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+/*
+ * 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
+
+import java.util.concurrent.atomic.AtomicInteger
+
+import org.scalatest.BeforeAndAfterAll
+
+import org.apache.spark.SparkContext._
+import org.apache.spark.network.TransportContext
+import org.apache.spark.network.netty.SparkTransportConf
+import org.apache.spark.network.server.TransportServer
+import org.apache.spark.network.shuffle.{ExternalShuffleBlockHandler, ExternalShuffleClient}
+
+/**
+ * This suite creates an external shuffle server and routes all shuffle fetches through it.
+ * Note that failures in this suite may arise due to changes in Spark that invalidate expectations
+ * set up in [[ExternalShuffleBlockHandler]], such as changing the format of shuffle files or how
+ * we hash files into folders.
+ */
+class ExternalShuffleServiceSuite extends ShuffleSuite with BeforeAndAfterAll {
+ var server: TransportServer = _
+ var rpcHandler: ExternalShuffleBlockHandler = _
+
+ override def beforeAll() {
+ val transportConf = SparkTransportConf.fromSparkConf(conf)
+ rpcHandler = new ExternalShuffleBlockHandler()
+ val transportContext = new TransportContext(transportConf, rpcHandler)
+ server = transportContext.createServer()
+
+ conf.set("spark.shuffle.manager", "sort")
+ conf.set("spark.shuffle.service.enabled", "true")
+ conf.set("spark.shuffle.service.port", server.getPort.toString)
+ }
+
+ override def afterAll() {
+ server.close()
+ }
+
+ // This test ensures that the external shuffle service is actually in use for the other tests.
+ test("using external shuffle service") {
+ sc = new SparkContext("local-cluster[2,1,512]", "test", conf)
+ sc.env.blockManager.externalShuffleServiceEnabled should equal(true)
+ sc.env.blockManager.shuffleClient.getClass should equal(classOf[ExternalShuffleClient])
+
+ val rdd = sc.parallelize(0 until 1000, 10).map(i => (i, 1)).reduceByKey(_ + _)
+
+ rdd.count()
+ rdd.count()
+
+ // Invalidate the registered executors, disallowing access to their shuffle blocks.
+ rpcHandler.clearRegisteredExecutors()
+
+ // Now Spark will receive FetchFailed, and not retry the stage due to "spark.test.noStageRetry"
+ // being set.
+ val e = intercept[SparkException] {
+ rdd.count()
+ }
+ e.getMessage should include ("Fetch failure will not retry stage due to testing config")
+ }
+}