本文整理汇总了Java中org.apache.hadoop.mapreduce.util.MRAsyncDiskService.TOBEDELETED属性的典型用法代码示例。如果您正苦于以下问题：Java MRAsyncDiskService.TOBEDELETED属性的具体用法？Java MRAsyncDiskService.TOBEDELETED怎么用？Java MRAsyncDiskService.TOBEDELETED使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.hadoop.mapreduce.util.MRAsyncDiskService的用法示例。
在下文中一共展示了MRAsyncDiskService.TOBEDELETED属性的3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: testVolumeNormalization
@Test
/** Test that volumes specified as relative paths are handled properly
* by MRAsyncDiskService (MAPREDUCE-1887).
*/
public void testVolumeNormalization() throws Throwable {
LOG.info("TEST_ROOT_DIR is " + TEST_ROOT_DIR);
String relativeTestRoot = relativeToWorking(TEST_ROOT_DIR);
FileSystem localFileSystem = FileSystem.getLocal(new Configuration());
String [] vols = new String[] { relativeTestRoot + "/0",
relativeTestRoot + "/1" };
// Put a file in one of the volumes to be cleared on startup.
Path delDir = new Path(vols[0], MRAsyncDiskService.TOBEDELETED);
localFileSystem.mkdirs(delDir);
localFileSystem.create(new Path(delDir, "foo")).close();
MRAsyncDiskService service = new MRAsyncDiskService(
localFileSystem, vols);
makeSureCleanedUp(vols, service);
}
示例2: testMRAsyncDiskServiceStartupCleaning
/**
* This test creates some directories inside the toBeDeleted directory and
* then start the asyncDiskService.
* AsyncDiskService will create tasks to delete the content inside the
* toBeDeleted directories.
*/
@Test
public void testMRAsyncDiskServiceStartupCleaning() throws Throwable {
FileSystem localFileSystem = FileSystem.getLocal(new Configuration());
String[] vols = new String[]{TEST_ROOT_DIR + "/0",
TEST_ROOT_DIR + "/1"};
String a = "a";
String b = "b";
String c = "b/c";
String d = "d";
// Create directories inside SUBDIR
String suffix = Path.SEPARATOR_CHAR + MRAsyncDiskService.TOBEDELETED;
File fa = new File(vols[0] + suffix, a);
File fb = new File(vols[1] + suffix, b);
File fc = new File(vols[1] + suffix, c);
File fd = new File(vols[1] + suffix, d);
// Create the directories
fa.mkdirs();
fb.mkdirs();
fc.mkdirs();
fd.mkdirs();
assertTrue(fa.exists());
assertTrue(fb.exists());
assertTrue(fc.exists());
assertTrue(fd.exists());
// Create the asyncDiskService which will delete all contents inside SUBDIR
MRAsyncDiskService service = new MRAsyncDiskService(
localFileSystem, vols);
// Make sure everything is cleaned up
makeSureCleanedUp(vols, service);
}
示例3: makeSureCleanedUp
private void makeSureCleanedUp(String[] vols, MRAsyncDiskService service)
throws Throwable {
// Sleep at most 5 seconds to make sure the deleted items are all gone.
service.shutdown();
if (!service.awaitTermination(5000)) {
fail("MRAsyncDiskService is still not shutdown in 5 seconds!");
}
// All contents should be gone by now.
for (int i = 0; i < vols.length; i++) {
File subDir = new File(vols[0]);
String[] subDirContent = subDir.list();
assertEquals("Volume should contain a single child: "
+ MRAsyncDiskService.TOBEDELETED, 1, subDirContent.length);
File toBeDeletedDir = new File(vols[0], MRAsyncDiskService.TOBEDELETED);
String[] content = toBeDeletedDir.list();
assertNotNull("Cannot find " + toBeDeletedDir, content);
assertEquals("" + toBeDeletedDir + " should be empty now.", 0,
content.length);
}
}