1/* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package org.apache.spark 19 20import org.scalatest.concurrent.Timeouts._ 21import org.scalatest.time.{Millis, Span} 22 23class UnpersistSuite extends SparkFunSuite with LocalSparkContext { 24 test("unpersist RDD") { 25 sc = new SparkContext("local", "test") 26 val rdd = sc.makeRDD(Array(1, 2, 3, 4), 2).cache() 27 rdd.count 28 assert(sc.persistentRdds.isEmpty === false) 29 rdd.unpersist() 30 assert(sc.persistentRdds.isEmpty === true) 31 32 failAfter(Span(3000, Millis)) { 33 try { 34 while (! sc.getRDDStorageInfo.isEmpty) { 35 Thread.sleep(200) 36 } 37 } catch { 38 case _: Throwable => Thread.sleep(10) 39 // Do nothing. We might see exceptions because block manager 40 // is racing this thread to remove entries from the driver. 41 } 42 } 43 assert(sc.getRDDStorageInfo.isEmpty === true) 44 } 45} 46