Amandeep,
Add this to your driver.....
MultipleOutputs.addNamedOutput(conf, "PHONE",TextOutputFormat.class,
Text.class, Text.class);
MultipleOutputs.addNamedOutput(conf, "NAME,
TextOutputFormat.class, Text.class, Text.class);
And in your reducer....
private MultipleOutputs mos;
public void reduce(Text key, Iterator<Text> values,
OutputCollector<Text, Text> output, Reporter reporter) {
// namedOutPut = either PHONE or NAME
while (values.hasNext()) {
String value = values.next().toString();
mos.getCollector(namedOutPut, reporter).collect(
new Text(value), new Text(othervals));
}
}
@Override
public void configure(JobConf conf) {
super.configure(conf);
mos = new MultipleOutputs(conf);
}
public void close() throws IOException {
mos.close();
}
By the way, have you had a change to post your Oracle fix to
DBInputFormat ?
If so, what is the Jira tag #?
Brian
-----Original Message-----
From: Amandeep Khurana [mailto:ama...@gmail.com]
Sent: Friday, March 27, 2009 5:46 AM
To: core-user@hadoop.apache.org
Subject: Multiple k,v pairs from a single map - possible?
Is it possible to output multiple key value pairs from a single map
function
run?
For example, the mapper outputing <name,phone> and <name, address>
simultaneously...
Can I write multiple output.collect(...) commands?
Amandeep
Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz
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