Java Code Examples for org.apache.hadoop.tools.DistCpOptions#preserve()
The following examples show how to use
org.apache.hadoop.tools.DistCpOptions#preserve() .
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Example 1
Source File: CubeMigrationCrossClusterCLI.java From kylin with Apache License 2.0 | 5 votes |
protected void copyHDFSPath(String srcDir, Configuration srcConf, String dstDir, Configuration dstConf) throws Exception { logger.info("start to copy hdfs directory from {} to {}", srcDir, dstDir); DistCpOptions distCpOptions = OptionsParser.parse(new String[] { srcDir, dstDir }); distCpOptions.preserve(DistCpOptions.FileAttribute.BLOCKSIZE); distCpOptions.setBlocking(true); setTargetPathExists(distCpOptions); DistCp distCp = new DistCp(getConfOfDistCp(), distCpOptions); distCp.execute(); logger.info("copied hdfs directory from {} to {}", srcDir, dstDir); }
Example 2
Source File: TestCopyCommitter.java From hadoop with Apache License 2.0 | 4 votes |
@Test public void testPreserveStatus() { TaskAttemptContext taskAttemptContext = getTaskAttemptContext(config); JobContext jobContext = new JobContextImpl(taskAttemptContext.getConfiguration(), taskAttemptContext.getTaskAttemptID().getJobID()); Configuration conf = jobContext.getConfiguration(); String sourceBase; String targetBase; FileSystem fs = null; try { OutputCommitter committer = new CopyCommitter(null, taskAttemptContext); fs = FileSystem.get(conf); FsPermission sourcePerm = new FsPermission((short) 511); FsPermission initialPerm = new FsPermission((short) 448); sourceBase = TestDistCpUtils.createTestSetup(fs, sourcePerm); targetBase = TestDistCpUtils.createTestSetup(fs, initialPerm); DistCpOptions options = new DistCpOptions(Arrays.asList(new Path(sourceBase)), new Path("/out")); options.preserve(FileAttribute.PERMISSION); options.appendToConf(conf); options.setTargetPathExists(false); CopyListing listing = new GlobbedCopyListing(conf, CREDENTIALS); Path listingFile = new Path("/tmp1/" + String.valueOf(rand.nextLong())); listing.buildListing(listingFile, options); conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, targetBase); committer.commitJob(jobContext); if (!checkDirectoryPermissions(fs, targetBase, sourcePerm)) { Assert.fail("Permission don't match"); } //Test for idempotent commit committer.commitJob(jobContext); if (!checkDirectoryPermissions(fs, targetBase, sourcePerm)) { Assert.fail("Permission don't match"); } } catch (IOException e) { LOG.error("Exception encountered while testing for preserve status", e); Assert.fail("Preserve status failure"); } finally { TestDistCpUtils.delete(fs, "/tmp1"); conf.unset(DistCpConstants.CONF_LABEL_PRESERVE_STATUS); } }
Example 3
Source File: TestCopyCommitter.java From big-c with Apache License 2.0 | 4 votes |
@Test public void testPreserveStatus() { TaskAttemptContext taskAttemptContext = getTaskAttemptContext(config); JobContext jobContext = new JobContextImpl(taskAttemptContext.getConfiguration(), taskAttemptContext.getTaskAttemptID().getJobID()); Configuration conf = jobContext.getConfiguration(); String sourceBase; String targetBase; FileSystem fs = null; try { OutputCommitter committer = new CopyCommitter(null, taskAttemptContext); fs = FileSystem.get(conf); FsPermission sourcePerm = new FsPermission((short) 511); FsPermission initialPerm = new FsPermission((short) 448); sourceBase = TestDistCpUtils.createTestSetup(fs, sourcePerm); targetBase = TestDistCpUtils.createTestSetup(fs, initialPerm); DistCpOptions options = new DistCpOptions(Arrays.asList(new Path(sourceBase)), new Path("/out")); options.preserve(FileAttribute.PERMISSION); options.appendToConf(conf); options.setTargetPathExists(false); CopyListing listing = new GlobbedCopyListing(conf, CREDENTIALS); Path listingFile = new Path("/tmp1/" + String.valueOf(rand.nextLong())); listing.buildListing(listingFile, options); conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, targetBase); committer.commitJob(jobContext); if (!checkDirectoryPermissions(fs, targetBase, sourcePerm)) { Assert.fail("Permission don't match"); } //Test for idempotent commit committer.commitJob(jobContext); if (!checkDirectoryPermissions(fs, targetBase, sourcePerm)) { Assert.fail("Permission don't match"); } } catch (IOException e) { LOG.error("Exception encountered while testing for preserve status", e); Assert.fail("Preserve status failure"); } finally { TestDistCpUtils.delete(fs, "/tmp1"); conf.unset(DistCpConstants.CONF_LABEL_PRESERVE_STATUS); } }