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[SPARK-36242][CORE] Ensure spill file closed before set success = true in ExternalSorter.spillMemoryIteratorToDisk method #33460

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Original file line number Diff line number Diff line change
Expand Up @@ -313,14 +313,13 @@ private[spark] class ExternalSorter[K, V, C](
}
if (objectsWritten > 0) {
flush()
writer.close()
} else {
writer.revertPartialWritesAndClose()
}
success = true
} finally {
if (success) {
writer.close()
} else {
if (!success) {
// This code path only happens if an exception was thrown above before we set success;
// close our stuff and let the exception be thrown further
writer.revertPartialWritesAndClose()
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,148 @@
/*
* 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.util.collection

import java.io.{File, IOException}

import scala.collection.mutable.ArrayBuffer

import org.mockito.ArgumentMatchers.{any, anyInt}
import org.mockito.Mockito.{mock, when}
import org.mockito.invocation.InvocationOnMock
import org.scalatest.BeforeAndAfterEach

import org.apache.spark.{SparkConf, SparkEnv, SparkFunSuite, TaskContext}
import org.apache.spark.executor.ShuffleWriteMetrics
import org.apache.spark.internal.config
import org.apache.spark.memory.{TaskMemoryManager, TestMemoryManager}
import org.apache.spark.serializer.{KryoSerializer, SerializerInstance, SerializerManager}
import org.apache.spark.storage.{BlockId, BlockManager, DiskBlockManager, DiskBlockObjectWriter}
import org.apache.spark.util

class ExternalSorterSpillSuite extends SparkFunSuite with BeforeAndAfterEach {

private val spillFilesCreated = ArrayBuffer.empty[File]

private var tempDir: File = _
private var conf: SparkConf = _
private var taskMemoryManager: TaskMemoryManager = _

private var blockManager: BlockManager = _
private var diskBlockManager: DiskBlockManager = _
private var taskContext: TaskContext = _

override protected def beforeEach(): Unit = {
tempDir = util.Utils.createTempDir(null, "test")
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import Utils directly?

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@LuciferYang LuciferYang Jul 23, 2021

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There is another Utils in org.apache.spark.util.collection package, so util.Utils is used here.

a57e76a change to import Utils directly and rename it to UUtils

Do you have any other suggestions for the naming of UUtils?

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I see. Looks fine either way.

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ok~

spillFilesCreated.clear()

val env: SparkEnv = mock(classOf[SparkEnv])
SparkEnv.set(env)

conf = new SparkConf()
when(SparkEnv.get.conf).thenReturn(conf)

val serializer = new KryoSerializer(conf)
when(SparkEnv.get.serializer).thenReturn(serializer)

blockManager = mock(classOf[BlockManager])
when(SparkEnv.get.blockManager).thenReturn(blockManager)

val manager = new SerializerManager(serializer, conf)
when(blockManager.serializerManager).thenReturn(manager)

diskBlockManager = mock(classOf[DiskBlockManager])
when(blockManager.diskBlockManager).thenReturn(diskBlockManager)

taskContext = mock(classOf[TaskContext])
val memoryManager = new TestMemoryManager(conf)
taskMemoryManager = new TaskMemoryManager(memoryManager, 0)
when(taskContext.taskMemoryManager()).thenReturn(taskMemoryManager)

when(diskBlockManager.createTempShuffleBlock())
.thenAnswer((_: InvocationOnMock) => {
import org.apache.spark.storage.TempShuffleBlockId
import java.util.UUID
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Move to the imports group?

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ok ~

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done

val blockId = TempShuffleBlockId(UUID.randomUUID)
val file = File.createTempFile("spillFile", ".spill", tempDir)
spillFilesCreated += file
(blockId, file)
})
}

override protected def afterEach(): Unit = {
util.Utils.deleteRecursively(tempDir)
SparkEnv.set(null)

val leakedMemory = taskMemoryManager.cleanUpAllAllocatedMemory
if (leakedMemory != 0) {
fail("Test leaked " + leakedMemory + " bytes of managed memory")
}
}

test("SPARK-36242 Spill File should not exists if writer close fails") {
// Prepare the data and ensure that the amount of data let the `spill()` method
// to enter the `objectsWritten > 0` branch
val writeSize = conf.get(config.SHUFFLE_SPILL_BATCH_SIZE) + 1
val dataBuffer = new PartitionedPairBuffer[Int, Int]
(0 until writeSize.toInt).foreach(i => dataBuffer.insert(0, 0, i))

val externalSorter = new TestExternalSorter[Int, Int, Int](taskContext)

// Mock the answer of `blockManager.getDiskWriter` and let the `close()` method of
// `DiskBlockObjectWriter` throw IOException.
val errorMessage = "Spill file close failed"
when(blockManager.getDiskWriter(
any(classOf[BlockId]),
any(classOf[File]),
any(classOf[SerializerInstance]),
anyInt(),
any(classOf[ShuffleWriteMetrics])
)).thenAnswer((invocation: InvocationOnMock) => {
val args = invocation.getArguments
new DiskBlockObjectWriter(
args(1).asInstanceOf[File],
blockManager.serializerManager,
args(2).asInstanceOf[SerializerInstance],
args(3).asInstanceOf[Int],
false,
args(4).asInstanceOf[ShuffleWriteMetrics],
args(0).asInstanceOf[BlockId]
) {
override def close(): Unit = throw new IOException(errorMessage)
}
})

val ioe = intercept[IOException] {
externalSorter.spill(dataBuffer)
}

ioe.getMessage.equals(errorMessage)
// The `TempShuffleBlock` create by diskBlockManager
// will remain before SPARK-36242
assert(!spillFilesCreated(0).exists())
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@mridulm @Ngone51 @HyukjinKwon before this pr, assert(!spillFilesCreated(0).exists()) will failed, I tested it manually.

ExternalSorterSpillSuite.this.spillFilesCreated.apply(0).exists() was true
ScalaTestFailureLocation: org.apache.spark.util.collection.ExternalSorterSpillSuite at (ExternalSorterSpillSuite.scala:137)
org.scalatest.exceptions.TestFailedException: ExternalSorterSpillSuite.this.spillFilesCreated.apply(0).exists() was true
	at org.scalatest.Assertions.newAssertionFailedException(Assertions.scala:472)
	at org.scalatest.Assertions.newAssertionFailedException$(Assertions.scala:471)
	at org.scalatest.Assertions$.newAssertionFailedException(Assertions.scala:1231)
	at org.scalatest.Assertions$AssertionsHelper.macroAssert(Assertions.scala:1295)
	at org.apache.spark.util.collection.ExternalSorterSpillSuite.$anonfun$new$1(ExternalSorterSpillSuite.scala:137)

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Let me check this case with Scala 2.13

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Let me check this case with Scala 2.13

Manual test passed

ExternalSorterSuite relies on 'LocalSparkContext', so I added a new test file

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Thanks for the great work!

}
}

/**
* `TestExternalSorter` used to expand the access scope of the spill method.
*/
private[this] class TestExternalSorter[K, V, C](context: TaskContext)
extends ExternalSorter[K, V, C](context) {
override def spill(collection: WritablePartitionedPairCollection[K, C]): Unit =
super.spill(collection)
}