| /* |
| * 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.flink.test.runtime; |
| |
| import org.apache.flink.api.common.functions.MapFunction; |
| import org.apache.flink.configuration.Configuration; |
| import org.apache.flink.configuration.NettyShuffleEnvironmentOptions; |
| import org.apache.flink.runtime.jobgraph.JobGraph; |
| import org.apache.flink.runtime.jobgraph.JobType; |
| import org.apache.flink.streaming.api.datastream.DataStream; |
| import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; |
| import org.apache.flink.streaming.api.functions.sink.SinkFunction; |
| import org.apache.flink.streaming.api.functions.source.ParallelSourceFunction; |
| import org.apache.flink.streaming.api.graph.GlobalStreamExchangeMode; |
| import org.apache.flink.streaming.api.graph.StreamGraph; |
| import org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** Tests for blocking shuffle. */ |
| public class BlockingShuffleITCase { |
| |
| private static final String RECORD = "hello, world!"; |
| |
| private final int numTaskManagers = 2; |
| |
| private final int numSlotsPerTaskManager = 4; |
| |
| @Test |
| public void testBoundedBlockingShuffle() throws Exception { |
| JobGraph jobGraph = createJobGraph(1000000); |
| Configuration configuration = new Configuration(); |
| JobGraphRunningUtil.execute( |
| jobGraph, configuration, numTaskManagers, numSlotsPerTaskManager); |
| } |
| |
| @Test |
| public void testBoundedBlockingShuffleWithoutData() throws Exception { |
| JobGraph jobGraph = createJobGraph(0); |
| Configuration configuration = new Configuration(); |
| JobGraphRunningUtil.execute( |
| jobGraph, configuration, numTaskManagers, numSlotsPerTaskManager); |
| } |
| |
| @Test |
| public void testSortMergeBlockingShuffle() throws Exception { |
| Configuration configuration = new Configuration(); |
| configuration.setInteger( |
| NettyShuffleEnvironmentOptions.NETWORK_SORT_SHUFFLE_MIN_PARALLELISM, 1); |
| |
| JobGraph jobGraph = createJobGraph(1000000); |
| JobGraphRunningUtil.execute( |
| jobGraph, configuration, numTaskManagers, numSlotsPerTaskManager); |
| } |
| |
| @Test |
| public void testSortMergeBlockingShuffleWithoutData() throws Exception { |
| Configuration configuration = new Configuration(); |
| configuration.setInteger( |
| NettyShuffleEnvironmentOptions.NETWORK_SORT_SHUFFLE_MIN_PARALLELISM, 1); |
| |
| JobGraph jobGraph = createJobGraph(0); |
| JobGraphRunningUtil.execute( |
| jobGraph, configuration, numTaskManagers, numSlotsPerTaskManager); |
| } |
| |
| private JobGraph createJobGraph(int numRecordsToSend) { |
| StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); |
| env.setParallelism(numTaskManagers * numSlotsPerTaskManager); |
| DataStream<String> source = env.addSource(new StringSource(numRecordsToSend)); |
| source.rebalance() |
| .map((MapFunction<String, String>) value -> value) |
| .broadcast() |
| .addSink(new VerifySink()); |
| |
| StreamGraph streamGraph = env.getStreamGraph(); |
| streamGraph.setGlobalStreamExchangeMode(GlobalStreamExchangeMode.ALL_EDGES_BLOCKING); |
| // a scheduler supporting batch jobs is required for this job graph, because it contains |
| // blocking data exchanges. |
| // The scheduler is selected based on the JobType. |
| streamGraph.setJobType(JobType.BATCH); |
| return StreamingJobGraphGenerator.createJobGraph(streamGraph); |
| } |
| |
| private static class StringSource implements ParallelSourceFunction<String> { |
| private volatile boolean isRunning = true; |
| private int numRecordsToSend; |
| |
| StringSource(int numRecordsToSend) { |
| this.numRecordsToSend = numRecordsToSend; |
| } |
| |
| @Override |
| public void run(SourceContext<String> ctx) throws Exception { |
| while (isRunning && numRecordsToSend-- > 0) { |
| ctx.collect(RECORD); |
| } |
| } |
| |
| @Override |
| public void cancel() { |
| isRunning = false; |
| } |
| } |
| |
| private static class VerifySink implements SinkFunction<String> { |
| |
| @Override |
| public void invoke(String value) throws Exception { |
| assertEquals(RECORD, value); |
| } |
| } |
| } |