Roman Khachatryan created FLINK-18464:
-----------------------------------------
Summary: ClassCastException during namespace serialization for
checkpoint (Heap)
Key: FLINK-18464
URL: https://issues.apache.org/jira/browse/FLINK-18464
Project: Flink
Issue Type: Bug
Components: Runtime / Checkpointing, Runtime / Task
Affects Versions: 1.9.3
Reporter: Roman Khachatryan
>From
>[thread|http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Checkpoint-failed-because-of-TimeWindow-cannot-be-cast-to-VoidNamespace-td36310.html]
{quote}I'm using flink 1.9 on Mesos and I try to use my own trigger and
evictor. The state is stored to memory.
{quote}
{code:java}
input.setParallelism(processParallelism)
.assignTimestampsAndWatermarks(new UETimeAssigner)
.keyBy(_.key)
.window(TumblingEventTimeWindows.of(Time.minutes(20)))
.trigger(new MyTrigger)
.evictor(new MyEvictor)
.process(new MyFunction).setParallelism(aggregateParallelism)
.addSink(kafkaSink).setParallelism(sinkParallelism)
.name("kafka-record-sink")
java.lang.Exception: Could not materialize checkpoint 1 for operator
Window(TumblingEventTimeWindows(1200000), JoinTrigger, JoinEvictor,
ScalaProcessWindowFunctionWrapper) -> Sink: kafka-record-sink (2/5). at
org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.handleExecutionException(StreamTask.java:1100)
at
org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:1042)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748) Caused by:
java.util.concurrent.ExecutionException: java.lang.ClassCastException:
org.apache.flink.streaming.api.windowing.windows.TimeWindow cannot be cast to
org.apache.flink.runtime.state.VoidNamespace at
java.util.concurrent.FutureTask.report(FutureTask.java:122) at
java.util.concurrent.FutureTask.get(FutureTask.java:192) at
org.apache.flink.runtime.concurrent.FutureUtils.runIfNotDoneAndGet(FutureUtils.java:450)
at
org.apache.flink.streaming.api.operators.OperatorSnapshotFinalizer.<init>(OperatorSnapshotFinalizer.java:47)
at
org.apache.flink.streaming.runtime.tasks.StreamTask$AsyncCheckpointRunnable.run(StreamTask.java:1011)
... 3 more Caused by: java.lang.ClassCastException:
org.apache.flink.streaming.api.windowing.windows.TimeWindow cannot be cast to
org.apache.flink.runtime.state.VoidNamespace at
org.apache.flink.runtime.state.VoidNamespaceSerializer.serialize(VoidNamespaceSerializer.java:32)
at
org.apache.flink.runtime.state.heap.CopyOnWriteStateMapSnapshot.writeState(CopyOnWriteStateMapSnapshot.java:114)
at
org.apache.flink.runtime.state.heap.AbstractStateTableSnapshot.writeStateInKeyGroup(AbstractStateTableSnapshot.java:121)
at
org.apache.flink.runtime.state.heap.CopyOnWriteStateTableSnapshot.writeStateInKeyGroup(CopyOnWriteStateTableSnapshot.java:37)
at
org.apache.flink.runtime.state.heap.HeapSnapshotStrategy$1.callInternal(HeapSnapshotStrategy.java:191)
at
org.apache.flink.runtime.state.heap.HeapSnapshotStrategy$1.callInternal(HeapSnapshotStrategy.java:158)
at
org.apache.flink.runtime.state.AsyncSnapshotCallable.call(AsyncSnapshotCallable.java:75)
at java.util.concurrent.FutureTask.run(FutureTask.java:266) at
org.apache.flink.runtime.concurrent.FutureUtils.runIfNotDoneAndGet(FutureUtils.java:447)
... 5 more {code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
