[
https://issues.apache.org/jira/browse/FLINK-19330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
David Anderson updated FLINK-19330:
-----------------------------------
Summary: Recovery with async operations fails due to uninitialized
runtimeContext (was: Recovery with async operations fails due to unitialized
runtimeContext)
> Recovery with async operations fails due to uninitialized runtimeContext
> ------------------------------------------------------------------------
>
> Key: FLINK-19330
> URL: https://issues.apache.org/jira/browse/FLINK-19330
> Project: Flink
> Issue Type: Bug
> Components: Stateful Functions
> Reporter: Igal Shilman
> Priority: Blocker
> Labels: pull-request-available
>
> In Flink 1.11, the AbstractStreamOperator's runtimeContext is not fully
> initialized when executing
> {code:java}
> AbstractStreamOperator#intializeState(){code}
> in particular KeyedStateStore is set after intializeState was finished.
> See:
>
> [https://github.com/apache/flink/blob/master/flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/AbstractStreamOperator.java#L258,L259]
> This behaviour was changed from Flink 1.10->Flink 1.11.
> StateFun's FunctionGroupOperator performs its initialization logic at
> initalizeState, and it requires an already initialized runtimeContext.
> This situation causes the following failure after recovery:
> {code:java}
> java.lang.RuntimeException: java.lang.NullPointerException: Keyed state can
> only be used on a 'keyed stream', i.e., after a 'keyBy()' operation.
> at
> org.apache.flink.runtime.state.AbstractKeyedStateBackend.lambda$applyToAllKeys$0(AbstractKeyedStateBackend.java:256)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[?:1.8.0_265]
> at
> java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
> ~[?:1.8.0_265]
> at
> java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:647)
> ~[?:1.8.0_265]
> at
> org.apache.flink.runtime.state.AbstractKeyedStateBackend.applyToAllKeys(AbstractKeyedStateBackend.java:249)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.statefun.flink.core.functions.AsyncOperationFailureNotifier.fireExpiredAsyncOperations(AsyncOperationFailureNotifier.java:42)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.FunctionGroupOperator.initializeState(FunctionGroupOperator.java:160)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.initializeOperatorState(StreamOperatorStateHandler.java:106)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:258)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:290)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$0(StreamTask.java:473)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:47)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:469)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:522)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_265]
> Caused by: java.lang.NullPointerException: Keyed state can only be used on a
> 'keyed stream', i.e., after a 'keyBy()' operation.
> at
> org.apache.flink.util.Preconditions.checkNotNull(Preconditions.java:75)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.api.operators.StreamingRuntimeContext.checkPreconditionsAndGetKeyedStateStore(StreamingRuntimeContext.java:223)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.streaming.api.operators.StreamingRuntimeContext.getState(StreamingRuntimeContext.java:188)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> at
> org.apache.flink.statefun.flink.core.state.FlinkState.createFlinkStateAccessor(FlinkState.java:69)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.state.FlinkStateBinder.bindValue(FlinkStateBinder.java:48)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.sdk.state.StateBinder.bind(StateBinder.java:30)
> ~[statefun-flink-distribution.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.state.PersistedStates.findReflectivelyAndBind(PersistedStates.java:46)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.StatefulFunctionRepository.load(StatefulFunctionRepository.java:74)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.StatefulFunctionRepository.get(StatefulFunctionRepository.java:59)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.LocalFunctionGroup.newActivation(LocalFunctionGroup.java:73)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.LocalFunctionGroup.enqueue(LocalFunctionGroup.java:50)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.Reductions.enqueue(Reductions.java:148)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.Reductions.enqueueAsyncOperationAfterRestore(Reductions.java:154)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.AsyncOperationFailureNotifier.process(AsyncOperationFailureNotifier.java:66)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.statefun.flink.core.functions.AsyncOperationFailureNotifier.process(AsyncOperationFailureNotifier.java:30)
> ~[statefun-flink-core.jar:2.3-SNAPSHOT]
> at
> org.apache.flink.runtime.state.AbstractKeyedStateBackend.lambda$applyToAllKeys$0(AbstractKeyedStateBackend.java:252)
> ~[flink-dist_2.12-1.11.1.jar:1.11.1]
> ... 16 more
> {code}
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