/*
* 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.compiler;
import static org.junit.Assert.*;
import org.junit.Test;
import org.apache.flink.api.common.Plan;
import org.apache.flink.api.java.DataSet;
import org.apache.flink.api.java.ExecutionEnvironment;
import org.apache.flink.api.java.operators.IterativeDataSet;
import org.apache.flink.compiler.plan.BulkIterationPlanNode;
import org.apache.flink.compiler.plan.DualInputPlanNode;
import org.apache.flink.compiler.plan.OptimizedPlan;
import org.apache.flink.compiler.plan.SingleInputPlanNode;
import org.apache.flink.compiler.plan.SinkPlanNode;
import org.apache.flink.compiler.testfunctions.IdentityMapper;
import org.apache.flink.compiler.testfunctions.SelectOneReducer;
import org.apache.flink.configuration.Configuration;
@SuppressWarnings("serial")
public class PipelineBreakerTest extends CompilerTestBase {
@Test
public void testPipelineBreakerWithBroadcastVariable() {
try {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> source = env.generateSequence(1, 10).map(new IdentityMapper<Long>());
DataSet<Long> result = source.map(new IdentityMapper<Long>())
.map(new IdentityMapper<Long>())
.withBroadcastSet(source, "bc");
result.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
SingleInputPlanNode mapper = (SingleInputPlanNode) sink.getInput().getSource();
assertTrue(mapper.getInput().getTempMode().breaksPipeline());
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testPipelineBreakerBroadcastedAllReduce() {
try {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> sourceWithMapper = env.generateSequence(1, 10).map(new IdentityMapper<Long>());
DataSet<Long> bcInput1 = sourceWithMapper
.map(new IdentityMapper<Long>())
.reduce(new SelectOneReducer<Long>());
DataSet<Long> bcInput2 = env.generateSequence(1, 10);
DataSet<Long> result = sourceWithMapper
.map(new IdentityMapper<Long>())
.withBroadcastSet(bcInput1, "bc1")
.withBroadcastSet(bcInput2, "bc2");
result.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
SingleInputPlanNode mapper = (SingleInputPlanNode) sink.getInput().getSource();
assertTrue(mapper.getInput().getTempMode().breaksPipeline());
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testPipelineBreakerBroadcastedPartialSolution() {
try {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> initialSource = env.generateSequence(1, 10);
IterativeDataSet<Long> iteration = initialSource.iterate(100);
DataSet<Long> sourceWithMapper = env.generateSequence(1, 10).map(new IdentityMapper<Long>());
DataSet<Long> bcInput1 = sourceWithMapper
.map(new IdentityMapper<Long>())
.reduce(new SelectOneReducer<Long>());
DataSet<Long> result = sourceWithMapper
.map(new IdentityMapper<Long>())
.withBroadcastSet(iteration, "bc2")
.withBroadcastSet(bcInput1, "bc1");
iteration.closeWith(result).print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
BulkIterationPlanNode iterationPlanNode = (BulkIterationPlanNode) sink.getInput().getSource();
SingleInputPlanNode mapper = (SingleInputPlanNode) iterationPlanNode.getRootOfStepFunction();
assertTrue(mapper.getInput().getTempMode().breaksPipeline());
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
@Test
public void testPilelineBreakerWithCross() {
try {
{
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> initialSource = env.generateSequence(1, 10);
Configuration conf= new Configuration();
conf.setString(PactCompiler.HINT_LOCAL_STRATEGY, PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_BLOCKED_OUTER_FIRST);
initialSource
.map(new IdentityMapper<Long>())
.cross(initialSource).withParameters(conf)
.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
DualInputPlanNode mapper = (DualInputPlanNode) sink.getInput().getSource();
assertTrue(mapper.getInput1().getTempMode().breaksPipeline());
}
{
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> initialSource = env.generateSequence(1, 10);
Configuration conf= new Configuration();
conf.setString(PactCompiler.HINT_LOCAL_STRATEGY, PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_BLOCKED_OUTER_SECOND);
initialSource
.map(new IdentityMapper<Long>())
.cross(initialSource).withParameters(conf)
.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
DualInputPlanNode mapper = (DualInputPlanNode) sink.getInput().getSource();
assertTrue(mapper.getInput2().getTempMode().breaksPipeline());
}
{
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> initialSource = env.generateSequence(1, 10);
Configuration conf= new Configuration();
conf.setString(PactCompiler.HINT_LOCAL_STRATEGY, PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_STREAMED_OUTER_FIRST);
initialSource
.map(new IdentityMapper<Long>())
.cross(initialSource).withParameters(conf)
.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
DualInputPlanNode mapper = (DualInputPlanNode) sink.getInput().getSource();
assertTrue(mapper.getInput1().getTempMode().breaksPipeline());
}
{
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
env.setDegreeOfParallelism(64);
DataSet<Long> initialSource = env.generateSequence(1, 10);
Configuration conf= new Configuration();
conf.setString(PactCompiler.HINT_LOCAL_STRATEGY, PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_STREAMED_OUTER_SECOND);
initialSource
.map(new IdentityMapper<Long>())
.cross(initialSource).withParameters(conf)
.print();
Plan p = env.createProgramPlan();
OptimizedPlan op = compileNoStats(p);
SinkPlanNode sink = op.getDataSinks().iterator().next();
DualInputPlanNode mapper = (DualInputPlanNode) sink.getInput().getSource();
assertTrue(mapper.getInput2().getTempMode().breaksPipeline());
}
}
catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
}