本文整理汇总了Java中org.apache.hadoop.mapreduce.task.reduce.Shuffle类的典型用法代码示例。如果您正苦于以下问题：Java Shuffle类的具体用法？Java Shuffle怎么用？Java Shuffle使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
Shuffle类属于org.apache.hadoop.mapreduce.task.reduce包，在下文中一共展示了Shuffle类的1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: testPluginAbility
import org.apache.hadoop.mapreduce.task.reduce.Shuffle; //导入依赖的package包/类
@Test
/**
* A testing method instructing core hadoop to load an external ShuffleConsumerPlugin
* as if it came from a 3rd party.
*/
public void testPluginAbility() {
try{
// create JobConf with mapreduce.job.shuffle.consumer.plugin=TestShuffleConsumerPlugin
JobConf jobConf = new JobConf();
jobConf.setClass(MRConfig.SHUFFLE_CONSUMER_PLUGIN,
TestShufflePlugin.TestShuffleConsumerPlugin.class,
ShuffleConsumerPlugin.class);
ShuffleConsumerPlugin shuffleConsumerPlugin = null;
Class<? extends ShuffleConsumerPlugin> clazz =
jobConf.getClass(MRConfig.SHUFFLE_CONSUMER_PLUGIN, Shuffle.class, ShuffleConsumerPlugin.class);
assertNotNull("Unable to get " + MRConfig.SHUFFLE_CONSUMER_PLUGIN, clazz);
// load 3rd party plugin through core's factory method
shuffleConsumerPlugin = ReflectionUtils.newInstance(clazz, jobConf);
assertNotNull("Unable to load " + MRConfig.SHUFFLE_CONSUMER_PLUGIN, shuffleConsumerPlugin);
}
catch (Exception e) {
assertTrue("Threw exception:" + e, false);
}
}