| /** |
| * 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; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.protocol.DatanodeInfo; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.apache.log4j.Level; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestDFSStripedOutputStream { |
| public static final Log LOG = LogFactory.getLog( |
| TestDFSStripedOutputStream.class); |
| |
| static { |
| GenericTestUtils.setLogLevel(DFSOutputStream.LOG, Level.ALL); |
| GenericTestUtils.setLogLevel(DataStreamer.LOG, Level.ALL); |
| } |
| |
| private int dataBlocks = StripedFileTestUtil.NUM_DATA_BLOCKS; |
| private int parityBlocks = StripedFileTestUtil.NUM_PARITY_BLOCKS; |
| |
| private MiniDFSCluster cluster; |
| private DistributedFileSystem fs; |
| private Configuration conf; |
| private final int cellSize = StripedFileTestUtil.BLOCK_STRIPED_CELL_SIZE; |
| private final int stripesPerBlock = 4; |
| private final int blockSize = cellSize * stripesPerBlock; |
| |
| @Before |
| public void setup() throws IOException { |
| int numDNs = dataBlocks + parityBlocks + 2; |
| conf = new Configuration(); |
| conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, blockSize); |
| conf.setInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY, 0); |
| cluster = new MiniDFSCluster.Builder(conf).numDataNodes(numDNs).build(); |
| cluster.getFileSystem().getClient().setErasureCodingPolicy("/", null); |
| fs = cluster.getFileSystem(); |
| } |
| |
| @After |
| public void tearDown() { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| |
| @Test |
| public void testFileEmpty() throws Exception { |
| testOneFile("/EmptyFile", 0); |
| } |
| |
| @Test |
| public void testFileSmallerThanOneCell1() throws Exception { |
| testOneFile("/SmallerThanOneCell", 1); |
| } |
| |
| @Test |
| public void testFileSmallerThanOneCell2() throws Exception { |
| testOneFile("/SmallerThanOneCell", cellSize - 1); |
| } |
| |
| @Test |
| public void testFileEqualsWithOneCell() throws Exception { |
| testOneFile("/EqualsWithOneCell", cellSize); |
| } |
| |
| @Test |
| public void testFileSmallerThanOneStripe1() throws Exception { |
| testOneFile("/SmallerThanOneStripe", cellSize * dataBlocks - 1); |
| } |
| |
| @Test |
| public void testFileSmallerThanOneStripe2() throws Exception { |
| testOneFile("/SmallerThanOneStripe", cellSize + 123); |
| } |
| |
| @Test |
| public void testFileEqualsWithOneStripe() throws Exception { |
| testOneFile("/EqualsWithOneStripe", cellSize * dataBlocks); |
| } |
| |
| @Test |
| public void testFileMoreThanOneStripe1() throws Exception { |
| testOneFile("/MoreThanOneStripe1", cellSize * dataBlocks + 123); |
| } |
| |
| @Test |
| public void testFileMoreThanOneStripe2() throws Exception { |
| testOneFile("/MoreThanOneStripe2", cellSize * dataBlocks |
| + cellSize * dataBlocks + 123); |
| } |
| |
| @Test |
| public void testFileLessThanFullBlockGroup() throws Exception { |
| testOneFile("/LessThanFullBlockGroup", |
| cellSize * dataBlocks * (stripesPerBlock - 1) + cellSize); |
| } |
| |
| @Test |
| public void testFileFullBlockGroup() throws Exception { |
| testOneFile("/FullBlockGroup", blockSize * dataBlocks); |
| } |
| |
| @Test |
| public void testFileMoreThanABlockGroup1() throws Exception { |
| testOneFile("/MoreThanABlockGroup1", blockSize * dataBlocks + 123); |
| } |
| |
| @Test |
| public void testFileMoreThanABlockGroup2() throws Exception { |
| testOneFile("/MoreThanABlockGroup2", |
| blockSize * dataBlocks + cellSize+ 123); |
| } |
| |
| |
| @Test |
| public void testFileMoreThanABlockGroup3() throws Exception { |
| testOneFile("/MoreThanABlockGroup3", |
| blockSize * dataBlocks * 3 + cellSize * dataBlocks |
| + cellSize + 123); |
| } |
| |
| private void testOneFile(String src, int writeBytes) throws Exception { |
| src += "_" + writeBytes; |
| Path testPath = new Path(src); |
| |
| byte[] bytes = StripedFileTestUtil.generateBytes(writeBytes); |
| DFSTestUtil.writeFile(fs, testPath, new String(bytes)); |
| StripedFileTestUtil.waitBlockGroupsReported(fs, src); |
| |
| StripedFileTestUtil.checkData(fs, testPath, writeBytes, |
| new ArrayList<DatanodeInfo>(), null); |
| } |
| } |