFSNodesStatus(live, dead); |
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137 | |
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138 | whatNodes = request.getParameter("whatNodes"); // show only live or only dead nodes |
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139 | sorterField = request.getParameter("sorter/field"); |
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140 | sorterOrder = request.getParameter("sorter/order"); |
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141 | if ( sorterField == null ) |
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142 | sorterField = "name"; |
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143 | if ( sorterOrder == null ) |
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144 | sorterOrder = "ASC"; |
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145 | |
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146 | jspHelper.sortNodeList(live, sorterField, sorterOrder); |
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147 | jspHelper.sortNodeList(dead, "name", "ASC"); |
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148 | |
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149 | // Find out common suffix. Should this be before or after the sort? |
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150 | String port_suffix = null; |
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151 | if ( live.size() > 0 ) { |
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152 | String name = live.get(0).getName(); |
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153 | int idx = name.indexOf(':'); |
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154 | if ( idx > 0 ) { |
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155 | port_suffix = name.substring( idx ); |
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156 | } |
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157 | |
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158 | for ( int i=1; port_suffix != null && i < live.size(); i++ ) { |
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159 | if ( live.get(i).getName().endsWith( port_suffix ) == false ) { |
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160 | port_suffix = null; |
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161 | break; |
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162 | } |
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163 | } |
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164 | } |
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165 | |
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166 | counterReset(); |
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167 | |
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168 | try { |
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169 | Thread.sleep(1000); |
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170 | } catch (InterruptedException e) {} |
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171 | |
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172 | if (live.isEmpty() && dead.isEmpty()) { |
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173 | out.print("There are no datanodes in the cluster"); |
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174 | } |
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175 | else { |
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176 | |
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177 | int nnHttpPort = nn.getHttpAddress().getPort(); |
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178 | out.print( "<div id=\"dfsnodetable\"> "); |
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179 | if(whatNodes.equals("LIVE")) { |
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180 | |
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181 | out.print( |
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182 | "<a name=\"LiveNodes\" id=\"title\">" + |
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183 | "Live Datanodes : " + live.size() + "</a>" + |
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184 | "<br><br>\n<table border=1 cellspacing=0>\n" ); |
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185 | |
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186 | counterReset(); |
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187 | |
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188 | if ( live.size() > 0 ) { |
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189 | |
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190 | if ( live.get(0).getCapacity() > 1024 * diskBytes ) { |
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191 | diskBytes *= 1024; |
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192 | diskByteStr = "TB"; |
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193 | } |
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194 | |
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195 | out.print( "<tr class=\"headerRow\"> <th " + |
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196 | NodeHeaderStr("name") + "> Node <th " + |
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197 | NodeHeaderStr("lastcontact") + "> Last <br>Contact <th " + |
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198 | NodeHeaderStr("adminstate") + "> Admin State <th " + |
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199 | NodeHeaderStr("capacity") + "> Configured <br>Capacity (" + |
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200 | diskByteStr + ") <th " + |
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201 | NodeHeaderStr("used") + "> Used <br>(" + |
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202 | diskByteStr + ") <th " + |
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203 | NodeHeaderStr("nondfsused") + "> Non DFS <br>Used (" + |
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204 | diskByteStr + ") <th " + |
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205 | NodeHeaderStr("remaining") + "> Remaining <br>(" + |
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206 | diskByteStr + ") <th " + |
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207 | NodeHeaderStr("pcused") + "> Used <br>(%) <th " + |
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208 | NodeHeaderStr("pcused") + "> Used <br>(%) <th " + |
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209 | NodeHeaderStr("pcremaining") + "> Remaining <br>(%) <th " + |
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210 | NodeHeaderStr("blocks") + "> Blocks\n" ); |
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211 | |
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212 | jspHelper.sortNodeList(live, sorterField, sorterOrder); |
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213 | for ( int i=0; i < live.size(); i++ ) { |
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214 | generateNodeData(out, live.get(i), port_suffix, true, nnHttpPort); |
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215 | } |
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216 | } |
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217 | out.print("</table>\n"); |
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218 | } else { |
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219 | |
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220 | out.print("<br> <a name=\"DeadNodes\" id=\"title\"> " + |
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221 | " Dead Datanodes : " +dead.size() + "</a><br><br>\n"); |
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222 | |
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223 | if ( dead.size() > 0 ) { |
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224 | out.print( "<table border=1 cellspacing=0> <tr id=\"row1\"> " + |
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225 | "<td> Node \n" ); |
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226 | |
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227 | jspHelper.sortNodeList(dead, "name", "ASC"); |
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228 | for ( int i=0; i < dead.size() ; i++ ) { |
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229 | generateNodeData(out, dead.get(i), port_suffix, false, nnHttpPort); |
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230 | } |
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231 | |
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232 | out.print("</table>\n"); |
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233 | } |
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234 | } |
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235 | out.print("</div>"); |
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236 | } |
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237 | } |
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238 | private static java.util.List _jspx_dependants; |
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239 | |
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240 | public Object getDependants() { |
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241 | return _jspx_dependants; |
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242 | } |
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243 | |
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244 | public void _jspService(HttpServletRequest request, HttpServletResponse response) |
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245 | throws java.io.IOException, ServletException { |
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246 | |
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247 | JspFactory _jspxFactory = null; |
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248 | PageContext pageContext = null; |
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249 | HttpSession session = null; |
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250 | ServletContext application = null; |
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251 | ServletConfig config = null; |
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252 | JspWriter out = null; |
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253 | Object page = this; |
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254 | JspWriter _jspx_out = null; |
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255 | PageContext _jspx_page_context = null; |
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256 | |
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257 | |
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258 | try { |
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259 | _jspxFactory = JspFactory.getDefaultFactory(); |
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260 | response.setContentType("text/html; charset=UTF-8"); |
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261 | pageContext = _jspxFactory.getPageContext(this, request, response, |
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262 | null, true, 8192, true); |
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263 | _jspx_page_context = pageContext; |
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264 | application = pageContext.getServletContext(); |
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265 | config = pageContext.getServletConfig(); |
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266 | session = pageContext.getSession(); |
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267 | out = pageContext.getOut(); |
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268 | _jspx_out = out; |
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269 | |
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270 | out.write('\n'); |
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271 | out.write('\n'); |
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272 | out.write('\n'); |
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273 | |
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274 | NameNode nn = (NameNode)application.getAttribute("name.node"); |
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275 | FSNamesystem fsn = nn.getNamesystem(); |
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276 | String namenodeLabel = nn.getNameNodeAddress().getHostName() + ":" + nn.getNameNodeAddress().getPort(); |
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277 | |
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278 | out.write("\n\n<html>\n\n<link rel=\"stylesheet\" type=\"text/css\" href=\"/static/hadoop.css\">\n<title>Hadoop NameNode "); |
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279 | out.print(namenodeLabel); |
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280 | out.write("</title>\n \n<body>\n<h1>NameNode '"); |
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281 | out.print(namenodeLabel); |
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282 | out.write("'</h1>\n\n\n<div id=\"dfstable\"> <table>\t \n<tr> <td id=\"col1\"> Started: <td> "); |
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283 | out.print( fsn.getStartTime()); |
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284 | out.write("\n<tr> <td id=\"col1\"> Version: <td> "); |
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285 | out.print( VersionInfo.getVersion()); |
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286 | out.write(','); |
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287 | out.write(' '); |
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288 | out.write('r'); |
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289 | out.print( VersionInfo.getRevision()); |
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290 | out.write("\n<tr> <td id=\"col1\"> Compiled: <td> "); |
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291 | out.print( VersionInfo.getDate()); |
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292 | out.write(" by "); |
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293 | out.print( VersionInfo.getUser()); |
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294 | out.write("\n<tr> <td id=\"col1\"> Upgrades: <td> "); |
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295 | out.print( jspHelper.getUpgradeStatusText()); |
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296 | out.write("\n</table></div><br>\t\t\t\t \n\n<b><a href=\"/nn_browsedfscontent.jsp\">Browse the filesystem</a></b><br>\n<b><a href=\"/logs/\">Namenode Logs</a></b><br>\n<b><a href=/dfshealth.jsp> Go back to DFS home</a></b>\n<hr>\n"); |
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297 | |
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298 | generateDFSNodesList(out, nn, request); |
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299 | |
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300 | out.write('\n'); |
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301 | out.write('\n'); |
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302 | |
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303 | out.println(ServletUtil.htmlFooter()); |
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304 | |
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305 | out.write('\n'); |
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306 | } catch (Throwable t) { |
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307 | if (!(t instanceof SkipPageException)){ |
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308 | out = _jspx_out; |
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309 | if (out != null && out.getBufferSize() != 0) |
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310 | out.clearBuffer(); |
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311 | if (_jspx_page_context != null) _jspx_page_context.handlePageException(t); |
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312 | } |
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313 | } finally { |
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314 | if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context); |
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315 | } |
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316 | } |
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317 | } |
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