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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 org.scalatest.concurrent.Timeouts._
import org.scalatest.time.{Millis, Span}
class UnpersistSuite extends SparkFunSuite with LocalSparkContext {
test("unpersist RDD") {
sc = new SparkContext("local", "test")
val rdd = sc.makeRDD(Array(1, 2, 3, 4), 2).cache()
rdd.count
assert(sc.persistentRdds.isEmpty === false)
rdd.unpersist()
assert(sc.persistentRdds.isEmpty === true)
failAfter(Span(3000, Millis)) {
try {
while (! sc.getRDDStorageInfo.isEmpty) {
Thread.sleep(200)
}
} catch {
case _: Throwable => Thread.sleep(10)
// Do nothing. We might see exceptions because block manager
// is racing this thread to remove entries from the driver.
}
}
assert(sc.getRDDStorageInfo.isEmpty === true)
}
}
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