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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.flink.runtime.operators;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.flink.api.common.ExecutionConfig;
import org.apache.flink.api.common.functions.FlatJoinFunction;
import org.apache.flink.api.common.functions.RichFlatJoinFunction;
import org.apache.flink.runtime.testutils.recordutils.RecordComparator;
import org.apache.flink.runtime.testutils.recordutils.RecordPairComparatorFactory;
import org.apache.flink.runtime.operators.testutils.DelayingInfinitiveInputIterator;
import org.apache.flink.runtime.operators.testutils.DriverTestBase;
import org.apache.flink.runtime.operators.testutils.ExpectedTestException;
import org.apache.flink.runtime.operators.testutils.NirvanaOutputList;
import org.apache.flink.runtime.operators.testutils.TaskCancelThread;
import org.apache.flink.runtime.operators.testutils.UniformRecordGenerator;
import org.apache.flink.types.Value;
import org.apache.flink.types.IntValue;
import org.apache.flink.types.Record;
import org.apache.flink.util.Collector;
import org.junit.Assert;
import org.junit.Test;
public class CachedMatchTaskTest extends DriverTestBase<FlatJoinFunction<Record, Record, Record>> {
private static final long HASH_MEM = 6*1024*1024;
private static final long SORT_MEM = 3*1024*1024;
@SuppressWarnings("unchecked")
private final RecordComparator comparator1 = new RecordComparator(
new int[]{0}, (Class<? extends Value>[])new Class[]{ IntValue.class });
@SuppressWarnings("unchecked")
private final RecordComparator comparator2 = new RecordComparator(
new int[]{0}, (Class<? extends Value>[])new Class[]{ IntValue.class });
private final List<Record> outList = new ArrayList<Record>();
public CachedMatchTaskTest(ExecutionConfig config) {
super(config, HASH_MEM, 2, SORT_MEM);
}
@Test
public void testHash1MatchTask() {
int keyCnt1 = 20;
int valCnt1 = 1;
int keyCnt2 = 10;
int valCnt2 = 2;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(this.outList);
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_FIRST_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildFirstCachedJoinDriver<Record, Record, Record> testTask = new BuildFirstCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockMatchStub.class, 3);
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
final int expCnt = valCnt1*valCnt2*Math.min(keyCnt1, keyCnt2);
Assert.assertEquals("Wrong result set size.", expCnt, this.outList.size());
this.outList.clear();
}
@Test
public void testHash2MatchTask() {
int keyCnt1 = 20;
int valCnt1 = 1;
int keyCnt2 = 20;
int valCnt2 = 1;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(this.outList);
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildSecondCachedJoinDriver<Record, Record, Record> testTask = new BuildSecondCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockMatchStub.class, 3);
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
final int expCnt = valCnt1*valCnt2*Math.min(keyCnt1, keyCnt2);
Assert.assertEquals("Wrong result set size.", expCnt, this.outList.size());
this.outList.clear();
}
@Test
public void testHash3MatchTask() {
int keyCnt1 = 20;
int valCnt1 = 1;
int keyCnt2 = 20;
int valCnt2 = 20;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(this.outList);
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_FIRST_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildFirstCachedJoinDriver<Record, Record, Record> testTask = new BuildFirstCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockMatchStub.class, 3);
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
final int expCnt = valCnt1*valCnt2*Math.min(keyCnt1, keyCnt2);
Assert.assertEquals("Wrong result set size.", expCnt, this.outList.size());
this.outList.clear();
}
@Test
public void testHash4MatchTask() {
int keyCnt1 = 20;
int valCnt1 = 20;
int keyCnt2 = 20;
int valCnt2 = 1;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(this.outList);
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildSecondCachedJoinDriver<Record, Record, Record> testTask = new BuildSecondCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockMatchStub.class, 3);
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
final int expCnt = valCnt1*valCnt2*Math.min(keyCnt1, keyCnt2);
Assert.assertEquals("Wrong result set size.", expCnt, this.outList.size());
this.outList.clear();
}
@Test
public void testHash5MatchTask() {
int keyCnt1 = 20;
int valCnt1 = 20;
int keyCnt2 = 20;
int valCnt2 = 20;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(this.outList);
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_FIRST_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildFirstCachedJoinDriver<Record, Record, Record> testTask = new BuildFirstCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockMatchStub.class, 3);
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
final int expCnt = valCnt1*valCnt2*Math.min(keyCnt1, keyCnt2);
Assert.assertEquals("Wrong result set size.", expCnt, this.outList.size());
this.outList.clear();
}
@Test
public void testFailingHashFirstMatchTask() {
int keyCnt1 = 20;
int valCnt1 = 20;
int keyCnt2 = 20;
int valCnt2 = 20;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(new NirvanaOutputList());
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_FIRST_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildFirstCachedJoinDriver<Record, Record, Record> testTask = new BuildFirstCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockFailingMatchStub.class, 3);
Assert.fail("Function exception was not forwarded.");
} catch (ExpectedTestException etex) {
// good!
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
}
@Test
public void testFailingHashSecondMatchTask() {
int keyCnt1 = 20;
int valCnt1 = 20;
int keyCnt2 = 20;
int valCnt2 = 20;
addInput(new UniformRecordGenerator(keyCnt1, valCnt1, false));
addInput(new UniformRecordGenerator(keyCnt2, valCnt2, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(new NirvanaOutputList());
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
BuildSecondCachedJoinDriver<Record, Record, Record> testTask = new BuildSecondCachedJoinDriver<Record, Record, Record>();
try {
testResettableDriver(testTask, MockFailingMatchStub.class, 3);
Assert.fail("Function exception was not forwarded.");
} catch (ExpectedTestException etex) {
// good!
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Test caused an exception.");
}
}
@Test
public void testCancelHashMatchTaskWhileBuildFirst() {
int keyCnt = 20;
int valCnt = 20;
addInput(new DelayingInfinitiveInputIterator(100));
addInput(new UniformRecordGenerator(keyCnt, valCnt, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(new NirvanaOutputList());
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_FIRST_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
final BuildFirstCachedJoinDriver<Record, Record, Record> testTask = new BuildFirstCachedJoinDriver<Record, Record, Record>();
final AtomicBoolean success = new AtomicBoolean(false);
Thread taskRunner = new Thread() {
@Override
public void run() {
try {
testDriver(testTask, MockFailingMatchStub.class);
success.set(true);
} catch (Exception ie) {
ie.printStackTrace();
}
}
};
taskRunner.start();
TaskCancelThread tct = new TaskCancelThread(1, taskRunner, this);
tct.start();
try {
tct.join();
taskRunner.join();
} catch(InterruptedException ie) {
Assert.fail("Joining threads failed");
}
Assert.assertTrue("Test threw an exception even though it was properly canceled.", success.get());
}
@Test
public void testHashCancelMatchTaskWhileBuildSecond() {
int keyCnt = 20;
int valCnt = 20;
addInput(new UniformRecordGenerator(keyCnt, valCnt, false));
addInput(new DelayingInfinitiveInputIterator(100));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(new NirvanaOutputList());
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND_CACHED);
getTaskConfig().setRelativeMemoryDriver(1.0f);
final BuildSecondCachedJoinDriver<Record, Record, Record> testTask = new BuildSecondCachedJoinDriver<Record, Record, Record>();
final AtomicBoolean success = new AtomicBoolean(false);
Thread taskRunner = new Thread() {
@Override
public void run() {
try {
testDriver(testTask, MockMatchStub.class);
success.set(true);
} catch (Exception ie) {
ie.printStackTrace();
}
}
};
taskRunner.start();
TaskCancelThread tct = new TaskCancelThread(1, taskRunner, this);
tct.start();
try {
tct.join();
taskRunner.join();
} catch(InterruptedException ie) {
Assert.fail("Joining threads failed");
}
Assert.assertTrue("Test threw an exception even though it was properly canceled.", success.get());
}
@Test
public void testHashFirstCancelMatchTaskWhileMatching() {
int keyCnt = 20;
int valCnt = 20;
addInput(new UniformRecordGenerator(keyCnt, valCnt, false));
addInput(new UniformRecordGenerator(keyCnt, valCnt, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(new NirvanaOutputList());
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_FIRST);
getTaskConfig().setRelativeMemoryDriver(1.0f);
final BuildFirstCachedJoinDriver<Record, Record, Record> testTask = new BuildFirstCachedJoinDriver<Record, Record, Record>();
final AtomicBoolean success = new AtomicBoolean(false);
Thread taskRunner = new Thread() {
@Override
public void run() {
try {
testDriver(testTask, MockMatchStub.class);
success.set(true);
} catch (Exception ie) {
ie.printStackTrace();
}
}
};
taskRunner.start();
TaskCancelThread tct = new TaskCancelThread(1, taskRunner, this);
tct.start();
try {
tct.join();
taskRunner.join();
} catch(InterruptedException ie) {
Assert.fail("Joining threads failed");
}
Assert.assertTrue("Test threw an exception even though it was properly canceled.", success.get());
}
@Test
public void testHashSecondCancelMatchTaskWhileMatching() {
int keyCnt = 20;
int valCnt = 20;
addInput(new UniformRecordGenerator(keyCnt, valCnt, false));
addInput(new UniformRecordGenerator(keyCnt, valCnt, false));
addDriverComparator(this.comparator1);
addDriverComparator(this.comparator2);
getTaskConfig().setDriverPairComparator(RecordPairComparatorFactory.get());
setOutput(new NirvanaOutputList());
getTaskConfig().setDriverStrategy(DriverStrategy.HYBRIDHASH_BUILD_SECOND);
getTaskConfig().setRelativeMemoryDriver(1.0f);
final BuildSecondCachedJoinDriver<Record, Record, Record> testTask = new BuildSecondCachedJoinDriver<Record, Record, Record>();
final AtomicBoolean success = new AtomicBoolean(false);
Thread taskRunner = new Thread() {
@Override
public void run() {
try {
testDriver(testTask, MockMatchStub.class);
success.set(true);
} catch (Exception ie) {
ie.printStackTrace();
}
}
};
taskRunner.start();
TaskCancelThread tct = new TaskCancelThread(1, taskRunner, this);
tct.start();
try {
tct.join();
taskRunner.join();
} catch(InterruptedException ie) {
Assert.fail("Joining threads failed");
}
Assert.assertTrue("Test threw an exception even though it was properly canceled.", success.get());
}
// =================================================================================================
public static final class MockMatchStub extends RichFlatJoinFunction<Record, Record, Record> {
private static final long serialVersionUID = 1L;
@Override
public void join(Record record1, Record record2, Collector<Record> out) throws Exception {
out.collect(record1);
}
}
public static final class MockFailingMatchStub extends RichFlatJoinFunction<Record, Record, Record> {
private static final long serialVersionUID = 1L;
private int cnt = 0;
@Override
public void join(Record record1, Record record2, Collector<Record> out) throws Exception {
if (++this.cnt >= 10) {
throw new ExpectedTestException();
}
out.collect(record1);
}
}
public static final class MockDelayingMatchStub extends RichFlatJoinFunction<Record, Record, Record> {
private static final long serialVersionUID = 1L;
@Override
public void join(Record record1, Record record2, Collector<Record> out) {
try {
Thread.sleep(100);
} catch (InterruptedException e) { }
}
}
}