1 | /** |
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2 | * Number of faults per geographical location. |
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3 | * |
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4 | * @author cristina |
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5 | */ |
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6 | |
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7 | package org.PP; |
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8 | |
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9 | import java.util.*; |
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10 | import java.util.concurrent.atomic.*; |
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11 | import java.io.*; |
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12 | |
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13 | import org.apache.hadoop.fs.Path; |
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14 | import org.apache.hadoop.filecache.DistributedCache; |
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15 | import org.apache.hadoop.conf.*; |
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16 | import org.apache.hadoop.io.*; |
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17 | import org.apache.hadoop.mapred.*; |
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18 | import org.apache.hadoop.util.*; |
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19 | |
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20 | public class NodesLocation { |
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21 | |
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22 | public static class Map extends MapReduceBase implements |
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23 | Mapper<LongWritable, Text, Text, Text> { |
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24 | |
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25 | static Text valOne = new Text("1"); |
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26 | |
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27 | public void map(LongWritable key, Text value, |
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28 | OutputCollector<Text, Text> output, Reporter reporter) |
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29 | throws IOException { |
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30 | |
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31 | Text label = new Text(); |
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32 | String line = value.toString(); |
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33 | Text valLoc = new Text(); |
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34 | |
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35 | |
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36 | // skip comments |
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37 | if (!line.startsWith("#")) { |
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38 | |
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39 | Integer nodeId = new Integer(0), platformId = new Integer(0); |
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40 | String nodeLocation = ""; |
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41 | int count = 0; |
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42 | |
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43 | StringTokenizer tokenizer = new StringTokenizer(line); |
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44 | String token = ""; |
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45 | |
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46 | if(tokenizer.countTokens() == 9) { |
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47 | count = 0; |
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48 | // event_trace file |
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49 | while (tokenizer.hasMoreTokens()) { |
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50 | |
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51 | token = tokenizer.nextToken(); |
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52 | if (count == 2) |
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53 | nodeId = Integer.parseInt(token); |
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54 | if (count == 3) |
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55 | platformId = Integer.parseInt(token); |
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56 | count++; |
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57 | } |
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58 | String skey = nodeId+";"+platformId; |
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59 | label.set(skey); |
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60 | output.collect(label, valOne); |
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61 | } |
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62 | else { |
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63 | // nodes file |
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64 | tokenizer = new StringTokenizer(line); |
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65 | count = 0; |
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66 | while (tokenizer.hasMoreTokens()) { |
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67 | token = tokenizer.nextToken(); |
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68 | if(count == 0) |
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69 | nodeId = Integer.parseInt(token); |
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70 | if(count == 1) |
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71 | platformId = Integer.parseInt(token); |
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72 | if(count == 4) { |
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73 | nodeLocation = token; |
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74 | //System.out.println("locatia citita e "+token); |
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75 | break; |
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76 | } |
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77 | count++; |
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78 | } |
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79 | String skey = nodeId+";"+platformId; |
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80 | label.set(skey); |
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81 | valLoc.set(nodeLocation); |
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82 | //System.out.println("generez locatia "+nodeLocation); |
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83 | output.collect(label, valLoc); |
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84 | } |
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85 | |
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86 | } |
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87 | } |
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88 | } |
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89 | |
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90 | |
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91 | public static class Combine extends MapReduceBase implements |
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92 | Reducer<Text, Text, Text, Text> { |
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93 | |
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94 | |
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95 | public void reduce(Text key, Iterator<Text> values, |
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96 | OutputCollector<Text, Text> output, Reporter reporter) |
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97 | throws IOException { |
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98 | |
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99 | Long sum = new Long(0); |
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100 | Text val = new Text(); |
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101 | Text location = new Text(); |
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102 | |
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103 | System.out.println("in combiner cheia "+key); |
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104 | // sum them |
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105 | while (values.hasNext()) { |
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106 | String crt = values.next().toString(); |
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107 | try { |
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108 | sum += Long.parseLong(crt); |
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109 | } |
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110 | catch (Exception e) { |
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111 | location.set(crt); |
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112 | System.out.println("in combiner am gasit locatia " + crt); |
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113 | } |
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114 | /* |
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115 | if(crt.compareTo("1") == 0) { |
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116 | System.out.println("in combiner am gasit 1"); |
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117 | sum ++; |
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118 | } |
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119 | else { |
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120 | System.out.println("in combiner am gasit locatia " + crt); |
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121 | location.set(crt); |
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122 | } |
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123 | */ |
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124 | } |
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125 | |
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126 | //System.out.println("din combiner sum e "+sum); |
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127 | val.set(sum.toString()); |
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128 | output.collect(key, val); |
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129 | //output.collect(key, val); |
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130 | //output.collect(key, location); |
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131 | if(location.toString().compareTo("") != 0) |
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132 | output.collect(key, location); |
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133 | //System.out.println("din combiner generez locatia "+location); |
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134 | |
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135 | |
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136 | } |
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137 | } |
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138 | |
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139 | |
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140 | public static class Map2 extends MapReduceBase implements |
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141 | Mapper<LongWritable, Text, Text, LongWritable> { |
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142 | |
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143 | static Text valOne = new Text("1"); |
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144 | |
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145 | public void map(LongWritable key, Text value, |
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146 | OutputCollector<Text, LongWritable> output, Reporter reporter) |
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147 | throws IOException { |
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148 | |
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149 | Text label = new Text(); |
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150 | LongWritable val = new LongWritable(); |
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151 | String line = value.toString(); |
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152 | |
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153 | Long lval = new Long(0); |
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154 | String location = ""; |
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155 | StringTokenizer tokenizer = new StringTokenizer(line); |
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156 | if(tokenizer.hasMoreTokens()) { |
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157 | location = tokenizer.nextToken(); |
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158 | if(tokenizer.hasMoreTokens()) { |
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159 | lval = Long.parseLong(tokenizer.nextToken()); |
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160 | label.set(location); |
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161 | val.set(lval); |
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162 | output.collect(label, val); |
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163 | } |
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164 | } |
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165 | |
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166 | } |
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167 | } |
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168 | |
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169 | public static class Reduce extends MapReduceBase implements |
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170 | Reducer<Text, Text, Text, LongWritable> { |
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171 | |
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172 | |
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173 | |
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174 | public void reduce(Text key, Iterator<Text> values, |
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175 | OutputCollector<Text, LongWritable> output, Reporter reporter) |
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176 | throws IOException { |
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177 | |
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178 | Long sum = new Long(0); |
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179 | LongWritable s = new LongWritable(0); |
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180 | Text label = new Text(); |
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181 | |
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182 | System.out.println("INCEP cheia "+key); |
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183 | |
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184 | // sum them |
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185 | while (values.hasNext()) { |
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186 | String crt = values.next().toString(); |
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187 | try { |
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188 | |
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189 | sum += Long.parseLong(crt); |
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190 | System.out.println("suma e "+sum); |
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191 | System.out.println("in reducer adun "+crt); |
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192 | } |
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193 | catch (Exception e) { |
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194 | System.out.println("in reducer locatia "+crt); |
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195 | label.set(crt); |
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196 | } |
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197 | } |
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198 | |
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199 | System.out.println("in reducer suma totala "+sum); |
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200 | s.set(sum); |
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201 | //output.collect(label, s); |
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202 | output.collect(label, s); |
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203 | } |
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204 | } |
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205 | |
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206 | public static class Reduce2 extends MapReduceBase implements |
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207 | Reducer<Text, LongWritable, Text, LongWritable> { |
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208 | |
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209 | |
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210 | public void reduce(Text key, Iterator<LongWritable> values, |
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211 | OutputCollector<Text, LongWritable> output, Reporter reporter) |
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212 | throws IOException { |
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213 | |
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214 | Long sum = new Long(0); |
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215 | LongWritable s = new LongWritable(0); |
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216 | |
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217 | // sum them |
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218 | while (values.hasNext()) { |
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219 | sum += values.next().get(); |
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220 | } |
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221 | |
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222 | //System.out.println("in reducer suma totala "+sum); |
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223 | s.set(sum); |
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224 | //output.collect(label, s); |
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225 | output.collect(key, s); |
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226 | } |
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227 | } |
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228 | |
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229 | public static void main(String[] args) throws Exception { |
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230 | |
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231 | JobConf conf = new JobConf(NodesLocation.class); |
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232 | conf.setJobName("nodesLocation"); |
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233 | |
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234 | conf.setMapOutputKeyClass(Text.class); |
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235 | conf.setMapOutputValueClass(Text.class); |
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236 | |
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237 | conf.setOutputKeyClass(Text.class); |
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238 | conf.setOutputValueClass(LongWritable.class); |
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239 | |
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240 | conf.setMapperClass(Map.class); |
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241 | conf.setCombinerClass(Combine.class); |
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242 | conf.setReducerClass(Reduce.class); |
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243 | |
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244 | conf.setInputFormat(TextInputFormat.class); |
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245 | conf.setOutputFormat(TextOutputFormat.class); |
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246 | |
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247 | FileInputFormat.setInputPaths(conf, new Path(args[0]), new Path(args[2])); |
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248 | FileOutputFormat.setOutputPath(conf, new Path(args[1])); |
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249 | |
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250 | conf.setNumReduceTasks(5); |
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251 | |
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252 | JobClient.runJob(conf); |
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253 | |
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254 | // ----- |
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255 | JobConf conf2 = new JobConf(NodesLocation.class); |
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256 | conf2.setJobName("nodesLocation_ctd"); |
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257 | |
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258 | conf2.setMapOutputKeyClass(Text.class); |
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259 | conf2.setMapOutputValueClass(LongWritable.class); |
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260 | |
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261 | conf2.setOutputKeyClass(Text.class); |
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262 | conf2.setOutputValueClass(LongWritable.class); |
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263 | |
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264 | conf2.setMapperClass(Map2.class); |
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265 | conf.setCombinerClass(Reduce2.class); |
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266 | conf2.setReducerClass(Reduce2.class); |
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267 | |
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268 | conf2.setInputFormat(TextInputFormat.class); |
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269 | conf2.setOutputFormat(TextOutputFormat.class); |
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270 | |
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271 | FileInputFormat.setInputPaths(conf2, new Path(args[1])); |
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272 | FileOutputFormat.setOutputPath(conf2, new Path(args[3])); |
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273 | |
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274 | conf2.setNumReduceTasks(1); |
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275 | JobClient.runJob(conf2); |
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276 | |
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277 | } |
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278 | } |
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