@Test
public void testFailingMapTask() {
int keyCnt = 100;
int valCnt = 20;
try {
// environment
initEnvironment(3 * 1024 * 1024);
addInput(new UniformPactRecordGenerator(keyCnt, valCnt, false), 0);
addOutput(this.outList);
// chained combine config
{
final TaskConfig combineConfig = new TaskConfig(new Configuration());
// input
combineConfig.addInputToGroup(0);
combineConfig.setInputSerializer(serFact, 0);
// output
combineConfig.addOutputShipStrategy(ShipStrategyType.FORWARD);
combineConfig.setOutputSerializer(serFact);
// driver
combineConfig.setDriverStrategy(DriverStrategy.PARTIAL_GROUP);
combineConfig.setDriverComparator(compFact, 0);
combineConfig.setMemoryDriver(3 * 1024 * 1024);
// udf
combineConfig.setStubClass(MockFailingCombineStub.class);
getTaskConfig().addChainedTask(ChainedCombineDriver.class, combineConfig, "combine");
}
// chained map+combine
{
final RegularPactTask<GenericMapper<PactRecord, PactRecord>, PactRecord> testTask =
new RegularPactTask<GenericMapper<PactRecord, PactRecord>, PactRecord>();
super.registerTask(testTask, MapDriver.class, MockMapStub.class);
boolean stubFailed = false;
try {
testTask.invoke();
} catch (Exception e) {
stubFailed = true;
}
Assert.assertTrue("Stub exception was not forwarded.", stubFailed);
}
} catch (Exception e) {
e.printStackTrace();
Assert.fail(e.getMessage());
}
}
@Test
public void testMapTask() {
final int keyCnt = 100;
final int valCnt = 20;
try {
// environment
initEnvironment(3 * 1024 * 1024);
addInput(new UniformPactRecordGenerator(keyCnt, valCnt, false), 0);
addOutput(this.outList);
// chained combine config
{
final TaskConfig combineConfig = new TaskConfig(new Configuration());
// input
combineConfig.addInputToGroup(0);
combineConfig.setInputSerializer(serFact, 0);
// output
combineConfig.addOutputShipStrategy(ShipStrategyType.FORWARD);
combineConfig.setOutputSerializer(serFact);
// driver
combineConfig.setDriverStrategy(DriverStrategy.PARTIAL_GROUP);
combineConfig.setDriverComparator(compFact, 0);
combineConfig.setMemoryDriver(3 * 1024 * 1024);
// udf
combineConfig.setStubClass(MockReduceStub.class);
getTaskConfig().addChainedTask(ChainedCombineDriver.class, combineConfig, "combine");
}
// chained map+combine
{
RegularPactTask<GenericMapper<PactRecord, PactRecord>, PactRecord> testTask =
new RegularPactTask<GenericMapper<PactRecord, PactRecord>, PactRecord>();
registerTask(testTask, MapDriver.class, MockMapStub.class);
try {
testTask.invoke();
} catch (Exception e) {
e.printStackTrace();
Assert.fail("Invoke method caused exception.");
}
}
Assert.assertEquals(keyCnt, this.outList.size());
} catch (Exception e) {
e.printStackTrace();
Assert.fail(e.getMessage());
}
}
private static JobTaskVertex createReducer(
JobGraph jobGraph,
int numSubTasks,
TypeSerializerFactory<?> inputSerializer,
TypeComparatorFactory<?> inputComparator,
TypeSerializerFactory<?> outputSerializer) {
// ---------------- the tail (co group) --------------------
JobTaskVertex tail =
JobGraphUtils.createTask(
IterationTailPactTask.class,
"Reduce / Iteration Tail",
jobGraph,
numSubTasks,
numSubTasks);
TaskConfig tailConfig = new TaskConfig(tail.getConfiguration());
tailConfig.setIterationId(ITERATION_ID);
tailConfig.setIsWorksetUpdate();
// inputs and driver
tailConfig.setDriver(ReduceDriver.class);
tailConfig.setDriverStrategy(DriverStrategy.SORTED_GROUP);
tailConfig.addInputToGroup(0);
tailConfig.setInputSerializer(inputSerializer, 0);
tailConfig.setDriverComparator(inputComparator, 0);
tailConfig.setInputLocalStrategy(0, LocalStrategy.SORT);
tailConfig.setInputComparator(inputComparator, 0);
tailConfig.setMemoryInput(0, MEMORY_PER_CONSUMER * JobGraphUtils.MEGABYTE);
tailConfig.setFilehandlesInput(0, 128);
tailConfig.setSpillingThresholdInput(0, 0.9f);
// output
tailConfig.addOutputShipStrategy(ShipStrategyType.FORWARD);
tailConfig.setOutputSerializer(outputSerializer);
// the udf
tailConfig.setStubWrapper(
new UserCodeObjectWrapper<RecomputeClusterCenter>(new RecomputeClusterCenter()));
return tail;
}