What's the output logs from your job..
On Thu, Nov 17, 2011 at 5:30 AM, Something Something <
[email protected]> wrote:
> Why could this not be working? Any ideas? I even put a 'throw new
> RuntimeException' to see if it's coming to the Mapper, but it isn't.
> Thanks for the help.
>
> Code snippet:
>
>
>
> public static class MapImpl extends AvroMapper<Utf8, Pair<Utf8,
> Long>> {
>
> @Override
>
> public void map(Utf8 text, AvroCollector<Pair<Utf8, Long>>
> collector,
>
> Reporter reporter) throws IOException {
>
> throw new RuntimeException("my text: " + text.toString());
>
> // System.out.println("my text" + text);
>
> //
>
> // collector.collect(new Pair<Utf8, Long>(text, 1L));
>
> }
>
> }
>
>
>
> private static class NonAvroReducer
>
> extends MapReduceBase
>
> implements Reducer<AvroKey<Utf8>, AvroValue<Long>, Text,
> Text> {
>
>
> public void reduce(AvroKey<Utf8> key, Iterator<AvroValue<Long>>
> values,
>
> OutputCollector<Text, Text> out,
>
> Reporter reporter) throws IOException {
>
> out.collect(new Text(key.toString()),
>
> new Text("Testing"));
>
> while (values.hasNext()) {
>
> AvroValue<Long> value = values.next();
>
> out.collect(new Text(key.toString()),
>
> new Text(value.datum().toString()));
>
> }
>
> }
>
> }
>
>
> public static void main(String[] args) throws Exception {
>
>
>
> String dir = "/user/mydir";
>
>
>
> JobConf job = new JobConf(new Configuration(), TestAvroProcessor.
> class);
>
> job.setJobName(TestAvroProcessor.class.getName());
>
>
>
> Path outputPath = new Path(dir + "/out");
>
>
> outputPath.getFileSystem(job).delete(outputPath);
>
>
>
> AvroJob.setInputSchema(job, Schema.parse(new File(
> "/Users/mydir/profiles.json")));
>
> AvroJob.setOutputSchema(job, SCHEMA);
>
>
> AvroJob.setMapperClass(job, MapImpl.class);
>
>
> FileInputFormat.setInputPaths(job, new Path(dir + "/data"));
>
> FileOutputFormat.setOutputPath(job, outputPath);
>
> FileOutputFormat.setCompressOutput(job, false);
>
>
>
> job.setReducerClass(NonAvroReducer.class);
>
> job.setOutputFormat(TextOutputFormat.class);
>
> job.setOutputKeyClass(Text.class);
>
> job.setOutputValueClass(Text.class);
>
>
>
> JobClient.runJob(job);
>
>
>
>
>
> }
>
>
>
>
> On Tue, Nov 15, 2011 at 5:12 PM, Doug Cutting <[email protected]> wrote:
>
>> On 11/15/2011 03:16 PM, Something Something wrote:
>> > Quick question. I want the output from AvroJob.setReducerClass to be in
>> > regular Text files - not in AVRO format. Can I do that? Any examples?
>> > Sorry, kinda short on time to do research. Thanks.
>>
>> On the previously cited documentation page:
>>
>>
>> http://avro.apache.org/docs/current/api/java/org/apache/avro/mapred/package-summary.html
>>
>> Look for the text, "For jobs whose input is an Avro data file and which
>> use an AvroMapper, but whose reducer is a non-Avro Reducer and whose
>> output is a non-Avro format".
>>
>> A sample of a job that does this is at:
>>
>> http://s.apache.org/MsG
>>
>> Just use TextOutputFormat instead of SequenceFileOutputFormat.
>>
>> Doug
>>
>
>
