[154] | 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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