本文整理汇总了Java中org.apache.hadoop.FailingMapper类的典型用法代码示例。如果您正苦于以下问题：Java FailingMapper类的具体用法？Java FailingMapper怎么用？Java FailingMapper使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
FailingMapper类属于org.apache.hadoop包，在下文中一共展示了FailingMapper类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: runFailingMapperJob
import org.apache.hadoop.FailingMapper; //导入依赖的package包/类
protected Job runFailingMapperJob()
throws IOException, InterruptedException, ClassNotFoundException {
Configuration myConf = new Configuration(mrCluster.getConfig());
myConf.setInt(MRJobConfig.NUM_MAPS, 1);
myConf.setInt(MRJobConfig.MAP_MAX_ATTEMPTS, 2); //reduce the number of attempts
Job job = Job.getInstance(myConf);
job.setJarByClass(FailingMapper.class);
job.setJobName("failmapper");
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setInputFormatClass(RandomInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setMapperClass(FailingMapper.class);
job.setNumReduceTasks(0);
FileOutputFormat.setOutputPath(job, new Path(OUTPUT_ROOT_DIR,
"failmapper-output"));
job.addFileToClassPath(APP_JAR); // The AppMaster jar itself.
job.submit();
String trackingUrl = job.getTrackingURL();
String jobId = job.getJobID().toString();
boolean succeeded = job.waitForCompletion(true);
Assert.assertFalse(succeeded);
Assert.assertTrue("Tracking URL was " + trackingUrl +
" but didn't Match Job ID " + jobId ,
trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/"));
return job;
}
示例2: runFailingMapperJob
import org.apache.hadoop.FailingMapper; //导入依赖的package包/类
protected Job runFailingMapperJob()
throws IOException, InterruptedException, ClassNotFoundException {
Configuration myConf = new Configuration(mrCluster.getConfig());
myConf.setInt(MRJobConfig.NUM_MAPS, 1);
myConf.setInt(MRJobConfig.MAP_MAX_ATTEMPTS, 2); //reduce the number of attempts
Job job = new Job(myConf);
job.setJarByClass(FailingMapper.class);
job.setJobName("failmapper");
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setInputFormatClass(RandomInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setMapperClass(FailingMapper.class);
job.setNumReduceTasks(0);
FileOutputFormat.setOutputPath(job, new Path(OUTPUT_ROOT_DIR,
"failmapper-output"));
job.addFileToClassPath(APP_JAR); // The AppMaster jar itself.
job.submit();
String trackingUrl = job.getTrackingURL();
String jobId = job.getJobID().toString();
boolean succeeded = job.waitForCompletion(true);
Assert.assertFalse(succeeded);
Assert.assertTrue("Tracking URL was " + trackingUrl +
" but didn't Match Job ID " + jobId ,
trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/"));
return job;
}