As the doc on
http://hadoop.apache.org/docs/stable/api/org/apache/hadoop/mapred/join/TupleWritable.htmlstates,
I don't think you should be relying on the join package's
TupleWritable directly and should instead either use your own tested
implementation or an alternative, better serializer such as Apache Avro.
On Mon, Jan 14, 2013 at 3:57 PM, Stuti Awasthi <stutiawas...@hcl.com> wrote:
> Hi,****
>
> ** **
>
> I wanted to write the my input file which is in Text format to
> TupleWritable but when I collect the output using
> “output.collect(<intWritable>, <TupleWritable>)” its giving me empty tuple.
> ****
>
> ** **
>
> private final static IntWritable one = new IntWritable(1);****
>
> ** **
>
> public void map(LongWritable key, Text value,
> OutputCollector<IntWritable, TupleWritable> output, Reporter
> reporter)throws IOException {****
>
>
> IntWritable i = new IntWritable();****
>
> int k =
> Integer.parseInt(key.toString());****
>
> i.set(k);*
> ***
>
>
> TupleWritable tuple = new TupleWritable(new Writable[] { one });****
>
>
> output.collect(i, tuple);****
>
> ****
>
> }****
>
> ** **
>
> *Output:*
>
> <Key> []****
>
> <Key> []****
>
> ** **
>
> How can I populate the Tuple with desired values ?****
>
> ** **
>
> Regards****
>
> Stuti Awasthi****
>
>
>
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