vanzin commented on a change in pull request #26440: [WIP][SPARK-20628][CORE][K8S] Start to improve Spark decommissioning & preemption support URL: https://github.com/apache/spark/pull/26440#discussion_r363471020
########## File path: core/src/test/scala/org/apache/spark/scheduler/WorkerDecommissionSuite.scala ########## @@ -0,0 +1,76 @@ +/* + * 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.concurrent.TimeoutException +import scala.concurrent.duration._ + +import org.apache.spark.{LocalSparkContext, SparkConf, SparkContext, SparkException, SparkFunSuite} +import org.apache.spark.internal.config +import org.apache.spark.scheduler.cluster.StandaloneSchedulerBackend +import org.apache.spark.util.{RpcUtils, SerializableBuffer, ThreadUtils} + +class WorkerDecommissionSuite extends SparkFunSuite with LocalSparkContext { + + + override def beforeEach(): Unit = { + val conf = new SparkConf().setAppName("test").setMaster("local") + .set(config.Worker.WORKER_DECOMMISSION_ENABLED.key, "true") + + sc = new SparkContext("local-cluster[2, 1, 1024]", "test", conf) + } + + test("verify task with no decommissioning works as expected") { + val input = sc.parallelize(1 to 10) + input.count() + val sleepyRdd = input.mapPartitions{ x => + Thread.sleep(100) + x + } + assert(sleepyRdd.count() === 10) + } + + test("verify a task with all workers decommissioned succeeds") { + val input = sc.parallelize(1 to 10) + // Do a count to wait for the executors to be registered. + input.count() + val sleepyRdd = input.mapPartitions{ x => + Thread.sleep(100) + x + } + // Start the task. + val asyncCount = sleepyRdd.countAsync() + // Give the job long enough to start. + Thread.sleep(20) + // Decommission all the executors, this should not halt the current task. + // The master passing message is tested with Review comment: tested with? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
