| /* |
| * 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.ozone.container.keyvalue.helpers; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.hadoop.ozone.container.common.helpers.ChunkInfo; |
| import org.apache.hadoop.ozone.container.common.volume.VolumeIOStats; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.nio.ByteBuffer; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.Arrays; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| |
| /** |
| * Tests for {@link ChunkUtils}. |
| */ |
| public class TestChunkUtils { |
| |
| private static final Logger LOG = |
| LoggerFactory.getLogger(TestChunkUtils.class); |
| |
| private static final String PREFIX = TestChunkUtils.class.getSimpleName(); |
| |
| @Test |
| public void concurrentReadOfSameFile() throws Exception { |
| String s = "Hello World"; |
| byte[] array = s.getBytes(); |
| ByteBuffer data = ByteBuffer.wrap(array); |
| Path tempFile = Files.createTempFile(PREFIX, "concurrent"); |
| try { |
| ChunkInfo chunkInfo = new ChunkInfo(tempFile.toString(), |
| 0, data.capacity()); |
| File file = tempFile.toFile(); |
| VolumeIOStats stats = new VolumeIOStats(); |
| ChunkUtils.writeData(file, chunkInfo, data, stats, true); |
| int threads = 10; |
| ExecutorService executor = new ThreadPoolExecutor(threads, threads, |
| 0, TimeUnit.SECONDS, new LinkedBlockingQueue<>()); |
| AtomicInteger processed = new AtomicInteger(); |
| AtomicBoolean failed = new AtomicBoolean(); |
| for (int i = 0; i < threads; i++) { |
| final int threadNumber = i; |
| executor.submit(() -> { |
| try { |
| ByteBuffer readBuffer = ChunkUtils.readData(file, chunkInfo, stats); |
| LOG.info("Read data ({}): {}", threadNumber, |
| new String(readBuffer.array())); |
| if (!Arrays.equals(array, readBuffer.array())) { |
| failed.set(true); |
| } |
| } catch (Exception e) { |
| LOG.error("Failed to read data ({})", threadNumber, e); |
| failed.set(true); |
| } |
| processed.incrementAndGet(); |
| }); |
| } |
| try { |
| GenericTestUtils.waitFor(() -> processed.get() == threads, |
| 100, (int) TimeUnit.SECONDS.toMillis(5)); |
| } finally { |
| executor.shutdownNow(); |
| } |
| assertEquals(threads * stats.getWriteBytes(), stats.getReadBytes()); |
| assertFalse(failed.get()); |
| } finally { |
| Files.deleteIfExists(tempFile); |
| } |
| } |
| |
| @Test |
| public void concurrentProcessing() throws Exception { |
| final int perThreadWait = 1000; |
| final int maxTotalWait = 5000; |
| int threads = 20; |
| List<Path> paths = new LinkedList<>(); |
| |
| try { |
| ExecutorService executor = new ThreadPoolExecutor(threads, threads, |
| 0, TimeUnit.SECONDS, new LinkedBlockingQueue<>()); |
| AtomicInteger processed = new AtomicInteger(); |
| for (int i = 0; i < threads; i++) { |
| Path path = Files.createTempFile(PREFIX, String.valueOf(i)); |
| paths.add(path); |
| executor.submit(() -> { |
| ChunkUtils.processFileExclusively(path, () -> { |
| try { |
| Thread.sleep(perThreadWait); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| processed.incrementAndGet(); |
| return null; |
| }); |
| }); |
| } |
| try { |
| GenericTestUtils.waitFor(() -> processed.get() == threads, |
| 100, maxTotalWait); |
| } finally { |
| executor.shutdownNow(); |
| } |
| } finally { |
| for (Path path : paths) { |
| FileUtils.deleteQuietly(path.toFile()); |
| } |
| } |
| } |
| |
| @Test |
| public void serialRead() throws Exception { |
| String s = "Hello World"; |
| byte[] array = s.getBytes(); |
| ByteBuffer data = ByteBuffer.wrap(array); |
| Path tempFile = Files.createTempFile(PREFIX, "serial"); |
| try { |
| ChunkInfo chunkInfo = new ChunkInfo(tempFile.toString(), |
| 0, data.capacity()); |
| File file = tempFile.toFile(); |
| VolumeIOStats stats = new VolumeIOStats(); |
| ChunkUtils.writeData(file, chunkInfo, data, stats, true); |
| ByteBuffer readBuffer = ChunkUtils.readData(file, chunkInfo, stats); |
| assertArrayEquals(array, readBuffer.array()); |
| assertEquals(stats.getWriteBytes(), stats.getReadBytes()); |
| } catch (Exception e) { |
| LOG.error("Failed to read data", e); |
| } finally { |
| Files.deleteIfExists(tempFile); |
| } |
| } |
| |
| } |