Caizhi Weng created FLINK-17197:
-----------------------------------
Summary: ContinuousFileReaderOperator might shade the real
exception when processing records
Key: FLINK-17197
URL: https://issues.apache.org/jira/browse/FLINK-17197
Project: Flink
Issue Type: Improvement
Components: Connectors / FileSystem
Affects Versions: 1.11.0
Reporter: Caizhi Weng
In {{ContinuousFileReaderOperator}} we have the following code:
{code:java}
private final transient RunnableWithException processRecordAction = () -> {
try {
processRecord();
} catch (Exception e) {
switchState(ReaderState.CLOSED);
throw e;
}
};
{code}
The reader's state is forced to be {{CLOSED}} when an exception occurs. But
this {{switchState}} method might throw another exception saying that reader's
current state can't be switched directly to {{CLOSED}}. This new exception will
shade the real exception thrown from {{processRecord}}.
To trigger this situation, add the following test method to any blink planner
IT case class (for example
{{org.apache.flink.table.planner.runtime.batch.sql.CalcITCase}}):
{code:java}
@Test
def testCsv(): Unit = {
conf.getConfiguration.setInteger(TABLE_EXEC_RESOURCE_DEFAULT_PARALLELISM, 1)
val tableSource = TestTableSourceSinks.getPersonCsvTableSource
tEnv.registerTableSource("MyTable", tableSource)
val t = tEnv.sqlQuery("SELECT * FROM MyTable")
TableUtils.collectToList(t)
}
{code}
We then need to change {{org.apache.flink.api.java.Utils.CollectHelper}} to
make it a failing sink:
{code:java}
@Override
public void writeRecord(T record) throws IOException {
throw new RuntimeException("writeRecordFails");
// accumulator.add(record, serializer);
}
{code}
Run the test case and the following exception stack will occur:
{code}
org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
at
org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:147)
at
org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:659)
at
org.apache.flink.streaming.util.TestStreamEnvironment.execute(TestStreamEnvironment.java:77)
at
org.apache.flink.table.planner.delegation.ExecutorBase.execute(ExecutorBase.java:51)
at
org.apache.flink.table.planner.utils.TestingTableEnvironment.execute(TableTestBase.scala:1054)
at
org.apache.flink.table.api.TableUtils.collectToList(TableUtils.java:85)
at
org.apache.flink.table.planner.runtime.batch.sql.CalcITCase.testCsv(CalcITCase.scala:73)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.apache.flink.runtime.JobException: Recovery is suppressed by
NoRestartBackoffTimeStrategy
at
org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:112)
at
org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:78)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:189)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:183)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:177)
at
org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:497)
at
org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:384)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:284)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:199)
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152)
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
at akka.actor.ActorCell.invoke(ActorCell.scala:561)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
at akka.dispatch.Mailbox.run(Mailbox.scala:225)
at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at
akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.IllegalStateException: can't switch state from terminal
state READING to CLOSED
at
org.apache.flink.util.Preconditions.checkState(Preconditions.java:217)
at
org.apache.flink.streaming.api.functions.source.ContinuousFileReaderOperator.switchState(ContinuousFileReaderOperator.java:366)
at
org.apache.flink.streaming.api.functions.source.ContinuousFileReaderOperator.lambda$new$0(ContinuousFileReaderOperator.java:213)
at
org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.run(StreamTaskActionExecutor.java:42)
at
org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:78)
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:276)
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxStep(MailboxProcessor.java:205)
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:196)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:490)
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:470)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:718)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:542)
at java.lang.Thread.run(Thread.java:748)
{code}
{{new RuntimeException("writeRecordFails")}} is shaded by
{{java.lang.IllegalStateException: can't switch state from terminal state
READING to CLOSED}}.
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