本文整理汇总了Java中org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl.getDfsUsed方法的典型用法代码示例。如果您正苦于以下问题：Java FsVolumeImpl.getDfsUsed方法的具体用法？Java FsVolumeImpl.getDfsUsed怎么用？Java FsVolumeImpl.getDfsUsed使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl的用法示例。
在下文中一共展示了FsVolumeImpl.getDfsUsed方法的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: testDirectlyReloadAfterCheckDiskError
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl; //导入方法依赖的package包/类
/**
* Verify that {@link DataNode#checkDiskErrors()} removes all metadata in
* DataNode upon a volume failure. Thus we can run reconfig on the same
* configuration to reload the new volume on the same directory as the failed one.
*/
@Test(timeout=60000)
public void testDirectlyReloadAfterCheckDiskError()
throws IOException, TimeoutException, InterruptedException,
ReconfigurationException {
startDFSCluster(1, 2);
createFile(new Path("/test"), 32, (short)2);
DataNode dn = cluster.getDataNodes().get(0);
final String oldDataDir = dn.getConf().get(DFS_DATANODE_DATA_DIR_KEY);
File dirToFail = new File(cluster.getDataDirectory(), "data1");
FsVolumeImpl failedVolume = getVolume(dn, dirToFail);
assertTrue("No FsVolume was found for " + dirToFail,
failedVolume != null);
long used = failedVolume.getDfsUsed();
DataNodeTestUtils.injectDataDirFailure(dirToFail);
// Call and wait DataNode to detect disk failure.
long lastDiskErrorCheck = dn.getLastDiskErrorCheck();
dn.checkDiskErrorAsync();
while (dn.getLastDiskErrorCheck() == lastDiskErrorCheck) {
Thread.sleep(100);
}
createFile(new Path("/test1"), 32, (short)2);
assertEquals(used, failedVolume.getDfsUsed());
DataNodeTestUtils.restoreDataDirFromFailure(dirToFail);
dn.reconfigurePropertyImpl(DFS_DATANODE_DATA_DIR_KEY, oldDataDir);
createFile(new Path("/test2"), 32, (short)2);
FsVolumeImpl restoredVolume = getVolume(dn, dirToFail);
assertTrue(restoredVolume != null);
assertTrue(restoredVolume != failedVolume);
// More data has been written to this volume.
assertTrue(restoredVolume.getDfsUsed() > used);
}
示例2: testDirectlyReloadAfterCheckDiskError
import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl; //导入方法依赖的package包/类
/**
* Verify that {@link DataNode#checkDiskErrors()} removes all metadata in
* DataNode upon a volume failure. Thus we can run reconfig on the same
* configuration to reload the new volume on the same directory as the failed one.
*/
@Test(timeout=60000)
public void testDirectlyReloadAfterCheckDiskError()
throws IOException, TimeoutException, InterruptedException,
ReconfigurationException {
// The test uses DataNodeTestUtils#injectDataDirFailure() to simulate
// volume failures which is currently not supported on Windows.
assumeTrue(!Path.WINDOWS);
startDFSCluster(1, 2);
createFile(new Path("/test"), 32, (short)2);
DataNode dn = cluster.getDataNodes().get(0);
final String oldDataDir = dn.getConf().get(DFS_DATANODE_DATA_DIR_KEY);
File dirToFail = new File(cluster.getDataDirectory(), "data1");
FsVolumeImpl failedVolume = getVolume(dn, dirToFail);
assertTrue("No FsVolume was found for " + dirToFail,
failedVolume != null);
long used = failedVolume.getDfsUsed();
DataNodeTestUtils.injectDataDirFailure(dirToFail);
// Call and wait DataNode to detect disk failure.
long lastDiskErrorCheck = dn.getLastDiskErrorCheck();
dn.checkDiskErrorAsync();
while (dn.getLastDiskErrorCheck() == lastDiskErrorCheck) {
Thread.sleep(100);
}
createFile(new Path("/test1"), 32, (short)2);
assertEquals(used, failedVolume.getDfsUsed());
DataNodeTestUtils.restoreDataDirFromFailure(dirToFail);
dn.reconfigurePropertyImpl(DFS_DATANODE_DATA_DIR_KEY, oldDataDir);
createFile(new Path("/test2"), 32, (short)2);
FsVolumeImpl restoredVolume = getVolume(dn, dirToFail);
assertTrue(restoredVolume != null);
assertTrue(restoredVolume != failedVolume);
// More data has been written to this volume.
assertTrue(restoredVolume.getDfsUsed() > used);
}