[jira] [Created] (FLINK-6294) BucketingSink throws NPE while cancelling job

["Andrey (JIRA)" <ji...@apache.org>]

Andrey created FLINK-6294:
-----------------------------

             Summary: BucketingSink throws NPE while cancelling job
                 Key: FLINK-6294
                 URL: https://issues.apache.org/jira/browse/FLINK-6294
             Project: Flink
          Issue Type: Bug
          Components: Streaming Connectors
    Affects Versions: 1.2.0
            Reporter: Andrey


Steps to reproduce:
* configure BucketingSink and run job
* cancel job from UI before processing any messages
* in logs:
{code}
2017-04-11 10:14:54,681 INFO  org.apache.flink.core.fs.FileSystem                           - Ensuring all FileSystem streams are closed for Source: Custom Source (1/2) [Source: Custom Source (1/2)]
2017-04-11 10:14:54,881 INFO  org.apache.flink.runtime.taskmanager.TaskManager              - Un-registering task and sending final execution state CANCELED to JobManager for task Source: Custom Source (56d0c9ffe06dc3e4481e7ce530d9894f) [flink-akka.actor.default-dispatcher-4]
2017-04-11 10:14:56,584 ERROR org.apache.flink.streaming.runtime.tasks.StreamTask           - Error during disposal of stream operator. [Flat Map -> Sink: Unnamed (2/2)]
java.lang.NullPointerException
	at org.apache.flink.streaming.connectors.fs.bucketing.BucketingSink.close(BucketingSink.java:422)
	at org.apache.flink.api.common.functions.util.FunctionUtils.closeFunction(FunctionUtils.java:43)
	at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.dispose(AbstractUdfStreamOperator.java:127)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.disposeAllOperators(StreamTask.java:442)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:343)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:655)
	at java.lang.Thread.run(Thread.java:745)
{code}



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