mapreduce - Hadoop Task Side Effect File Example -


? 

  Public class I can get an example of how to use work side effect files LongWritable, Text, Text, IntWritable & gt; {Public Zero Map (LongWritable Key, Text Value, OutputCollector & LT; Text, IntWritable> Production, Reporter Correspondent) Map0t MapReduceBase Implants Mapper Expands IOException {IntWritable A = New IntWritable (1); StringTokenizer tokenizer = New StringTokenizer (value.toString (), ","); String x; String wi; String jade; X = tokenizer.nextToken (); Y = tokenizer.nextToken (); Z = tokenizer.nextToken (); Output.collect (new text (x + "+ z), a);}}   
 In a separate folder in HDF, the new text in the above mapper function + + +, I want to write new text.  
 I searched, but could not find any examples from how to use work side effect files.  
 Pls help me.  
 Thanks in advance!   
 
 
 is not an optimal approach But a In the way I can think that  
 
 is open in a file format (in the setup), write in the HDFS, and then map (in clean) the map off. () It looks like one to use a unique filename.

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