本文整理匯總了Java中org.apache.hadoop.mapred.JobConf.setCombinerClass方法的典型用法代碼示例。如果您正苦於以下問題：Java JobConf.setCombinerClass方法的具體用法？Java JobConf.setCombinerClass怎麽用？Java JobConf.setCombinerClass使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.hadoop.mapred.JobConf的用法示例。
在下文中一共展示了JobConf.setCombinerClass方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: testCombinerShouldUpdateTheReporter
import org.apache.hadoop.mapred.JobConf; //導入方法依賴的package包/類
@Test
public void testCombinerShouldUpdateTheReporter() throws Exception {
JobConf conf = new JobConf(mrCluster.getConfig());
int numMaps = 5;
int numReds = 2;
Path in = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
"testCombinerShouldUpdateTheReporter-in");
Path out = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
"testCombinerShouldUpdateTheReporter-out");
createInputOutPutFolder(in, out, numMaps);
conf.setJobName("test-job-with-combiner");
conf.setMapperClass(IdentityMapper.class);
conf.setCombinerClass(MyCombinerToCheckReporter.class);
//conf.setJarByClass(MyCombinerToCheckReporter.class);
conf.setReducerClass(IdentityReducer.class);
DistributedCache.addFileToClassPath(TestMRJobs.APP_JAR, conf);
conf.setOutputCommitter(CustomOutputCommitter.class);
conf.setInputFormat(TextInputFormat.class);
conf.setOutputKeyClass(LongWritable.class);
conf.setOutputValueClass(Text.class);
FileInputFormat.setInputPaths(conf, in);
FileOutputFormat.setOutputPath(conf, out);
conf.setNumMapTasks(numMaps);
conf.setNumReduceTasks(numReds);
runJob(conf);
}