本文整理匯總了Java中org.apache.hadoop.mapreduce.Job.addCacheArchive方法的典型用法代碼示例。如果您正苦於以下問題：Java Job.addCacheArchive方法的具體用法？Java Job.addCacheArchive怎麽用？Java Job.addCacheArchive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.mapreduce.Job的用法示例。
在下文中一共展示了Job.addCacheArchive方法的2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: testWithConf
import org.apache.hadoop.mapreduce.Job; //導入方法依賴的package包/類
private void testWithConf(Configuration conf) throws IOException,
InterruptedException, ClassNotFoundException, URISyntaxException {
// Create a temporary file of length 1.
Path first = createTempFile("distributed.first", "x");
// Create two jars with a single file inside them.
Path second =
makeJar(new Path(TEST_ROOT_DIR, "distributed.second.jar"), 2);
Path third =
makeJar(new Path(TEST_ROOT_DIR, "distributed.third.jar"), 3);
Path fourth =
makeJar(new Path(TEST_ROOT_DIR, "distributed.fourth.jar"), 4);
Job job = Job.getInstance(conf);
job.setMapperClass(DistributedCacheCheckerMapper.class);
job.setReducerClass(DistributedCacheCheckerReducer.class);
job.setOutputFormatClass(NullOutputFormat.class);
FileInputFormat.setInputPaths(job, first);
// Creates the Job Configuration
job.addCacheFile(
new URI(first.toUri().toString() + "#distributed.first.symlink"));
job.addFileToClassPath(second);
job.addArchiveToClassPath(third);
job.addCacheArchive(fourth.toUri());
job.setMaxMapAttempts(1); // speed up failures
job.submit();
assertTrue(job.waitForCompletion(false));
}
示例2: _testDistributedCache
import org.apache.hadoop.mapreduce.Job; //導入方法依賴的package包/類
public void _testDistributedCache(String jobJarPath) throws Exception {
if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) {
LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR
+ " not found. Not running test.");
return;
}
// Create a temporary file of length 1.
Path first = createTempFile("distributed.first", "x");
// Create two jars with a single file inside them.
Path second =
makeJar(new Path(TEST_ROOT_DIR, "distributed.second.jar"), 2);
Path third =
makeJar(new Path(TEST_ROOT_DIR, "distributed.third.jar"), 3);
Path fourth =
makeJar(new Path(TEST_ROOT_DIR, "distributed.fourth.jar"), 4);
Job job = Job.getInstance(mrCluster.getConfig());
// Set the job jar to a new "dummy" jar so we can check that its extracted
// properly
job.setJar(jobJarPath);
// Because the job jar is a "dummy" jar, we need to include the jar with
// DistributedCacheChecker or it won't be able to find it
Path distributedCacheCheckerJar = new Path(
JarFinder.getJar(DistributedCacheChecker.class));
job.addFileToClassPath(distributedCacheCheckerJar.makeQualified(
localFs.getUri(), distributedCacheCheckerJar.getParent()));
job.setMapperClass(DistributedCacheChecker.class);
job.setOutputFormatClass(NullOutputFormat.class);
FileInputFormat.setInputPaths(job, first);
// Creates the Job Configuration
job.addCacheFile(
new URI(first.toUri().toString() + "#distributed.first.symlink"));
job.addFileToClassPath(second);
// The AppMaster jar itself
job.addFileToClassPath(
APP_JAR.makeQualified(localFs.getUri(), APP_JAR.getParent()));
job.addArchiveToClassPath(third);
job.addCacheArchive(fourth.toUri());
job.setMaxMapAttempts(1); // speed up failures
job.submit();
String trackingUrl = job.getTrackingURL();
String jobId = job.getJobID().toString();
Assert.assertTrue(job.waitForCompletion(false));
Assert.assertTrue("Tracking URL was " + trackingUrl +
" but didn't Match Job ID " + jobId ,
trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/"));
}