Ngone51 commented on a change in pull request #30312: URL: https://github.com/apache/spark/pull/30312#discussion_r534275646
########## File path: core/src/test/scala/org/apache/spark/shuffle/ShuffleBlockPusherSuite.scala ########## @@ -0,0 +1,248 @@ +/* + * 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 + +import java.io.File +import java.net.ConnectException +import java.nio.ByteBuffer + +import scala.collection.mutable.ArrayBuffer + +import org.mockito.{Mock, MockitoAnnotations} +import org.mockito.Answers.RETURNS_SMART_NULLS +import org.mockito.ArgumentMatchers.any +import org.mockito.Mockito._ +import org.mockito.invocation.InvocationOnMock +import org.scalatest.BeforeAndAfterEach + +import org.apache.spark._ +import org.apache.spark.network.buffer.ManagedBuffer +import org.apache.spark.network.shuffle.{BlockFetchingListener, BlockStoreClient} +import org.apache.spark.network.shuffle.ErrorHandler.BlockPushErrorHandler +import org.apache.spark.network.util.TransportConf +import org.apache.spark.serializer.JavaSerializer +import org.apache.spark.storage._ + +class ShuffleBlockPusherSuite extends SparkFunSuite with BeforeAndAfterEach { + + @Mock(answer = RETURNS_SMART_NULLS) private var blockManager: BlockManager = _ + @Mock(answer = RETURNS_SMART_NULLS) private var dependency: ShuffleDependency[Int, Int, Int] = _ + @Mock(answer = RETURNS_SMART_NULLS) private var shuffleClient: BlockStoreClient = _ + + private var conf: SparkConf = _ + private var pushedBlocks = new ArrayBuffer[String] + + override def beforeEach(): Unit = { + super.beforeEach() + conf = new SparkConf(loadDefaults = false) + MockitoAnnotations.initMocks(this) + when(dependency.partitioner).thenReturn(new HashPartitioner(8)) + when(dependency.serializer).thenReturn(new JavaSerializer(conf)) + when(dependency.getMergerLocs).thenReturn(Seq(BlockManagerId("test-client", "test-client", 1))) + conf.set("spark.shuffle.push.based.enabled", "true") + conf.set("spark.shuffle.service.enabled", "true") + // Set the env because the shuffler writer gets the shuffle client instance from the env. + val mockEnv = mock(classOf[SparkEnv]) + when(mockEnv.conf).thenReturn(conf) + when(mockEnv.blockManager).thenReturn(blockManager) + SparkEnv.set(mockEnv) + when(blockManager.blockStoreClient).thenReturn(shuffleClient) + } + + override def afterEach(): Unit = { + pushedBlocks.clear() + super.afterEach() + } + + private def interceptPushedBlocksForSuccess(): Unit = { + when(shuffleClient.pushBlocks(any(), any(), any(), any(), any())) + .thenAnswer((invocation: InvocationOnMock) => { + val blocks = invocation.getArguments()(2).asInstanceOf[Array[String]] + pushedBlocks ++= blocks + val managedBuffers = invocation.getArguments()(3).asInstanceOf[Array[ManagedBuffer]] + val blockFetchListener = invocation.getArguments()(4).asInstanceOf[BlockFetchingListener] + (blocks, managedBuffers).zipped.foreach((blockId, buffer) => { + blockFetchListener.onBlockFetchSuccess(blockId, buffer) + }) + }) + } + + test("Basic block push") { + interceptPushedBlocksForSuccess() + new TestShuffleBlockPusher(mock(classOf[File]), + Array.fill(dependency.partitioner.numPartitions) { 2 }, dependency, 0, conf) + .initiateBlockPush() + verify(shuffleClient, times(1)) + .pushBlocks(any(), any(), any(), any(), any()) + assert(pushedBlocks.length == dependency.partitioner.numPartitions) + ShuffleBlockPusher.stop() + } + + test("Large blocks are skipped for push") { + conf.set("spark.shuffle.push.maxBlockSizeToPush", "1k") + interceptPushedBlocksForSuccess() + new TestShuffleBlockPusher(mock(classOf[File]), Array(2, 2, 2, 2, 2, 2, 2, 1100), + dependency, 0, conf).initiateBlockPush() + verify(shuffleClient, times(1)) + .pushBlocks(any(), any(), any(), any(), any()) + assert(pushedBlocks.length == dependency.partitioner.numPartitions - 1) + ShuffleBlockPusher.stop() + } + + test("Number of blocks in flight per address are limited by maxBlocksInFlightPerAddress") { + conf.set("spark.reducer.maxBlocksInFlightPerAddress", "1") + interceptPushedBlocksForSuccess() + new TestShuffleBlockPusher(mock(classOf[File]), + Array.fill(dependency.partitioner.numPartitions) { 2 }, dependency, 0, conf) + .initiateBlockPush() + verify(shuffleClient, times(8)) + .pushBlocks(any(), any(), any(), any(), any()) + assert(pushedBlocks.length == dependency.partitioner.numPartitions) + ShuffleBlockPusher.stop() + } + + test("Hit maxBlocksInFlightPerAddress limit so that the blocks are deferred") { + conf.set("spark.reducer.maxBlocksInFlightPerAddress", "2") + var blockPendingResponse : String = null + var listener : BlockFetchingListener = null + when(shuffleClient.pushBlocks(any(), any(), any(), any(), any())) + .thenAnswer((invocation: InvocationOnMock) => { + val blocks = invocation.getArguments()(2).asInstanceOf[Array[String]] + pushedBlocks ++= blocks + val managedBuffers = invocation.getArguments()(3).asInstanceOf[Array[ManagedBuffer]] + val blockFetchListener = invocation.getArguments()(4).asInstanceOf[BlockFetchingListener] + // Expecting 2 blocks + assert(blocks.length == 2) + if (blockPendingResponse == null) { + blockPendingResponse = blocks(1) + listener = blockFetchListener + // Respond with success only for the first block which will cause all the rest of the + // blocks to be deferred + blockFetchListener.onBlockFetchSuccess(blocks(0), managedBuffers(0)) + } else { + (blocks, managedBuffers).zipped.foreach((blockId, buffer) => { + blockFetchListener.onBlockFetchSuccess(blockId, buffer) + }) + } + }) + new TestShuffleBlockPusher(mock(classOf[File]), + Array.fill(dependency.partitioner.numPartitions) { 2 }, dependency, 0, conf) + .initiateBlockPush() + verify(shuffleClient, times(1)) + .pushBlocks(any(), any(), any(), any(), any()) + assert(pushedBlocks.length == 2) + // this will trigger push of deferred blocks + listener.onBlockFetchSuccess(blockPendingResponse, mock(classOf[ManagedBuffer])) + verify(shuffleClient, times(4)) + .pushBlocks(any(), any(), any(), any(), any()) + assert(pushedBlocks.length == 8) + ShuffleBlockPusher.stop() + } + + test("Number of shuffle blocks grouped in a single push request is limited by " + + "maxBlockBatchSize") { + conf.set("spark.shuffle.push.maxBlockBatchSize", "1m") + interceptPushedBlocksForSuccess() + new TestShuffleBlockPusher(mock(classOf[File]), + Array.fill(dependency.partitioner.numPartitions) { 512 * 1024 }, dependency, 0, conf) + .initiateBlockPush() + verify(shuffleClient, times(4)) + .pushBlocks(any(), any(), any(), any(), any()) + assert(pushedBlocks.length == dependency.partitioner.numPartitions) + ShuffleBlockPusher.stop() + } + + test("Error retries") { Review comment: Thanks for the update. I haven't got a chunk of time to do the review recently. I still need to take another look. It's almost looks good to me. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
