Chesnay Schepler created FLINK-2541:
---------------------------------------
Summary: TypeComparator creation fails for T2<T1<byte[]>, byte[]>
Key: FLINK-2541
URL: https://issues.apache.org/jira/browse/FLINK-2541
Project: Flink
Issue Type: Bug
Reporter: Chesnay Schepler
When running the following job as a JavaProgramTest:
{code}
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple2<Tuple1<byte[]>, byte[]>> data = env.fromElements(
new Tuple2<Tuple1<byte[]>, byte[]>(
new Tuple1<byte[]>(new byte[]{1, 2}),
new byte[]{1, 2, 3}),
new Tuple2<Tuple1<byte[]>, byte[]>(
new Tuple1<byte[]>(new byte[]{1, 2}),
new byte[]{1, 2, 3}));
data.groupBy("f0.f0")
.reduceGroup(new DummyReduce<Tuple2<Tuple1<byte[]>, byte[]>>())
.print();
{code}
with DummyReduce defined as
{code}
public static class DummyReduce<IN> implements GroupReduceFunction<IN, IN> {
@Override
public void reduce(Iterable<IN> values, Collector<IN> out) throws Exception {
for (IN value : values) {
out.collect(value);
}}}
{code}
i encountered the following exception:
Tuple comparator creation has a bug
java.lang.IllegalArgumentException: Tuple comparator creation has a bug
at
org.apache.flink.api.java.typeutils.TupleTypeInfo.getNewComparator(TupleTypeInfo.java:131)
at
org.apache.flink.api.common.typeutils.CompositeType.createComparator(CompositeType.java:133)
at
org.apache.flink.api.common.typeutils.CompositeType.createComparator(CompositeType.java:122)
at
org.apache.flink.api.common.operators.base.GroupReduceOperatorBase.getTypeComparator(GroupReduceOperatorBase.java:155)
at
org.apache.flink.api.common.operators.base.GroupReduceOperatorBase.executeOnCollections(GroupReduceOperatorBase.java:184)
at
org.apache.flink.api.common.operators.CollectionExecutor.executeUnaryOperator(CollectionExecutor.java:236)
at
org.apache.flink.api.common.operators.CollectionExecutor.execute(CollectionExecutor.java:143)
at
org.apache.flink.api.common.operators.CollectionExecutor.executeUnaryOperator(CollectionExecutor.java:215)
at
org.apache.flink.api.common.operators.CollectionExecutor.execute(CollectionExecutor.java:143)
at
org.apache.flink.api.common.operators.CollectionExecutor.execute(CollectionExecutor.java:125)
at
org.apache.flink.api.common.operators.CollectionExecutor.executeDataSink(CollectionExecutor.java:176)
at
org.apache.flink.api.common.operators.CollectionExecutor.execute(CollectionExecutor.java:152)
at
org.apache.flink.api.common.operators.CollectionExecutor.execute(CollectionExecutor.java:125)
at
org.apache.flink.api.common.operators.CollectionExecutor.execute(CollectionExecutor.java:109)
at
org.apache.flink.api.java.CollectionEnvironment.execute(CollectionEnvironment.java:33)
at
org.apache.flink.test.util.CollectionTestEnvironment.execute(CollectionTestEnvironment.java:35)
at
org.apache.flink.test.util.CollectionTestEnvironment.execute(CollectionTestEnvironment.java:30)
at org.apache.flink.api.java.DataSet.collect(DataSet.java:408)
at org.apache.flink.api.java.DataSet.print(DataSet.java:1349)
at
org.apache.flink.languagebinding.api.java.python.AbstractPythonTest.testProgram(AbstractPythonTest.java:42)
at
org.apache.flink.test.util.JavaProgramTestBase.testJobCollectionExecution(JavaProgramTestBase.java:226)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
at
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
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