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ASF GitHub Bot commented on FLINK-4631: --------------------------------------- Github user chermenin closed the pull request at: https://github.com/apache/flink/pull/2849 > NullPointerException during stream task cleanup > ----------------------------------------------- > > Key: FLINK-4631 > URL: https://issues.apache.org/jira/browse/FLINK-4631 > Project: Flink > Issue Type: Bug > Affects Versions: 1.1.2 > Environment: Ubuntu server 12.04.5 64 bit > java version "1.8.0_40" > Java(TM) SE Runtime Environment (build 1.8.0_40-b26) > Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode) > Reporter: Avihai Berkovitz > Fix For: 1.2.0 > > > If a streaming job failed during startup (in my case, due to lack of network > buffers), all the tasks are being cancelled before they started. This causes > many instances of the following exception: > {noformat} > 2016-09-18 14:17:12,177 ERROR > org.apache.flink.streaming.runtime.tasks.StreamTask - Error during > cleanup of stream task > java.lang.NullPointerException > at > org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.cleanup(OneInputStreamTask.java:73) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:323) > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:584) > at java.lang.Thread.run(Thread.java:745) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)