| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hdfs.tools.offlineImageViewer; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.UnresolvedLinkException; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.DFSTestUtil; |
| import org.apache.hadoop.hdfs.DistributedFileSystem; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.protocol.HdfsConstants; |
| import org.apache.hadoop.hdfs.protocol.HdfsConstants.SafeModeAction; |
| import org.apache.hadoop.hdfs.protocol.SnapshotAccessControlException; |
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo; |
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockInfoStriped; |
| import org.apache.hadoop.hdfs.server.namenode.FSDirectory; |
| import org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil; |
| import org.apache.hadoop.hdfs.server.namenode.INodeFile; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| public class TestOfflineImageViewerWithStripedBlocks { |
| private static int dataBlocks = HdfsConstants.NUM_DATA_BLOCKS; |
| private static int parityBlocks = HdfsConstants.NUM_PARITY_BLOCKS; |
| |
| private static MiniDFSCluster cluster; |
| private static DistributedFileSystem fs; |
| private static final int cellSize = HdfsConstants.BLOCK_STRIPED_CELL_SIZE; |
| private static final int stripesPerBlock = 3; |
| private static final int blockSize = cellSize * stripesPerBlock; |
| |
| @BeforeClass |
| public static void setup() throws IOException { |
| int numDNs = dataBlocks + parityBlocks + 2; |
| Configuration conf = new Configuration(); |
| conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize); |
| cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build(); |
| cluster.waitActive(); |
| cluster.getFileSystem().getClient().createErasureCodingZone("/", null); |
| fs = cluster.getFileSystem(); |
| Path eczone = new Path("/eczone"); |
| fs.mkdirs(eczone); |
| } |
| |
| @AfterClass |
| public static void tearDown() { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileEqualToOneStripe() throws Exception { |
| int numBytes = cellSize; |
| testFileSize(numBytes); |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileLessThanOneStripe() throws Exception { |
| int numBytes = cellSize - 100; |
| testFileSize(numBytes); |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileHavingMultipleBlocks() throws Exception { |
| int numBytes = blockSize * 3; |
| testFileSize(numBytes); |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileLargerThanABlockGroup1() throws IOException { |
| testFileSize(blockSize * dataBlocks + cellSize + 123); |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileLargerThanABlockGroup2() throws IOException { |
| testFileSize(blockSize * dataBlocks * 3 + cellSize * dataBlocks + cellSize |
| + 123); |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileFullBlockGroup() throws IOException { |
| testFileSize(blockSize * dataBlocks); |
| } |
| |
| @Test(timeout = 60000) |
| public void testFileMoreThanOneStripe() throws Exception { |
| int numBytes = blockSize + blockSize / 2; |
| testFileSize(numBytes); |
| } |
| |
| private void testFileSize(int numBytes) throws IOException, |
| UnresolvedLinkException, SnapshotAccessControlException { |
| fs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE); |
| File orgFsimage = null; |
| Path file = new Path("/eczone/striped"); |
| FSDataOutputStream out = fs.create(file, true); |
| byte[] bytes = DFSTestUtil.generateSequentialBytes(0, numBytes); |
| out.write(bytes); |
| out.close(); |
| |
| // Write results to the fsimage file |
| fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false); |
| fs.saveNamespace(); |
| |
| // Determine location of fsimage file |
| orgFsimage = FSImageTestUtil.findLatestImageFile(FSImageTestUtil |
| .getFSImage(cluster.getNameNode()).getStorage().getStorageDir(0)); |
| if (orgFsimage == null) { |
| throw new RuntimeException("Didn't generate or can't find fsimage"); |
| } |
| FSImageLoader loader = FSImageLoader.load(orgFsimage.getAbsolutePath()); |
| String fileStatus = loader.getFileStatus("/eczone/striped"); |
| long expectedFileSize = bytes.length; |
| |
| // Verify space consumed present in BlockInfoStriped |
| FSDirectory fsdir = cluster.getNamesystem().getFSDirectory(); |
| INodeFile fileNode = fsdir.getINode4Write(file.toString()).asFile(); |
| assertTrue("Invalid block size", fileNode.getBlocks().length > 0); |
| long actualFileSize = 0; |
| for (BlockInfo blockInfo : fileNode.getBlocks()) { |
| assertTrue("Didn't find block striped information", |
| blockInfo instanceof BlockInfoStriped); |
| actualFileSize += blockInfo.getNumBytes(); |
| } |
| |
| assertEquals("Wrongly computed file size contains striped blocks", |
| expectedFileSize, actualFileSize); |
| |
| // Verify space consumed present in filestatus |
| String EXPECTED_FILE_SIZE = "\"length\":" |
| + String.valueOf(expectedFileSize); |
| assertTrue( |
| "Wrongly computed file size contains striped blocks, file status:" |
| + fileStatus + ". Expected file size is : " + EXPECTED_FILE_SIZE, |
| fileStatus.contains(EXPECTED_FILE_SIZE)); |
| } |
| } |