forked from apache/spark
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
WIP towards testing UnsafeShuffleWriter.
Unfortunately, this involved a TON of mocks; maybe it would be easier to split the writer into more objects, such as a spiller and merger, as I did when the sorting code was more generic.
- Loading branch information
Showing
4 changed files
with
215 additions
and
19 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
172 changes: 172 additions & 0 deletions
172
core/src/test/java/org/apache/spark/shuffle/unsafe/UnsafeShuffleWriterSuite.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| /* | ||
| * 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.spark.shuffle.unsafe; | ||
|
|
||
| import java.io.File; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
| import java.util.ArrayList; | ||
| import java.util.UUID; | ||
|
|
||
| import scala.*; | ||
| import scala.runtime.AbstractFunction1; | ||
|
|
||
| import org.junit.Assert; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
| import org.mockito.invocation.InvocationOnMock; | ||
| import org.mockito.stubbing.Answer; | ||
| import static org.mockito.AdditionalAnswers.returnsFirstArg; | ||
| import static org.mockito.AdditionalAnswers.returnsSecondArg; | ||
| import static org.mockito.Mockito.*; | ||
|
|
||
| import org.apache.spark.*; | ||
| import org.apache.spark.serializer.Serializer; | ||
| import org.apache.spark.shuffle.IndexShuffleBlockManager; | ||
| import org.apache.spark.executor.ShuffleWriteMetrics; | ||
| import org.apache.spark.executor.TaskMetrics; | ||
| import org.apache.spark.serializer.SerializerInstance; | ||
| import org.apache.spark.shuffle.ShuffleMemoryManager; | ||
| import org.apache.spark.storage.*; | ||
| import org.apache.spark.unsafe.memory.ExecutorMemoryManager; | ||
| import org.apache.spark.unsafe.memory.MemoryAllocator; | ||
| import org.apache.spark.unsafe.memory.TaskMemoryManager; | ||
| import org.apache.spark.util.Utils; | ||
| import org.apache.spark.serializer.KryoSerializer; | ||
| import org.apache.spark.scheduler.MapStatus; | ||
|
|
||
| public class UnsafeShuffleWriterSuite { | ||
|
|
||
| final TaskMemoryManager memoryManager = | ||
| new TaskMemoryManager(new ExecutorMemoryManager(MemoryAllocator.HEAP)); | ||
| // Compute key prefixes based on the records' partition ids | ||
| final HashPartitioner hashPartitioner = new HashPartitioner(4); | ||
|
|
||
| ShuffleMemoryManager shuffleMemoryManager; | ||
| BlockManager blockManager; | ||
| IndexShuffleBlockManager shuffleBlockManager; | ||
| DiskBlockManager diskBlockManager; | ||
| File tempDir; | ||
| TaskContext taskContext; | ||
| SparkConf sparkConf; | ||
|
|
||
| private static final class CompressStream extends AbstractFunction1<OutputStream, OutputStream> { | ||
| @Override | ||
| public OutputStream apply(OutputStream stream) { | ||
| return stream; | ||
| } | ||
| } | ||
|
|
||
| @Before | ||
| public void setUp() { | ||
| shuffleMemoryManager = mock(ShuffleMemoryManager.class); | ||
| diskBlockManager = mock(DiskBlockManager.class); | ||
| blockManager = mock(BlockManager.class); | ||
| shuffleBlockManager = mock(IndexShuffleBlockManager.class); | ||
| tempDir = new File(Utils.createTempDir$default$1()); | ||
| taskContext = mock(TaskContext.class); | ||
| sparkConf = new SparkConf(); | ||
| when(taskContext.taskMetrics()).thenReturn(new TaskMetrics()); | ||
| when(shuffleMemoryManager.tryToAcquire(anyLong())).then(returnsFirstArg()); | ||
| when(blockManager.diskBlockManager()).thenReturn(diskBlockManager); | ||
| when(diskBlockManager.createTempLocalBlock()).thenAnswer(new Answer<Tuple2<TempLocalBlockId, File>>() { | ||
| @Override | ||
| public Tuple2<TempLocalBlockId, File> answer(InvocationOnMock invocationOnMock) throws Throwable { | ||
| TempLocalBlockId blockId = new TempLocalBlockId(UUID.randomUUID()); | ||
| File file = File.createTempFile("spillFile", ".spill", tempDir); | ||
| return Tuple2$.MODULE$.apply(blockId, file); | ||
| } | ||
| }); | ||
| when(blockManager.getDiskWriter( | ||
| any(BlockId.class), | ||
| any(File.class), | ||
| any(SerializerInstance.class), | ||
| anyInt(), | ||
| any(ShuffleWriteMetrics.class))).thenAnswer(new Answer<DiskBlockObjectWriter>() { | ||
| @Override | ||
| public DiskBlockObjectWriter answer(InvocationOnMock invocationOnMock) throws Throwable { | ||
| Object[] args = invocationOnMock.getArguments(); | ||
|
|
||
| return new DiskBlockObjectWriter( | ||
| (BlockId) args[0], | ||
| (File) args[1], | ||
| (SerializerInstance) args[2], | ||
| (Integer) args[3], | ||
| new CompressStream(), | ||
| false, | ||
| (ShuffleWriteMetrics) args[4] | ||
| ); | ||
| } | ||
| }); | ||
| when(blockManager.wrapForCompression(any(BlockId.class), any(InputStream.class))) | ||
| .then(returnsSecondArg()); | ||
| } | ||
|
|
||
| @Test | ||
| public void basicShuffleWriting() throws Exception { | ||
|
|
||
| final ShuffleDependency<Object, Object, Object> dep = mock(ShuffleDependency.class); | ||
| when(dep.serializer()).thenReturn(Option.<Serializer>apply(new KryoSerializer(sparkConf))); | ||
| when(dep.partitioner()).thenReturn(hashPartitioner); | ||
|
|
||
| final File mergedOutputFile = File.createTempFile("mergedoutput", "", tempDir); | ||
| when(shuffleBlockManager.getDataFile(anyInt(), anyInt())).thenReturn(mergedOutputFile); | ||
| final long[] partitionSizes = new long[hashPartitioner.numPartitions()]; | ||
| doAnswer(new Answer<Void>() { | ||
| @Override | ||
| public Void answer(InvocationOnMock invocationOnMock) throws Throwable { | ||
| long[] receivedPartitionSizes = (long[]) invocationOnMock.getArguments()[2]; | ||
| System.arraycopy( | ||
| receivedPartitionSizes, 0, partitionSizes, 0, receivedPartitionSizes.length); | ||
| return null; | ||
| } | ||
| }).when(shuffleBlockManager).writeIndexFile(anyInt(), anyInt(), any(long[].class)); | ||
|
|
||
| final UnsafeShuffleWriter<Object, Object> writer = new UnsafeShuffleWriter<Object, Object>( | ||
| blockManager, | ||
| shuffleBlockManager, | ||
| memoryManager, | ||
| shuffleMemoryManager, | ||
| new UnsafeShuffleHandle<Object, Object>(0, 1, dep), | ||
| 0, // map id | ||
| taskContext, | ||
| sparkConf | ||
| ); | ||
|
|
||
| final ArrayList<Product2<Object, Object>> numbersToSort = | ||
| new ArrayList<Product2<Object, Object>>(); | ||
| numbersToSort.add(new Tuple2<Object, Object>(5, 5)); | ||
| numbersToSort.add(new Tuple2<Object, Object>(1, 1)); | ||
| numbersToSort.add(new Tuple2<Object, Object>(3, 3)); | ||
| numbersToSort.add(new Tuple2<Object, Object>(2, 2)); | ||
| numbersToSort.add(new Tuple2<Object, Object>(4, 4)); | ||
|
|
||
|
|
||
| writer.write(numbersToSort.iterator()); | ||
| final MapStatus mapStatus = writer.stop(true).get(); | ||
|
|
||
| long sumOfPartitionSizes = 0; | ||
| for (long size: partitionSizes) { | ||
| sumOfPartitionSizes += size; | ||
| } | ||
| Assert.assertEquals(mergedOutputFile.length(), sumOfPartitionSizes); | ||
|
|
||
| // TODO: test that the temporary spill files were cleaned up after the merge. | ||
| } | ||
|
|
||
| } |