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https://issues.apache.org/jira/browse/FLINK-22053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arvid Heise reassigned FLINK-22053:
-----------------------------------
Assignee: Arvid Heise
> NumberSequenceSource causes fatal exception when less splits than parallelism.
> ------------------------------------------------------------------------------
>
> Key: FLINK-22053
> URL: https://issues.apache.org/jira/browse/FLINK-22053
> Project: Flink
> Issue Type: Bug
> Components: API / Core
> Affects Versions: 1.12.2, 1.13.0
> Reporter: Arvid Heise
> Assignee: Arvid Heise
> Priority: Major
>
> If more splits than
> {noformat}
> Caused by: java.lang.IllegalArgumentException: 'from' must be <= 'to'
> at
> org.apache.flink.util.Preconditions.checkArgument(Preconditions.java:138)
> ~[flink-core-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.api.connector.source.lib.NumberSequenceSource$NumberSequenceSplit.<init>(NumberSequenceSource.java:148)
> ~[flink-core-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.api.connector.source.lib.NumberSequenceSource.createEnumerator(NumberSequenceSource.java:111)
> ~[flink-core-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.source.coordinator.SourceCoordinator.start(SourceCoordinator.java:126)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.operators.coordination.RecreateOnResetOperatorCoordinator$DeferrableCoordinator.applyCall(RecreateOnResetOperatorCoordinator.java:296)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.operators.coordination.RecreateOnResetOperatorCoordinator.start(RecreateOnResetOperatorCoordinator.java:71)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.operators.coordination.OperatorCoordinatorHolder.start(OperatorCoordinatorHolder.java:182)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.scheduler.DefaultOperatorCoordinatorHandler.startAllOperatorCoordinators(DefaultOperatorCoordinatorHandler.java:85)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.scheduler.SchedulerBase.startScheduling(SchedulerBase.java:501)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.jobmaster.JobMaster.startScheduling(JobMaster.java:955)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.jobmaster.JobMaster.startJobExecution(JobMaster.java:873)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.jobmaster.JobMaster.onStart(JobMaster.java:383)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.rpc.RpcEndpoint.internalCallOnStart(RpcEndpoint.java:181)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor$StoppedState.start(AkkaRpcActor.java:605)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleControlMessage(AkkaRpcActor.java:180)
> ~[flink-runtime_2.11-1.13-SNAPSHOT.jar:1.13-SNAPSHOT]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
> ~[scala-library-2.11.12.jar:?]
> at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
> ~[scala-library-2.11.12.jar:?]
> ... 12 more
> {noformat}
> To reproduce
> {noformat}
> @Test
> public void testLessSplitsThanParallelism() throws Exception {
> StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();
> env.setParallelism(12);
> env.fromSequence(0, 10);
> env.execute();
> }
> {noformat}
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