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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2017/03/15 13:48:41 UTC
[jira] [Closed] (FLINK-6001) NPE on TumblingEventTimeWindows with
ContinuousEventTimeTrigger and allowedLateness
[ https://issues.apache.org/jira/browse/FLINK-6001?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aljoscha Krettek closed FLINK-6001.
-----------------------------------
Resolution: Fixed
Fix Version/s: 1.2.1
1.3.0
Fixed on release-1.2 in
697ede00d044af4eb18a981fd2734fba3e112a30
Fixed on master in
0a501e9f7f56baba2905002b74746998458db007
> NPE on TumblingEventTimeWindows with ContinuousEventTimeTrigger and allowedLateness
> -----------------------------------------------------------------------------------
>
> Key: FLINK-6001
> URL: https://issues.apache.org/jira/browse/FLINK-6001
> Project: Flink
> Issue Type: Bug
> Components: DataStream API, Streaming
> Affects Versions: 1.2.0
> Reporter: Vladislav Pernin
> Assignee: Aljoscha Krettek
> Priority: Critical
> Fix For: 1.3.0, 1.2.1
>
>
> I try to isolate the problem in a small and simple reproducer by extracting the data from my real setup.
> I fails with NPE at :
> {noformat}
> java.lang.NullPointerException: null
> at org.apache.flink.streaming.api.windowing.triggers.ContinuousEventTimeTrigger.onEventTime(ContinuousEventTimeTrigger.java:81) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator$Context.onEventTime(WindowOperator.java:721) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.onEventTime(WindowOperator.java:425) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.api.operators.HeapInternalTimerService.advanceWatermark(HeapInternalTimerService.java:276) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.api.operators.AbstractStreamOperator.processWatermark(AbstractStreamOperator.java:858) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:168) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:63) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:272) ~[flink-streaming-java_2.11-1.2.0.jar:1.2.0]
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:655) ~[flink-runtime_2.11-1.2.0.jar:1.2.0]
> at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]
> {noformat}
> It fails only with the Thread.sleep. If you uncomment it, it won't fail.
> So, you may have to increase the sleep time depending of your environment.
> I know this is not a very rigourous test, but this is the only way I've found to reproduce it.
> You can find the reproducer here :
> https://github.com/vpernin/flink-window-npe
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