Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/19041#discussion_r163053606 --- Diff: core/src/test/scala/org/apache/spark/scheduler/CacheRecoveryIntegrationSuite.scala --- @@ -0,0 +1,136 @@ +/* + * 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.scheduler + +import scala.util.Try + +import org.scalatest.{BeforeAndAfterEach, Matchers} +import org.scalatest.concurrent.Eventually +import org.scalatest.time.{Seconds, Span} + +import org.apache.spark.{SparkConf, SparkContext, SparkFunSuite, TestUtils} +import org.apache.spark.internal.config._ +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 +import org.apache.spark.rdd.RDD +import org.apache.spark.storage._ + +class CacheRecoveryIntegrationSuite + extends SparkFunSuite with Matchers with BeforeAndAfterEach with Eventually { + + var shuffleService: TransportServer = _ + var conf: SparkConf = _ + var sc: SparkContext = _ + + private def makeBaseConf() = new SparkConf() + .setAppName("test") + .setMaster("local-cluster[4, 1, 512]") + .set("spark.dynamicAllocation.enabled", "true") + .set("spark.dynamicAllocation.executorIdleTimeout", "1s") // always + .set("spark.dynamicAllocation.cachedExecutorIdleTimeout", "1s") + .set(EXECUTOR_MEMORY.key, "512m") + .set(SHUFFLE_SERVICE_ENABLED.key, "true") + .set(DYN_ALLOCATION_CACHE_RECOVERY.key, "true") + .set(DYN_ALLOCATION_CACHE_RECOVERY_TIMEOUT.key, "500s") + .set(EXECUTOR_INSTANCES.key, "1") + .set(DYN_ALLOCATION_INITIAL_EXECUTORS.key, "4") + .set(DYN_ALLOCATION_MIN_EXECUTORS.key, "3") + + override def beforeEach(): Unit = { + conf = makeBaseConf() + val transportConf = SparkTransportConf.fromSparkConf(conf, "shuffle", numUsableCores = 4) + val rpcHandler = new ExternalShuffleBlockHandler(transportConf, null) + val transportContext = new TransportContext(transportConf, rpcHandler) + shuffleService = transportContext.createServer() --- End diff -- Do you need to start a new shuffle service for each test?
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