Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/8880#discussion_r76102189
--- Diff:
yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnIOEncryptionSuite.scala ---
@@ -0,0 +1,335 @@
+/*
+ * 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.deploy.yarn
+
+import java.io._
+import java.nio.ByteBuffer
+import java.security.PrivilegedExceptionAction
+import java.util.{ArrayList => JArrayList, LinkedList => JLinkedList, UUID}
+
+import scala.runtime.AbstractFunction1
+
+import com.google.common.collect.HashMultiset
+import com.google.common.io.ByteStreams
+import org.apache.hadoop.security.{Credentials, UserGroupInformation}
+import org.junit.Assert.assertEquals
+import org.mockito.Mock
+import org.mockito.MockitoAnnotations
+import org.mockito.invocation.InvocationOnMock
+import org.mockito.stubbing.Answer
+import org.mockito.Answers.RETURNS_SMART_NULLS
+import org.mockito.Matchers.{eq => meq, _}
+import org.mockito.Mockito._
+import org.scalatest.{BeforeAndAfterAll, BeforeAndAfterEach, Matchers}
+
+import org.apache.spark._
+import org.apache.spark.deploy.SparkHadoopUtil
+import org.apache.spark.executor.{ShuffleWriteMetrics, TaskMetrics}
+import org.apache.spark.internal.config._
+import org.apache.spark.io.CompressionCodec
+import org.apache.spark.memory.{TaskMemoryManager, TestMemoryManager}
+import org.apache.spark.network.buffer.NioManagedBuffer
+import org.apache.spark.network.util.LimitedInputStream
+import org.apache.spark.security.CryptoStreamUtils
+import org.apache.spark.serializer._
+import org.apache.spark.shuffle._
+import org.apache.spark.shuffle.sort.{SerializedShuffleHandle,
UnsafeShuffleWriter}
+import org.apache.spark.storage._
+import org.apache.spark.util.Utils
+
+private[spark] class YarnIOEncryptionSuite extends SparkFunSuite with
Matchers with
+ BeforeAndAfterAll with BeforeAndAfterEach {
+ @Mock(answer = RETURNS_SMART_NULLS) private[this] var blockManager:
BlockManager = _
+ @Mock(answer = RETURNS_SMART_NULLS) private[this] var blockResolver:
IndexShuffleBlockResolver = _
+ @Mock(answer = RETURNS_SMART_NULLS) private[this] var diskBlockManager:
DiskBlockManager = _
+ @Mock(answer = RETURNS_SMART_NULLS) private[this] var serializerManager:
SerializerManager = _
+ @Mock(answer = RETURNS_SMART_NULLS) private[this] var taskContext:
TaskContext = _
+ @Mock(
+ answer = RETURNS_SMART_NULLS) private[this] var shuffleDep:
ShuffleDependency[Int, Int, Int] = _
+
+ private[this] val NUM_MAPS = 1
+ private[this] val NUM_PARTITITONS = 4
+ private[this] val REDUCE_ID = 1
+ private[this] val SHUFFLE_ID = 0
+ private[this] val conf = new SparkConf()
+ private[this] val memoryManager = new TestMemoryManager(conf)
+ private[this] val hashPartitioner = new HashPartitioner(NUM_PARTITITONS)
+ private[this] val serializer = new KryoSerializer(conf)
+ private[this] val spillFilesCreated = new JLinkedList[File]()
+ private[this] val taskMemoryManager = new
TaskMemoryManager(memoryManager, 0)
+ private[this] val taskMetrics = new TaskMetrics()
+
+ private[this] var tempDir: File = _
+ private[this] var mergedOutputFile: File = _
+ private[this] var partitionSizesInMergedFile: Array[Long] = _
+ private[this] val ugi =
UserGroupInformation.createUserForTesting("testuser", Array("testgroup"))
+
+ // Create a mocked shuffle handle to pass into HashShuffleReader.
+ private[this] val shuffleHandle = {
+ val dependency = mock(classOf[ShuffleDependency[Int, Int, Int]])
+ when(dependency.serializer).thenReturn(serializer)
+ when(dependency.aggregator).thenReturn(None)
+ when(dependency.keyOrdering).thenReturn(None)
+ new BaseShuffleHandle(SHUFFLE_ID, NUM_MAPS, dependency)
+ }
+
+
+ // Make a mocked MapOutputTracker for the shuffle reader to use to
determine what
+ // shuffle data to read.
+ private[this] val mapOutputTracker = mock(classOf[MapOutputTracker])
+ private[this] val sparkEnv = mock(classOf[SparkEnv])
+
+ override def beforeAll(): Unit = {
+ when(sparkEnv.conf).thenReturn(conf)
+ SparkEnv.set(sparkEnv)
+
+ System.setProperty("SPARK_YARN_MODE", "true")
+ ugi.doAs(new PrivilegedExceptionAction[Unit]() {
+ override def run(): Unit = {
+ conf.set(SPARK_IO_ENCRYPTION_ENABLED, true)
+ val creds = new Credentials()
+ SecurityManager.initIOEncryptionKey(conf, creds)
+ SparkHadoopUtil.get.addCurrentUserCredentials(creds)
+ }
+ })
+ }
+
+ override def afterAll(): Unit = {
+ SparkEnv.set(null)
--- End diff --
You need to unset `SPARK_YARN_MODE` here.
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